ZIP code · Antonito · Colorado · United States
ZIP code 81120 — Antonito
ZIP code 81120 serves Antonito, Colorado.
- Postal code
- 81120Single source Value from one source, not cross-checked.
- City
- Antonito
- County
- Conejos FIPS 08021
- State
- Colorado
- Country
- United States
- Coordinates
- 37.0855, -106.0379 — precision precise (locality)
View on OpenStreetMap - Population
- 1,976 (ZCTA, ACS 5-year)
- Population density
- 2 / sq mi
- Land area
- 893.5 sq mi (2,314.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $39,423
- Per-capita income
- $29,960
- Median age
- 49
- Households
- 930
- Housing units
- 1,609
- Median home value
- $134,800
- Median gross rent
- $803 / month
- Congressional district
- CO-3 (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)
- Area code
- 719Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 81120 with another ZIP · ZIPs within 25 miles · distance from 81120
Map of ZIP code 81120
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 5°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 41 | 53 | 60 | 69 | 79 | 81 | 79 | 73 | 63 | 49 | 36 |
| Avg low °F | 5 | 13 | 21 | 28 | 37 | 44 | 49 | 47 | 40 | 28 | 17 | 6 |
| Precip in | 0.2 | 0.2 | 0.4 | 0.5 | 0.6 | 0.4 | 1.1 | 1.6 | 1.1 | 0.7 | 0.5 | 0.4 |
NOAA 1991–2020 climate normals from the nearest station: MANASSA (8.0 mi) · NOAA NCEI
Places in ZIP 81120
- 2 schools
- 1 supermarkets
- 3 restaurants & cafés
- 1 parks
- 1 playgrounds
- 6 gyms & sports centres
- 1 libraries
- 3 places of worship
- 1 gas stations
- 1 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