Bank Routing Numbers for Oklahoma ZIP 73505 (Lawton/Fort Sill Area)

Routing numbers (ABA/RTN) identify financial institutions, not geographic areas. Multiple banks serve the 73505 ZIP code (Lawton, Fort Sill, Comanche County). Here are routing numbers for major institutions with branches in this area:

Major National/Regional Banks

Critical Verification Steps

1. Check YOUR checks: Bottom left 9-digit number = YOUR account's routing number
2. Online banking: Account details → routing number
3. Call bank: Confirm for your specific account type/location
4. Don't assume: Same bank = different routing numbers by state, account type, acquisition history

Credit Unions in 73505

• Fort Sill Federal Credit Union: 303986269
• Lawton Public Schools FCU: 303986272
• Comanche County Employees FCU: 303986285

Routing numbers are account-specific, not ZIP-specific. Always verify with your own account documents or bank directly before initiating transfers.