Postal Codes

81021 ZIP Code

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ZIP code 81021 covers Arlington, Colorado.

Median age
77.338.6 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time

Where 81021 is

Arlington, Colorado — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Median age77.3
Housing

American Community Survey 2019–2023 five-year estimates

Median year built1938
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 89.5% of US census tracts
FEMA ratingRelatively High
Expected annual loss87.6 out of 100
Community resilience24 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought99.3Relatively High at its worst in this ZIP code
Hail99Very High at its worst in this ZIP code
Strong wind97.5Very High at its worst in this ZIP code
Winter weather93.8Very High at its worst in this ZIP code
Wildfire93.7Relatively Moderate at its worst in this ZIP code
Cold wave86.2Relatively High at its worst in this ZIP code
Lightning85.5Relatively High at its worst in this ZIP code
River flooding78.3Relatively High at its worst in this ZIP code
Tornado76.7Relatively High at its worst in this ZIP code
Landslide46.3Very Low at its worst in this ZIP code
Earthquake39.7Relatively Low at its worst in this ZIP code
Ice storm29.6Relatively Low at its worst in this ZIP code
Heat wave3.5Very Low at its worst in this ZIP code
Compared with Colorado and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPColoradoUnited States
Median household income$92,470$78,538
Income per person$50,489$43,289
Poverty rate9.4%12.4%
Median home value$502,200$303,400
Median gross rent$1,693$1,348
Homeownership66.3%65%
Bachelor's degree or higher44.7%35%
Unemployment rate4.5%5.2%
Works from home18.8%13.5%
Born outside the US9.6%13.9%
Median age77.337.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationORDWAY 21 N, CO US32.3 km away
Rain in a year12 in
Snow in a year17 in

Average high and low by month

January45.8°F / 13.1°F0.21 in rain, 2.9 in snow
February48.4°F / 16.5°F0.24 in rain, 2.9 in snow
March58.4°F / 24.6°F0.63 in rain, 3.6 in snow
April66°F / 33.2°F1.13 in rain, 2.1 in snow
May76.1°F / 44°F1.44 in rain
June87.7°F / 54.2°F1.46 in rain
July93.1°F / 59.7°F2.22 in rain
August89.6°F / 57.6°F2.2 in rain
September83°F / 48°F0.82 in rain
October69.4°F / 34.3°F0.75 in rain, 0.8 in snow
November55.2°F / 22.5°F0.31 in rain, 1.8 in snow
December45°F / 14.3°F0.17 in rain, 2.6 in snow
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Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket100% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Kiowa County School District No. RE-167.7% of this ZIP code's land area
Karval School District RE-2332.3% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability52more vulnerable than 52% of US census tracts
Socioeconomic status47more vulnerable than 47% of US census tracts
Household characteristics65more vulnerable than 65% of US census tracts
Racial and ethnic minority status11more vulnerable than 11% of US census tracts
Housing type and transport60more vulnerable than 60% of US census tracts
Walkability6.1 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

81045 Haswell, CO19.6 km away
81076 Sugar City, CO30.8 km away
81030 Cheraw, CO35.5 km away
80823 Karval, CO35.8 km away
81063 Ordway, CO43.5 km away
81033 Crowley, CO48.6 km away
81034 Crowley, CO48.6 km away
81077 Swink, CO49.1 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Kiowa County67.7% of this ZIP code's land area
Lincoln County32.3% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area292.78 sq mi
Water area3.94 sq mi
Latitude, longitude38.4068, -103.3697

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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