FirstBank Colorado Routing Numbers in Colorado

FirstBank Colorado has 47 routing numbers registered in Colorado. When setting up direct deposit, bill pay, or wire transfers, make sure to use the routing number assigned to your specific branch or account — using the wrong one can delay or reject your transaction.

Your routing number appears on the bottom-left of any FirstBank Colorado check, in the FirstBank Colorado mobile app under account details, or by calling FirstBank Colorado at 303-235-1446. For ACH transfers like direct deposits and bill payments, use your state-specific routing number. For domestic wire transfers, FirstBank Colorado may use a different number — always confirm with the bank before sending a wire.

The reason FirstBank Colorado has multiple routing numbers in Colorado is typically due to historical mergers and acquisitions. When banks merge, the acquired institution's routing numbers are often preserved so existing customers don't need to update their direct deposits, autopayments, and vendor relationships. Each routing number is tied to a specific Federal Reserve processing center.

All FirstBank Colorado routing numbers in Colorado can be used for ACH transactions, direct deposits, and electronic payments. They are processed through the Federal Reserve and are verified using the standard ABA checksum algorithm.