20 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 80022 | Commerce City | 58,681 |
| 80229 | Denver | 55,929 |
| 80011 | Aurora | 52,633 |
| 80233 | Denver | 48,694 |
| 80601 | Brighton | 41,062 |
| 80602 | Brighton | 40,886 |
| 80221 | Denver | 40,140 |
| 80031 | Westminster | 36,274 |
| 80260 | Denver | 35,309 |
| 80241 | Thornton | 33,656 |
| 80234 | Denver | 28,796 |
| 80030 | Westminster | 16,891 |
| 80603 | Brighton | 15,617 |
| 80640 | Henderson | 13,599 |
| 80102 | Bennett | 6,375 |
| 80136 | Strasburg | 6,104 |
| 80019 | Aurora | 4,809 |
| 80103 | Byers | 3,184 |
| 80045 | Aurora | 1,627 |
| 80024 | Dupont | 83 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 20 ZCTAs in Adams County, Colorado (US Census).