The best savings rates for Diamond Bar, California and the surrounding area include Royal Business BankRoyal Business Bank1139 S Diamond Bar Blvd, Diamond Bar, CA 91765A5.0 ★Texas Ratio: 6.64% New Year Flexible Savings Account at 3.75% APY, Bank of HopeBank of Hope2809 S Diamond Bar Blvd, Diamond Bar, CA 91765A+5.0 ★Texas Ratio: 3.52% Kids Savings at 2.00% APY, Arrowhead Central Credit UnionArrowhead Central Credit Union750 N Diamond Bar Blvd, Diamond Bar, CA 91765A+5.0 ★Texas Ratio: 2.28% Arrowhead Savings at 0.15% APY, Cathay BankCathay Bank1195 S Diamond Bar Blvd, Diamond Bar, CA 91765A+5.0 ★Texas Ratio: 3.45% Student Savings at 0.05% APY, and Wells FargoWells Fargo1150 S Diamond Bar Blvd, Diamond Bar, CA 91765A5.0 ★Texas Ratio: 7.44% Platinum Savings at 0.05% APY. Savings rates as of March 26, 2026 according to verified data from MonitorBankRates.
To see how these savings rates in Diamond Bar, California, and the surrounding area, compare, use our comprehensive tables below for side-by-side comparisons to find the best savings rates available. Rates in Diamond Bar, California (CA) are continually updated — we recommend checking back frequently.
Savings rates reflect recent market quotes and representative offers available to depositors in Diamond Bar, California and the surrounding area. Last Updated and Verified: March 26, 2026
Terms and Conditions apply.
Complimentary Kids Savings stackable money bank and passbook at new account opening
$1 minimum opening deposit and $1 balance to maintain.
$1 minimum opening deposit and $1 balance to maintain.
$1 minimum opening deposit and $1 balance to maintain.
Avoid the $12 monthly service fee with a $3,500 minimum daily balance each fee period.; $25 minimum opening deposit
Avoid the $12 monthly service fee with a $3,500 minimum daily balance each fee period.; $25 minimum opening deposit
Avoid the $12 monthly service fee with a $3,500 minimum daily balance each fee period.; $25 minimum opening deposit
$25 minimum opening deposit
$1 minimum opening deposit and $1 balance to maintain.
Maximum contribution of $2,000 per month from a qualified source, such as payroll from LAUSD or LACCD
Certificated and classified school employees of our Board approved SEGs are eligible for our Summertime Savings Account bonus rate.
Qualifying balance up to $500.00
Qualifying balance up to $5,000.00
Qualifications Required: First Entertainment Checking Account; eStatements only; active online Bill Pay service or Direct Deposit; Qualifying balance up to $500.00
Qualifying balance up to $5000
Qualifying balance up to $500.00
Qualifying balance up to $2,500.00
Qualifying balance up to $10,000.00
when you add Direct Deposit to a new or existing Justice Federal Checking Account.
Qualifying balance up to $25,000.00
Qualifying balance up to $25,000.00
Qualifying balance up to $5,000
Earn 10x the National Average2
New account APY3; This account is not available to open through our financial centers; it can only be opened online or by calling our client solutions team.
$25 Bonus
Online Only
RELATIONSHIP
Online account opening required
Standard Rate
guaranteed through June 30, 2026
Compare local Diamond Bar, CA savings rate quotes against the statewide average
Weekly savings rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.
California high-yield savings rates fell 2.821 points this week to 0.193% APY, down from 3.015% last week.
California standard savings rates rose 0.126 points this week to 0.581% APY, up from 0.455% last week.
Direct-Sourced & Verified Savings Rate Data: We aggregate savings account rates for Diamond Bar, California directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every savings 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 Diamond Bar, California. We feature a comprehensive mix of institutions — from neighborhood credit unions and competitive regional banks to large national institutions available to savers in CA.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update savings rates daily. Because savings account yields can fluctuate rapidly, every product listed features its own specific “last updated” date, giving you complete transparency.