Weld County, Colorado ZIP Codes
- ZIP records
35 - Cities represented
34 - Sum of listed ZIP population estimates
396,054
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 80634 | Greeley | 65,622 |
| 2 | 80504 | Longmont | 63,451 |
| 3 | 80631 | Greeley | 53,722 |
| 4 | 80550 | Windsor | 46,456 |
| 5 | 80516 | Erie | 39,048 |
| 6 | 80620 | Evans | 20,798 |
| 7 | 80534 | Johnstown | 20,502 |
| 8 | 80621 | Fort Lupton | 15,060 |
| 9 | 80543 | Milliken | 9,774 |
| 10 | 80615 | Eaton | 9,060 |
Cities in Weld County
- Ault
- Briggsdale
- Carr
- Dacono
- Eaton
- Erie
- Evans
- Firestone
- Fort Lupton
- Frederick
- Galeton
- Gilcrest
- Gill
- Greeley
- Grover
- Hereford
- Hudson
- Johnstown
- Keenesburg
- Kersey
- La Salle
- Longmont
- Lucerne
- Mead
- Milliken
- New Raymer
- Nunn
- Orchard
- Pierce
- Platteville
- Roggen
- Severance
- Stoneham
- Windsor
ZIP Directory
- ZIP 80504
- ZIP 80514
- ZIP 80516
- ZIP 80520
- ZIP 80530
- ZIP 80534
- ZIP 80542
- ZIP 80543
- ZIP 80546
- ZIP 80550
- ZIP 80610
- ZIP 80611
- ZIP 80612
- ZIP 80615
- ZIP 80620
- ZIP 80621
- ZIP 80622
- ZIP 80623
- ZIP 80624
- ZIP 80631
- ZIP 80634
- ZIP 80642
- ZIP 80643
- ZIP 80644
- ZIP 80645
- ZIP 80646
- ZIP 80648
- ZIP 80649
- ZIP 80650
- ZIP 80651
- ZIP 80652
- ZIP 80729
- ZIP 80732
- ZIP 80742
- ZIP 80754
Browse all ZIP data for Colorado
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.