ZIP code · Arlington · Colorado · United States

ZIP code 81021 — Arlington

ZIP code 81021 serves Arlington, Colorado.

Postal code
81021
Single source Value from one source, not cross-checked.
City
Arlington
County
Kiowa FIPS 08061
State
Colorado
Country
United States
Coordinates
38.4068, -103.3697 — precision precise (locality)
View on OpenStreetMap
Population
17 (ZCTA, ACS 5-year)
Population density
0 / sq mi
Land area
292.8 sq mi (758.3 km²) (ZCTA, ACS 5-year)
Per-capita income
$20,853
Median age
77.3
Households
11
Housing units
16
Congressional district
CO-4 (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 93°F), coldest Jan (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F464858667688939083695545
Avg low °F131725334454605848342314
Precip in0.20.20.61.11.41.52.22.20.80.80.30.2

NOAA 1991–2020 climate normals from the nearest station: ORDWAY 21 N (20.1 mi) · NOAA NCEI

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