County ZIP codes · Colorado · FIPS 08001
Adams County, CO ZIP Codes
Adams County, Colorado has 40 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 34 residential and 6 for PO boxes or a single organization. 20 of the residential ones lie mainly in Adams County and 14 mainly in a neighboring county; 22 cross the county line. Median household income ranges from $61,092 in 80030 (Westminster) to $158,180 in 80023 (Broomfield) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Adams 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 $86,810 and $117,243.
They carry 19 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 34 residential ZIP codes in Adams County
20 ZIP codes lie mainly in Adams County; 14 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 80022 | Commerce City | 61,452 | 772 | $104k | $485k | 100% |
| 80229 | Denver | 55,092 | 4,404 | $84k | $418k | 100% |
| 80011 | Aurora | 53,695 | 2,629 | $74k | $409k | 55% |
| 80233 | Denver | 48,441 | 5,299 | $89k | $465k | 100% |
| 80602 | Brighton | 44,783 | 1,457 | $152k | $667k | 100% |
| 80601 | Brighton | 42,127 | 1,608 | $105k | $498k | 100% |
| 80221 | Denver | 39,718 | 4,367 | $87k | $473k | 88% |
| 80031 | Westminster | 35,584 | 4,222 | $107k | $535k | 90% |
| 80260 | Denver | 34,677 | 7,280 | $62k | $223k | 100% |
| 80241 | Thornton | 34,082 | 5,184 | $110k | $542k | 100% |
| 80234 | Denver | 29,356 | 4,168 | $93k | $530k | 98% |
| 80603 | Brighton | 16,811 | 227 | $118k | $492k | 54% |
| 80030 | Westminster | 15,427 | 5,848 | $61k | $439k | 100% |
| 80640 | Henderson | 13,818 | 1,062 | $117k | $497k | 100% |
| 80019 | Aurora | 7,900 | 282 | $129k | $561k | 100% |
| 80102 | Bennett | 6,690 | 23 | $113k | $543k | 49% |
| 80136 | Strasburg | 6,144 | 29 | $112k | $555k | 69% |
| 80103 | Byers | 3,215 | 9 | $103k | $502k | 67% |
| 80045 | Aurora | 1,676 | 1,875 | $50k | – | 100% |
| 80024 | Dupont | 33 | 1,500 | – | – | 100% |
Partly in Adams County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 80010 | Aurora | 42,439 | 8,258 | $64k | $425k | 49% |
| 80137 | Watkins | 1,689 | 16 | $135k | $669k | 40% |
| 80023 | Broomfield | 27,143 | 1,471 | $158k | $869k | 37% |
| 80642 | Hudson | 4,466 | 45 | $105k | $620k | 29% |
| 80216 | Denver | 17,330 | 1,709 | $82k | $426k | 28% |
| 80701 | Fort Morgan | 16,226 | 26 | $70k | $348k | 26% |
| 80239 | Denver | 44,956 | 4,351 | $98k | $430k | 20% |
| 80003 | Arvada | 35,976 | 5,467 | $92k | $535k | 14% |
| 80105 | Deer Trail | 2,182 | 6 | $80k | $374k | 13% |
| 80643 | Keenesburg | 5,119 | 24 | $98k | $475k | 11% |
| 80654 | Wiggins | 3,657 | 16 | $92k | $434k | 9% |
| 80212 | Denver | 20,746 | 5,823 | $125k | $745k | 7% |
| 80002 | Arvada | 21,270 | 3,274 | $93k | $559k | 4% |
| 80020 | Broomfield | 54,201 | 2,742 | $117k | $602k | 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?
22 ZIP codes of Adams County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Adams | Elsewhere |
|---|---|---|
| 80020 | 2% | Broomfield County 60%; Boulder County 25%; Jefferson County 13% |
| 80011 | 55% | Arapahoe County 45% |
| 80239 | 20% | Denver County 80% |
| 80010 | 49% | Arapahoe County 51% |
| 80221 | 88% | Denver County 12% |
| 80003 | 14% | Jefferson County 86% |
| 80031 | 90% | Jefferson County 10% |
| 80234 | 98% | Broomfield County 2% |
| 80023 | 37% | Broomfield County 63% |
| 80002 | 4% | Jefferson County 96% |
| 80212 | 7% | Denver County 74%; Jefferson County 19% |
| 80216 | 28% | Denver County 72% |
| 80603 | 54% | Weld County 46% |
| 80701 | 26% | Morgan County 74% |
| 80102 | 49% | Arapahoe County 36%; Elbert County 15% |
| 80136 | 69% | Arapahoe County 31% |
| 80643 | 11% | Weld County 89% |
| 80642 | 29% | Weld County 71% |
| 80654 | 9% | Morgan County 83%; Weld County 8% |
| 80103 | 67% | Arapahoe County 33% |
| 80105 | 13% | Arapahoe County 59%; Elbert County 28% |
| 80137 | 40% | Arapahoe County 60% |
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 Adams County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Adams County's ZIP codes use 5 prefixes: 800, 801, 802, 806 and 807.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 800 | Denver, CO (SCF 800) | 17 | 40 |
| 801 | Denver, CO (SCF 800) | 5 | 44 |
| 802 | Denver, CO (SCF 800) | 9 | 67 |
| 806 | Denver, CO (SCF 800) | 8 | 32 |
| 807 | Denver, CO (SCF 800) | 1 | 33 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.