Best Banks & Credit Unions in Castle Rock, Colorado

Banks and credit unions serving Castle Rock, Colorado. Compare up to 4.07% APY, fees, minimums and membership rules, dated when we read them.

This page covers banks, credit unions, and local branches available to residents of Castle Rock, Colorado. All rankings inherit from the Colorado state directory. Every institution listed is licensed to serve Castle Rock residents and is either headquartered in Colorado or operates branches in the metro.

Top options in Castle Rock

• Bellco Credit Union: 4.50% APY. Boost Interest Checking: No monthly maintenance fee and no minimum balance requirement; 4.50% APY on balances up to and including $25,000 when monthly requirements are met (15 debit card purchases, one direct deposit, one online/mobile banking login); 0.05% APY on all balances if requirements are not met. Read Sep 7, 2026 on bellco.org. Rates as of 2026-09-05 per the page.
• Colorado Federal Savings Bank: 4.10% APY. 12 Month CD: Online CD; $5,000 minimum balance; early withdrawal penalty of 3 months of interest; no monthly maintenance, ACH or online account fee. Read Sep 7, 2026 on coloradofederalbank.com. Rates as of 2026-07-16 per the page.
• Solera National Bank: 4.07% APY. Money Market High Yield Savings: $1,000 minimum balance to earn the advertised APY; variable rate; interest compounded daily and paid monthly. Read Sep 7, 2026 on solerabank.com. Rates as of 2026-08-12 per the page.
• Meritrust Credit Union – Colorado: 4.00% APY. Money Market: $5 to open; no minimum balance; blended tiers: 4.00% APY on the first $2,000, then 0.25% dividend rate on $2,000.01-$50,000 and up to 1.00% above $250,000. Read Sep 7, 2026 on colorado.meritrust.org. Rates as of 2026-06-18 per the page.
• Bellco Credit Union: 3.90% APY. 12-Month Traditional CD: $500 minimum balance to earn APY; APY and rate fixed after issuance; early withdrawal penalties may apply. Read Sep 7, 2026 on bellco.org. Rates as of 2026-09-05 per the page.
• Colorado Federal Savings Bank: 3.85% APY. High Yield Savings: Online account; $1.00 minimum balance; no qualifications; no monthly maintenance, ACH or online account fee; funds accessible only by ACH, six withdrawals per statement cycle then $25 each; rate variable. Read Sep 7, 2026 on coloradofederalbank.com. Rates as of 2026-07-16 per the page.

Other Colorado cities

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See the full Colorado banks directory for every institution we've verified in the state, plus the underlying methodology.