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Best Money Market Rates in Grafton, Wisconsin (WI) - May 2026

Content reviewed by
Brian McKay Brian McKay
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Editorial Disclosure The rates displayed are actual, verified rates sourced directly from the official websites of banks and credit unions. Our editorial content is independent of any advertiser relationships.
| ✓Fact Checked | Last Updated: May 15, 2026

Current Grafton, Wisconsin and the surrounding area money market deposit account rates include Landmark Credit UnionLandmark Credit Union2190 Wisconsin Ave, Grafton, WI 53024A+5.0 ★Texas Ratio: 3.95% Signature Business Money Market at 3.00% APY, North Shore BankNorth Shore Bank2301 Wisconsin Ave, Grafton, WI 53024A+5.0 ★Texas Ratio: 0.63% Premier Money Market at 3.00% APY, Bank Five NineBank Five Nine2300 Washington St, Grafton, WI 53024A+5.0 ★Texas Ratio: 3.03% Relationship Money Market** at 2.50% APY, Horicon BankHoricon Bank2090 Wisconsin Ave, Grafton, WI 53024A5.0 ★Texas Ratio: 6.70% Money Market - Business at 2.48% APY, and Kohler Credit UnionKohler Credit Union2550 Washington St, Grafton, WI 53024 9397A+5.0 ★Texas Ratio: 4.40% Premium Money Market at 2.12% APY. Money market rates as of May 15, 2026 according to verified data from MonitorBankRates.

Grafton has 7 local institutions in our database, with money market rates as high as 3.00% APY from Landmark Credit Union at 2190 Wisconsin Ave, Grafton, WI 53024. Use the table below to compare all available offers, including options from institutions serving the broader Wisconsin area. Rates are continually updated — we recommend checking back frequently.

Rates reflect recent market quotes and representative offers available to depositors in Grafton, Wisconsin and surrounding area. Last Updated and Verified: May 15, 2026

Compare the Best Money Market Rates Today in Grafton, Wisconsin & the Surrounding Area

Source: Verified Money Market Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
North Shore Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.63%
2301 Wisconsin Ave, Grafton, WI 53024
Premier Money Market
3.00%
$0
View
▼
Rate2.97%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Landmark Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.95%
2190 Wisconsin Ave, Grafton, WI 53024
Signature Business Money Market
3.00%
$0
View
▼
Rate2.96%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

North Shore Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.63%
2301 Wisconsin Ave, Grafton, WI 53024
Premier Money Market
2.75%
$0
View
▼
Rate2.72%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
2.50%
$0
View
▼
Rate2.47%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Landmark Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.95%
2190 Wisconsin Ave, Grafton, WI 53024
Signature Business Money Market
2.50%
$0
View
▼
Rate2.47%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Personal
2.48%
$0
View
▼
Rate2.45%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal
2.48%
$0
View
▼
Rate2.45%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Business
2.48%
$0
View
▼
Rate2.45%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal
2.32%
$0
View
▼
Rate2.30%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal - 5,000,000.00
2.32%
$0
View
▼
Rate2.30%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

$1,000,000.01

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Business
2.32%
$0
View
▼
Rate2.30%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Personal
2.32%
$0
View
▼
Rate2.30%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Kohler Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.40%
2550 Washington St, Grafton, WI 53024 9397
Premium Money Market
2.12%
$0
View
▼
Rate2.10%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal
2.12%
$0
View
▼
Rate2.10%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Personal
2.12%
$0
View
▼
Rate2.10%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Business
2.12%
$0
View
▼
Rate2.10%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Landmark Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.95%
2190 Wisconsin Ave, Grafton, WI 53024
Signature Business Money Market
2.00%
$0
View
▼
Rate1.98%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal
1.82%
$0
View
▼
Rate1.80%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Personal
1.82%
$0
View
▼
Rate1.80%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal - 500,000.00
1.82%
$0
View
▼
Rate1.80%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

$250,000.01

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Business
1.82%
$0
View
▼
Rate1.80%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal - 250,000.00
1.56%
$0
View
▼
Rate1.55%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

$100,000.01

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Business
1.56%
$0
View
▼
Rate1.55%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal
1.56%
$0
View
▼
Rate1.55%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Personal
1.56%
$0
View
▼
Rate1.55%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Kohler Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.40%
2550 Washington St, Grafton, WI 53024 9397
Premium Money Market
1.51%
$0
View
▼
Rate1.50%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

North Shore Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.63%
2301 Wisconsin Ave, Grafton, WI 53024
Premier Money Market
1.50%
$0
View
▼
Rate1.50%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Kohler Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.40%
2550 Washington St, Grafton, WI 53024 9397
Premium Money Market
1.21%
$0
View
▼
Rate1.20%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal - 100,000.00
1.06%
$0
View
▼
Rate1.05%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

$0

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Municipal
1.06%
$0
View
▼
Rate1.05%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Business
1.06%
$0
View
▼
Rate1.05%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
Money Market - Personal
1.06%
$0
View
▼
Rate1.05%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

PyraMax Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 1.33%
1150 Washington St, Grafton, WI 53024
Platinum Money Market
1.00%
$0
View
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

North Shore Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.63%
2301 Wisconsin Ave, Grafton, WI 53024
Premier Money Market
1.00%
$0
View
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

PyraMax Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 1.33%
1150 Washington St, Grafton, WI 53024
Maximizer Money Market
1.00%
$0
View
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Horicon Bank
Institution Rating:
A5.0 ★ Texas Ratio: 6.70%
2090 Wisconsin Ave, Grafton, WI 53024
IRA Money Market
0.95%
$0
View
▼
Rate0.95%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Kohler Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.40%
2550 Washington St, Grafton, WI 53024 9397
Premium Money Market
0.85%
$0
View
▼
Rate0.85%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Kohler Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.40%
2550 Washington St, Grafton, WI 53024 9397
Premium Money Market
0.75%
$0
View
▼
Rate0.75%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
0.60%
$0
View
▼
Rate0.60%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Kohler Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.40%
2550 Washington St, Grafton, WI 53024 9397
Premium Money Market
0.55%
$0
View
▼
Rate0.55%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
0.50%
$0
View
▼
Rate0.50%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Landmark Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.95%
2190 Wisconsin Ave, Grafton, WI 53024
Signature Business Money Market
0.40%
$0
View
▼
Rate0.40%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
0.40%
$0
View
▼
Rate0.40%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Port Washington State Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.20%
2080 Washington St, Grafton, WI 53024
Premium Money Market
0.35%
$10,000
View
▼
Rate0.35%
Min Deposit$10,000
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
First Rate Money Market* (Consumer)
0.30%
$0
View
▼
Rate0.30%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
0.30%
$0
View
▼
Rate0.30%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

PyraMax Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 1.33%
1150 Washington St, Grafton, WI 53024
Maximizer Money Market
0.25%
$0
View
▼
Rate0.25%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
First Rate Money Market* (Consumer)
0.25%
$0
View
▼
Rate0.25%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
0.20%
$0
View
▼
Rate0.20%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
First Rate Money Market* (Consumer)
0.20%
$0
View
▼
Rate0.20%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
First Rate Money Market* (Consumer)
0.15%
$0
View
▼
Rate0.15%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

PyraMax Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 1.33%
1150 Washington St, Grafton, WI 53024
Platinum Money Market
0.15%
$0
View
▼
Rate0.15%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

North Shore Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 0.63%
2301 Wisconsin Ave, Grafton, WI 53024
Standard Money Market
0.15%
$0
View
▼
Rate0.15%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

PyraMax Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 1.33%
1150 Washington St, Grafton, WI 53024
Maximizer Money Market
0.15%
$0
View
▼
Rate0.15%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
First Rate Money Market* (Consumer)
0.10%
$0
View
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
IRA Money Market***
0.10%
$0
View
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

PyraMax Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 1.33%
1150 Washington St, Grafton, WI 53024
Maximizer Money Market
0.10%
$0
View
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMay 5, 2026
Details

Port Washington State Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.20%
2080 Washington St, Grafton, WI 53024
Premium Money Market
0.10%
$10,000
View
▼
Rate0.10%
Min Deposit$10,000
Min Balance—
UpdatedMay 4, 2026
Details

Bank Five Nine
Institution Rating:
A+5.0 ★ Texas Ratio: 3.03%
2300 Washington St, Grafton, WI 53024
Relationship Money Market**
0.10%
$0
View
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Port Washington State Bank
Institution Rating:
A+5.0 ★ Texas Ratio: 2.20%
2080 Washington St, Grafton, WI 53024
Money Market
0.10%
$1,000
View
▼
Rate0.10%
Min Deposit$1,000
Min Balance—
UpdatedMay 4, 2026
Details

Landmark Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 3.95%
2190 Wisconsin Ave, Grafton, WI 53024
Signature Business Money Market
0.00%
$0
View
▼
Rate—
Min Deposit$0
Min Balance—
UpdatedMay 4, 2026
Details

Shoreline Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 5.83%
Elite Money Market
4.00%
$0
View
▼
Rate3.93%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Community First Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.81%
Member's Choice IRA Money Market
3.95%
$0
View
▼
Rate3.88%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

with active checking*

Community First Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.81%
Member's Choice IRA Money Market
3.90%
$0
View
▼
Rate3.83%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

with active checking*

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Business SelectMoney Market
3.90%
$0
View
▼
Rate3.83%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Money Market Platinum Select
3.90%
$0
View
▼
Rate3.83%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Indianhead Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 1.50%
Money Market Special
3.87%
$0
View
▼
Rate—
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Qualifying balance up to $1,000.00

Sentry Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.87%
Money Market
3.82%
$0
View
▼
Rate3.75%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Business SelectMoney Market
3.80%
$0
View
▼
Rate3.74%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Money Market Platinum Select
3.80%
$0
View
▼
Rate3.74%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Fox Communities Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 2.46%
Fox Rewards Money Market
3.75%
$0
View
▼
Rate3.69%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Qualifications Required; Qualifying balance up to $14,999.99

Community First Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.81%
Member's Choice IRA Money Market
3.65%
$0
View
▼
Rate3.59%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

with active checking*

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Business SelectMoney Market
3.65%
$0
View
▼
Rate3.59%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Money Market Platinum Select
3.65%
$0
View
▼
Rate3.59%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Northwestern Mutual Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.06%
1500 Club - Money Market
3.56%
$0
View
▼
Rate3.50%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Community First Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.81%
Member's Choice IRA Money Market
3.50%
$0
View
▼
Rate3.45%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

with active checking*

Simplicity Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 10.89%
Business Money Market
3.50%
$0
View
▼
Rate3.45%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Simplicity Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 10.89%
Money Market Checking
3.50%
$0
View
▼
Rate3.45%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Fox Communities Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 2.46%
Fox Rewards Money Market
3.50%
$0
View
▼
Rate3.44%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Qualifications Required; Qualifying balance up to $14,999.99

Unison Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 2.00%
Money Market Accounts
3.50%
$0
View
▼
Rate3.44%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Dividend Rate with Checking

Baxter Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.73%
Money Market Special
3.50%
$0
View
▼
Rate—
Min Deposit$0
Min Balance—
UpdatedMay 12, 2026
Details

Baxter Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.73%
Money Market Special Intro rate
3.50%
$0
View
▼
Rate3.45%
Min Deposit$0
Min Balance—
UpdatedMay 12, 2026
Details

$15,000+

TruStone Financial Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 5.44%
Business High-Yield Money Market
3.50%
$5
View
▼
Rate3.45%
Min Deposit$5
Min Balance—
UpdatedMay 12, 2026
Details

$5,000,000 And Greater

Mayo Employees Federal Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.10%
Premium Money Market Savings
3.40%
$1,000,000
View
▼
Rate3.36%
Min Deposit$1,000,000
Min Balance—
UpdatedMay 10, 2026
Details

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Business SelectMoney Market
3.40%
$0
View
▼
Rate3.35%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Capital Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 7.58%
Money Market Platinum Select
3.40%
$0
View
▼
Rate3.35%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Unison Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 2.00%
Money Market Accounts
3.39%
$0
View
▼
Rate3.34%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Dividend Rate without Checking

TruStone Financial Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 5.44%
Business High-Yield Money Market
3.25%
$5
View
▼
Rate3.20%
Min Deposit$5
Min Balance—
UpdatedMay 12, 2026
Details

$3,000,000 - $4,999,999.99

Simplicity Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 10.89%
Money Market Checking
3.25%
$0
View
▼
Rate3.20%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Simplicity Credit Union
Institution Rating:
A5.0 ★ Texas Ratio: 10.89%
Business Money Market
3.25%
$0
View
▼
Rate3.20%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Prospera Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 2.24%
Thrive Money Market
3.20%
$0
View
▼
Rate3.15%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Mayo Employees Federal Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.10%
Premium Money Market Savings
3.05%
$750,000
View
▼
Rate3.02%
Min Deposit$750,000
Min Balance—
UpdatedMay 10, 2026
Details

University of Wisconsin Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 4.81%
Investor's Indexed Money Market
3.05%
$0
View
▼
Rate—
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Members Advantage Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.47%
Money Market
3.05%
$0
View
▼
Rate—
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

As High As

Members Advantage Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.47%
Money Market Savings
3.05%
$250,000
View
▼
Rate3.00%
Min Deposit$250,000
Min Balance—
UpdatedMay 10, 2026
Details

$1000 to open/HSA Money Market Savings (no minimum)

Shoreline Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 5.83%
Elite Money Market
3.00%
$0
View
▼
Rate2.96%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

Community First Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 0.81%
Member's Choice IRA Money Market
3.00%
$0
View
▼
Rate2.96%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

with active checking*

TruStone Financial Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 5.44%
Business High-Yield Money Market
3.00%
$5
View
▼
Rate2.96%
Min Deposit$5
Min Balance—
UpdatedMay 12, 2026
Details

$1,000,000 - $2,999,999.99

TruStone Financial Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 5.44%
Money Market
3.00%
$2,500
View
▼
Rate2.96%
Min Deposit$2,500
Min Balance—
UpdatedMay 12, 2026
Details

Valley Communities Credit Union
Institution Rating:
A+5.0 ★ Texas Ratio: 1.90%
Money Market
2.94%
$0
View
▼
Rate2.90%
Min Deposit$0
Min Balance—
UpdatedMay 10, 2026
Details

The Annual Percentage Yields (APYs) displayed are based on the highest APY offered for the specified deposit amount or less. Rates may change without prior notice. Rates reflect recent market quotes and representative offers available to depositors in Grafton, Wisconsin and the surrounding area.

Banks and Credit Unions: If you identify an incorrect rate or wish to request the removal of your institution’s data, please contact us here.

Grafton, WI Money Market Rate Trends

Compare local Grafton, WI money market quotes against the statewide average

Daily money market rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.

View Full Wisconsin MMA Trends →
High-Yield MMA — WI Avg
2.981%
Unchanged vs 7 days ago

Wisconsin high-yield MMA rates currently average 2.981% APY.

Standard MMA — WI Avg
0.884%
Unchanged vs 7 days ago

Wisconsin standard MMA rates currently average 0.884% APY.

As of May 15, 2026 • Rate data sourced from 8,500+ monitored institutions Powered by MonitorBankRates

Methodology & Data Sources

Independent, Free, and Unbiased Rate Comparisons: MonitorBankRates.com is an independent rate comparison service. Our Grafton, Wisconsin money market rate tables are free for consumers to use, and we do not receive payment from any financial institution to be included or to be ranked in any particular order. Listings are based solely on the rates each institution publicly advertises on its own website.

A Note on Third-Party Rate Tools: Some pages on our site also feature rate comparison widgets and tools provided by third-party partners. These tools may include sponsored listings or affiliate links, and we may receive compensation when users click through them. We clearly label these widgets so you can tell at a glance which rates come from our independent MonitorBankRates.com tables and which come from our advertising partners.

Direct-Sourced & Verified Money Market Rate Data: We aggregate money market deposit account rates for Grafton, Wisconsin directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every money market rate displayed on MonitorBankRates.com is highly accurate and trustworthy.

Local, Regional, and National Coverage: Our systems constantly monitor the market to provide a complete picture of available yields in Grafton, Wisconsin. We feature a comprehensive mix of institutions from neighborhood credit unions and mid-sized regional banks to large national institutions available to savers in WI.

Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update money market rates daily. Because MMA yields can fluctuate rapidly based on market conditions, every product listed features its own specific “last updated” date, giving you complete transparency.

Frequently Asked Questions about Money Market Accounts in Grafton, Wisconsin

What is a Money Market Account (MMA)?

A Money Market Account (MMA), formally known as a money market deposit account (MMDA), is a type of deposit account that often pays higher interest rates than standard savings accounts. They usually come with check-writing privileges and debit card access, offering a balance of growth and liquidity for savers in Wisconsin.

Are Money Market accounts in Grafton, Wisconsin safe?

Yes, as long as the institution is FDIC insured (for banks) or NCUA insured (for credit unions). This provides federal protection for your deposits in Wisconsin up to $250,000 per depositor, per institution.

How often do MMA rates change in Grafton, Wisconsin?

Money market rates are variable and can change at any time based on market conditions and Federal Reserve decisions. We update our local Wisconsin rate tables daily to ensure you see the most current high-yield options.

Can I write checks from a Money Market Account?

Yes, most Money Market Accounts allow you to write a limited number of checks or make debit card transactions each month (typically up to 6), making them more flexible than a standard savings account.

How much do I need to deposit to open a money market account in Grafton, Wisconsin?

Minimum deposit requirements vary widely. Some online money market deposit accounts can be opened with no minimum, while many banks and credit unions in Grafton, Wisconsin require an initial deposit of $1,000 to $2,500 to earn the highest advertised APY. Larger deposits often unlock higher rate tiers, and FDIC or NCUA insurance protects deposits up to $250,000 per depositor, per institution.

Best Money Market Rates in Grafton, Wisconsin

Here are some of the highest money market account APYs currently available in Grafton, Wisconsin and the surrounding area:
  • Landmark Credit Union
    Signature Business Money Market — 3.00% APY
  • North Shore Bank
    Premier Money Market — 3.00% APY
  • Bank Five Nine
    Relationship Money Market** — 2.50% APY
  • Horicon Bank
    Money Market - Business — 2.48% APY
  • Kohler Credit Union
    Premium Money Market — 2.12% APY
Money Market Rates reflect actual verified offers from banks and credit unions actively accepting deposits in Grafton, Wisconsin. Your final available rate may depend on deposit amount and daily market movements. Last Updated and Verified: May 15, 2026

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