ZIP code · South Fork · Colorado · United States

ZIP code 81154 — South Fork

ZIP code 81154 serves South Fork, Colorado.

Postal code
81154
Single source Value from one source, not cross-checked.
City
South Fork
County
Rio Grande FIPS 08105
State
Colorado
Country
United States
Coordinates
37.6725, -106.6125 — precision precise (locality)
View on OpenStreetMap
Population
1,259 (ZCTA, ACS 5-year)
Population density
3 / sq mi
Land area
375 sq mi (971.3 km²) (ZCTA, ACS 5-year)
Median household income
$74,283
Per-capita income
$41,439
Median age
51.3
Households
559
Housing units
1,938
Median home value
$409,000
Median gross rent
$919 / 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
719 (from the nearest rate centre)
Telephone 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.

Climate — monthly normals

Warmest month Jul (avg high 81°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F354052596878817973634936
Avg low °F7132127364450494030189
Precip in0.40.40.70.80.80.61.51.71.10.80.50.5

NOAA 1991–2020 climate normals from the nearest station: DEL NORTE 3ENE (16.7 mi) · NOAA NCEI

Places in ZIP 81154

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