| Banking & Credit | Address | |
| 1 | ♠ Capital One Bank | 1080 Old Country Rd Unit C, Riverhead, NY 11901 |
| 2 | ♠ Suffolk Credit Union | 2 Enterprise Zone Dr Route 24, Riverhead, NY 11901 |
| 3 | ♠ Bank of America (with Drive-thru ATM) | 499 Old Country Rd, Riverhead, NY 11901 |
| 4 | ♠ Farm Credit East | 1281 Old Country Rd, Riverhead, NY 11901 |
| 5 | ♠ Island Federal Credit Union | 1071 Old Country Rd, Riverhead, NY 11901 |
| 6 | ♠ Bank of America ATM (Drive-thru) | 499 Old Country Rd, Riverhead, NY 11901 |