County ProfileCO
Weld County
Population: 328,981 · 39 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
328,981
People
Median age
35.3
Housing
Total households
124,287
Income
Median household income
$97,097
Housing
Total housing units
129,637
Employment
Employment rate
66.3%
Education
Bachelor’s degree or higher
33.2%
Healthcare
Insured population
92%
County details
Local time 02:45:06(MT)| Name | Weld |
|---|---|
| Total ZIP codes | 39total |
| ZIP codes (by type) | 29 Standard7 PO Box3 Unique |
| Area code | 303, 720, 970, 983 |
| Timezone | Mountain Time (MT) |
| Coordinates | 40.555961, -104.383666 |
| Land area | 3,985 sq miles(10,321 km²) |
Map of Weld county, Colorado with ZIP codes
Cities and Communities in Weld County
Compare the largest cities in Weld County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Greeley | 108,795 | $69,881 | 6ZIPs |
| Windsor | 32,716 | $127,028 | 2ZIPs |
| Erie | 30,038 | $173,349 | 1ZIPs |
| Evans | 22,165 | $75,563 | 1ZIPs |
| Johnstown | 17,303 | $128,995 | 1ZIPs |
| Firestone | 16,381 | $120,150 | 1ZIPs |
| Frederick | 14,513 | $129,460 | 1ZIPs |
| Berthoud | 10,332 | $119,385 | 1ZIPs |
| Milliken | 8,386 | $107,500 | 1ZIPs |
| Fort Lupton | 7,955 | $80,889 | 1ZIPs |
| Severance | 7,683 | $124,572 | 1ZIPs |
| Dacono | 6,297 | $104,559 | 1ZIPs |
| Eaton | 5,802 | $106,294 | 1ZIPs |
| Mead | 4,781 | $125,357 | 1ZIPs |
| Platteville | 2,955 | $74,500 | 1ZIPs |
| La Salle | 2,359 | $95,833 | 1ZIPs |
| Ault | 1,887 | $95,049 | 1ZIPs |
| Hudson | 1,651 | $81,250 | 1ZIPs |
| Kersey | 1,495 | $68,281 | 1ZIPs |
| Keenesburg | 1,250 | $83,950 | 1ZIPs |
| Pierce | 1,097 | $61,250 | 1ZIPs |
| Gilcrest | 1,029 | — | 1ZIPs |
| Gill | 968 | — | 1ZIPs |
| Carr | 669 | — | 1ZIPs |
| Roggen | 563 | — | 1ZIPs |
| Nunn | 504 | $111,875 | 1ZIPs |
| New Raymer | 329 | — | 1ZIPs |
| Grover | 157 | — | 1ZIPs |
| Stoneham | 157 | — | 1ZIPs |
| Briggsdale | 134 | — | 1ZIPs |
| Galeton | 121 | — | 1ZIPs |
| Hereford | 25 | — | 1ZIPs |
| Lucerne | 6 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Weld County
Review the most populated postal areas across Weld County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 80634 | Greeley | $82,742 | 65,980 |
| 80631 | Greeley | $54,591 | 52,336 |
| 80550 | Windsor | $126,132 | 38,909 |
| 80516 | Erie | $168,725 | 34,376 |
| 80620 | Evans | $73,590 | 20,975 |
| 80534 | Johnstown | $129,024 | 18,785 |
| 80513 | Berthoud | $126,726 | 15,824 |
| 80621 | Fort Lupton | $90,055 | 13,343 |
| 80615 | Eaton | $107,308 | 9,486 |
| 80543 | Milliken | $104,574 | 8,696 |
| 80514 | Dacono | $104,494 | 6,350 |
| 80530 | Frederick | $124,000 | 5,428 |
| 80651 | Platteville | $81,586 | 4,987 |
| 80542 | Mead | $133,500 | 4,841 |
| 80645 | La Salle | $87,609 | 4,245 |
| 80642 | Hudson | $105,225 | 4,139 |
| 80643 | Keenesburg | $97,766 | 3,599 |
| 80610 | Ault | $92,153 | 3,570 |
| 80644 | Kersey | $97,847 | 3,006 |
| 80520 | Firestone | $63,529 | 1,933 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS