ZIP code · Jamestown · Colorado · United States
ZIP code 80455 — Jamestown
ZIP code 80455 serves Jamestown, Colorado.
- Postal code
- 80455Single source Value from one source, not cross-checked.
- City
- Jamestown
- County
- Boulder FIPS 08013
- State
- Colorado
- Country
- United States
- Coordinates
- 40.1155, -105.3886 — precision precise (locality)
View on OpenStreetMap - Population
- 378 (ZCTA, ACS 5-year)
- Population density
- 12 / sq mi
- Land area
- 32.3 sq mi (83.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $175,438
- Per-capita income
- $83,667
- Median age
- 48.1
- Households
- 169
- Housing units
- 228
- Median home value
- $535,700
- Median gross rent
- $1,208 / month
- Congressional district
- CO-2 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Denver (UTC−7 / UTC−6 DST)
Tools: compare 80455 with another ZIP · ZIPs within 25 miles · distance from 80455
Map of ZIP code 80455
Climate — monthly normals
Warmest month Jul (avg high 68°F), coldest Feb (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 28 | 36 | 40 | 50 | 62 | 68 | 66 | 59 | 47 | 35 | 28 |
| Avg low °F | 12 | 12 | 17 | 22 | 29 | 36 | 43 | 41 | 34 | 26 | 19 | 12 |
| Precip in | 2.7 | 2.8 | 3.7 | 4.8 | 3.8 | 1.9 | 3.0 | 2.5 | 2.0 | 2.2 | 2.3 | 2.1 |
NOAA 1991–2020 climate normals from the nearest station: BOULDER 14 W (9.8 mi) · NOAA NCEI
Places in ZIP 80455
- 2 schools
- 1 restaurants & cafés
- 1 parks
- 1 post offices
- 2 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page