County · GEOID 08013
Boulder County, CO ZIP codes
23 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Boulder County (GEOID 08013). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 475,083 (23 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
ZIP/ZCTA overlap with Boulder County
Population overlap
Share of each ZIP/ZCTA’s population located within Boulder County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- 800200.3%
- 80025100.0%
Directory county
- 80026100.0%
Directory county
- 80027100.0%
Directory county
- 80301100.0%
Directory county
- 80302100.0%
Directory county
- 80303100.0%
Directory county
- 80304100.0%
Directory county
- 80305100.0%
Directory county
- 80310100.0%
Directory county
- 804033.7%
- 80455100.0%
Directory county
- 80466100.0%
Directory county
- 80471100.0%
Directory county
- 80481100.0%
Directory county
- 80501100.0%
Directory county
- 8050399.9%
Directory county
- 8050452.4%
Directory county
- 80510100.0%
Directory county
- 805130.2%
- 8051636.9%
- 8054068.9%
Directory county
- 80544100.0%
Directory county
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Boulder County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 80020 | Broomfield | Broomfield County | 53,589 | $114,039 |
| 80025 | Eldorado Springs | Boulder County | 101 | $128,145 |
| 80026 | Lafayette | Boulder County | 32,549 | $115,031 |
| 80027 | Louisville | Boulder County | 33,998 | $153,165 |
| 80301 | Boulder | Boulder County | 25,252 | $92,974 |
| 80302 | Boulder | Boulder County | 29,751 | $60,649 |
| 80303 | Boulder | Boulder County | 24,934 | $77,344 |
| 80304 | Boulder | Boulder County | 25,634 | $121,534 |
| 80305 | Boulder | Boulder County | 16,101 | $120,933 |
| 80310 | Boulder | Boulder County | 7,530 | — |
| 80403 | Golden | Jefferson County | 20,789 | $145,315 |
| 80455 | Jamestown | Boulder County | 378 | $175,438 |
| 80466 | Nederland | Boulder County | 3,469 | $84,236 |
| 80471 | Pinecliffe | Boulder County | 0 | — |
| 80481 | Ward | Boulder County | 477 | $92,105 |
| 80501 | Longmont | Boulder County | 43,591 | $77,705 |
| 80503 | Longmont | Boulder County | 36,206 | $118,465 |
| 80504 | Longmont | Boulder County | 61,305 | $109,671 |
| 80510 | Allenspark | Boulder County | 705 | $122,143 |
| 80513 | Berthoud | Larimer County | 16,997 | $117,024 |
| 80516 | Erie | Weld County | 37,107 | $160,590 |
| 80540 | Lyons | Boulder County | 4,620 | $136,109 |
| 80544 | Niwot | Boulder County | 0 | — |
USPS associates these ZIPs with Boulder County
These codes list Boulder County as a primary or acceptable city. They are not used for the ACS headline.