20 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 80022 | Commerce City | 61,452 |
| 80229 | Denver | 55,092 |
| 80011 | Aurora | 53,695 |
| 80233 | Denver | 48,441 |
| 80602 | Brighton | 44,783 |
| 80601 | Brighton | 42,127 |
| 80221 | Denver | 39,718 |
| 80031 | Westminster | 35,584 |
| 80260 | Denver | 34,677 |
| 80241 | Thornton | 34,082 |
| 80234 | Denver | 29,356 |
| 80603 | Brighton | 16,811 |
| 80030 | Westminster | 15,427 |
| 80640 | Henderson | 13,818 |
| 80019 | Aurora | 7,900 |
| 80102 | Bennett | 6,690 |
| 80136 | Strasburg | 6,144 |
| 80103 | Byers | 3,215 |
| 80045 | Aurora | 1,676 |
| 80024 | Dupont | 33 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 20 ZCTAs in Adams County, Colorado (US Census).