County ZIP codes · Colorado · FIPS 08123
Weld County, CO ZIP Codes
Weld County, Colorado has 47 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 42 residential and 5 for PO boxes or a single organization. 35 of the residential ones lie mainly in Weld County and 7 mainly in a neighboring county; 16 cross the county line. Median household income ranges from $54,591 in 80631 (Greeley) to $168,725 in 80516 (Erie) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Weld County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $82,742 and $118,297.
They carry 41 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 42 residential ZIP codes in Weld County
35 ZIP codes lie mainly in Weld County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 80634 | Greeley | 65,622 | 1,712 | $83k | $433k | 100% |
| 80504 | Longmont | 63,451 | 671 | $114k | $592k | 59% |
| 80631 | Greeley | 53,722 | 519 | $55k | $337k | 100% |
| 80550 | Windsor | 46,456 | 886 | $126k | $582k | 91% |
| 80516 | Erie | 39,048 | 965 | $169k | $727k | 77% |
| 80620 | Evans | 20,798 | 3,514 | $74k | $342k | 100% |
| 80534 | Johnstown | 20,502 | 427 | $129k | $553k | 80% |
| 80621 | Fort Lupton | 15,060 | 119 | $90k | $463k | 100% |
| 80543 | Milliken | 9,774 | 316 | $105k | $416k | 100% |
| 80615 | Eaton | 9,060 | 86 | $107k | $522k | 100% |
| 80514 | Dacono | 6,721 | 729 | $105k | $489k | 100% |
| 80530 | Frederick | 6,242 | 2,003 | $124k | $466k | 100% |
| 80542 | Mead | 5,155 | 560 | $134k | $615k | 100% |
| 80643 | Keenesburg | 5,119 | 24 | $98k | $475k | 89% |
| 80645 | La Salle | 4,917 | 53 | $88k | $427k | 100% |
| 80651 | Platteville | 4,837 | 51 | $82k | $475k | 100% |
| 80642 | Hudson | 4,466 | 45 | $105k | $620k | 71% |
| 80610 | Ault | 4,132 | 23 | $92k | $425k | 100% |
| 80650 | Pierce | 2,192 | 39 | $57k | $393k | 100% |
| 80644 | Kersey | 2,124 | 13 | $98k | $409k | 100% |
| 80520 | Firestone | 1,140 | 1,935 | $64k | $449k | 100% |
| 80623 | Gilcrest | 1,026 | 1,531 | – | $322k | 100% |
| 80648 | Nunn | 902 | 6 | $94k | $380k | 100% |
| 80624 | Gill | 685 | 9 | $81k | $481k | 100% |
| 80611 | Briggsdale | 557 | 1 | $79k | $415k | 100% |
| 80612 | Carr | 494 | 2 | – | $637k | 85% |
| 80729 | Grover | 350 | 1 | $49k | $350k | 100% |
| 80652 | Roggen | 299 | 2 | $73k | $472k | 100% |
| 80622 | Galeton | 282 | 25 | $139k | – | 100% |
| 80546 | Severance | 271 | 2,420 | $113k | – | 100% |
| 80649 | Orchard | 263 | 1 | – | $527k | 64% |
| 80742 | New Raymer | 204 | 0 | $83k | $285k | 93% |
| 80754 | Stoneham | 141 | 1 | $83k | $239k | 100% |
| 80732 | Hereford | 42 | 24 | $18k | $115k | 100% |
| 80646 | Lucerne | no residents | 0 | – | – | 100% |
Partly in Weld County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 80603 | Brighton | 16,811 | 227 | $118k | $492k | 46% |
| 80513 | Berthoud | 18,271 | 256 | $127k | $601k | 31% |
| 80524 | Fort Collins | 40,030 | 326 | $85k | $561k | 24% |
| 80654 | Wiggins | 3,657 | 16 | $92k | $434k | 8% |
| 80549 | Wellington | 14,325 | 77 | $108k | $476k | 5% |
| 80537 | Loveland | 44,425 | 363 | $86k | $484k | 3% |
| 82082 | Pine Bluffs | 1,891 | 6 | $69k | $354k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
16 ZIP codes of Weld County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Weld | Elsewhere |
|---|---|---|
| 80504 | 59% | Boulder County 41% |
| 80550 | 91% | Larimer County 9% |
| 80537 | 3% | Larimer County 97% |
| 80524 | 24% | Larimer County 76% |
| 80516 | 77% | Boulder County 14%; Broomfield County 9% |
| 80534 | 80% | Larimer County 20% |
| 80513 | 31% | Larimer County 64%; Boulder County 5% |
| 80603 | 46% | Adams County 54% |
| 80549 | 5% | Larimer County 95% |
| 80643 | 89% | Adams County 11% |
| 80642 | 71% | Adams County 29% |
| 80654 | 8% | Morgan County 83%; Adams County 9% |
| 82082 | 2% | Laramie County 71%; Banner County 17%; Kimball County 11% |
| 80612 | 85% | Larimer County 15% |
| 80649 | 64% | Morgan County 36% |
| 80742 | 93% | Morgan County 7% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Weld County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Weld County's ZIP codes use 4 prefixes: 805, 806, 807 and 820.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 805 | Denver, CO (SCF 800) | 15 | 42 |
| 806 | Denver, CO (SCF 800) | 27 | 32 |
| 807 | Denver, CO (SCF 800) | 4 | 33 |
| 820 | Cheyenne, WY (SCF 820) | 1 | 28 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.