Postal Codes

81120 ZIP Code

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ZIP code 81120 covers Antonito, Colorado, with a population of about 1,976 and a median household income of $39,423.

Population
1,9762 per square mile
Median age
4910.3 points above the US average
Median household income
$39,42357% below the Colorado median
Poverty rate
17.5%5.1 points above the US average
Typical home value
$228,046up 13.9% in five years
Median rent
$80353% below the Colorado median
Degree or higher
21.1%13.9 points below the US average
Homeownership
72.8%7.8 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
36

Where 81120 is

Antonito, 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

Population1,976
Median age49
Family households50.4%
Born outside the US1.7%
Speaks a language other than English at home31.2%
White (non-Hispanic)36.5%
Black (non-Hispanic)0.1%
Asian (non-Hispanic)0%
Hispanic or Latino62.8%
Veterans8.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$39,423
Income per person$29,960
Poverty rate17.5%
Households on SNAP or cash assistance20%

Household income distribution

Under $10k8.5%
$10–15k3.9%
$15–20k9.2%
$20–25k6.8%
$25–30k10.5%
$30–35k6.0%
$35–40k5.7%
$40–45k3.0%
$45–50k6.7%
$50–60k6.2%
$60–75k8.9%
$75–100k6.5%
$100–125k3.5%
$125–150k3.4%
$150–200k10.0%
$200k or more1.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed860
Mean adjusted gross income$53,866
Returns declaring $200,000 or more2.3%
Returns, under $25k34.9%
Returns, $25k–$50k31.4%
Returns, $50k–$75k14.0%
Returns, $75k–$100k8.1%
Returns, $100k–$200k9.3%
Returns, $200k or more2.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$134,800
Median gross rent$803
Rent as a share of household income24.4%
Owner-occupied72.8%
Vacant homes42.2%
Median year built1974

What the homes are

Detached house85.8%
Attached house2.2%
2 to 4 units2.4%
5 to 19 units0.5%
Mobile home9.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$228,046as of 2026-07
Typical home value, 1 yearup 3.9%
Typical home value, 5 yearsup 13.9%
Typical home value, 10 yearsup 67.2%
Typical home value since 2000
201020182026$228,046$102,316

$102,316 in 2010 to $228,046 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate8%
Bachelor's degree or higher21.1%
High school diploma or higher93.3%
Works from home16.2%
Drives to work alone61.6%
Takes public transport0%
Commutes 45 minutes or more5.6%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity32% 1.4 pts below the national average of 33.4%
Diagnosed diabetes17.2% 5.2 pts above the national average of 12%
Currently smokes12.3% 0.9 pts below the national average of 13.2%
High blood pressure37.3% 3.2 pts above the national average of 34.1%
Fair or poor general health26.7% 6.4 pts above the national average of 20.3%
No health insurance (18–64)22.2% 10.9 pts above the national average of 11.3%
Depression17.8% 4.1 pts below the national average of 21.9%
No leisure-time physical activity29.7% 4.3 pts above the national average of 25.4%
Arthritis29.8% 4.7 pts above the national average of 25.1%
Binge drinking12.8% 3.2 pts below the national average of 16%
Taking blood pressure medication77.4% 2.7 pts above the national average of 74.7%
Cancer (non-skin)8.5% 0.8 pts above the national average of 7.7%
Current asthma9.8% 0.6 pts below the national average of 10.4%
Coronary heart disease8.8% 2.6 pts above the national average of 6.2%
Routine check-up in past year75.3% 1.4 pts below the national average of 76.7%
Cholesterol screening87.9% 2 pts above the national average of 85.9%
Cognitive disability15.3% 0.5 pts above the national average of 14.8%
Colorectal screening59% 5.3 pts below the national average of 64.3%
COPD7.2% 0.6 pts above the national average of 6.6%
Visited a dentist52.9% 8.4 pts below the national average of 61.3%
Any disability37.2% 6.5 pts above the national average of 30.7%
Lacks emotional support24.8% same as the national average of 24.8%
Food insecurity17.4% same as the national average of 17.1%
Received food stamps12.6% 1.7 pts below the national average of 14.3%
Hearing disability10.2% 3.5 pts above the national average of 6.7%
High cholesterol39.4% 3.2 pts above the national average of 36.2%
Housing insecurity14.7% 0.9 pts above the national average of 13.8%
Independent living disability8.8% same as the national average of 8.4%
Lacks transport8.8% same as the national average of 9.2%
Loneliness29% 5.4 pts below the national average of 34.4%
Mammography use67.8% 8.1 pts below the national average of 75.9%
Poor mental health (14+ days)13.9% 2.9 pts below the national average of 16.8%
Mobility disability19.4% 5.4 pts above the national average of 14%
Poor physical health (14+ days)17.2% 3.7 pts above the national average of 13.5%
Self-care disability5.6% 1.6 pts above the national average of 4%
Utility shut-off threat10% 1.2 pts above the national average of 8.8%
Sleeps under 7 hours33% 3.4 pts below the national average of 36.4%
Stroke4.6% 1.2 pts above the national average of 3.4%
All natural teeth lost13.2% same as the national average of 13%
Vision disability8.7% 3.1 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments36
People employed259
Annual payroll$14,180,000
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 93.9% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss88.2 out of 100
Community resilience1.8 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.

Drought98.1Relatively High at its worst in this ZIP code
Lightning97Very High at its worst in this ZIP code
Landslide93.2Relatively Moderate at its worst in this ZIP code
River flooding92.9Very High at its worst in this ZIP code
Cold wave91.8Very High at its worst in this ZIP code
Wildfire91.7Relatively High at its worst in this ZIP code
Winter weather85.9Relatively High at its worst in this ZIP code
Avalanche80.5Relatively Moderate at its worst in this ZIP code
Earthquake72.6Relatively Low at its worst in this ZIP code
Hail67.6Relatively Moderate at its worst in this ZIP code
Tornado36.2Relatively Low at its worst in this ZIP code
Ice storm25.1Very Low at its worst in this ZIP code
Strong wind19.7Relatively Low at its worst in this ZIP code
Heat wave10.4Very 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$39,423$92,470$78,538
Income per person$29,960$50,489$43,289
Poverty rate17.5%9.4%12.4%
Median home value$134,800$502,200$303,400
Median gross rent$803$1,693$1,348
Homeownership72.8%66.3%65%
Bachelor's degree or higher21.1%44.7%35%
Unemployment rate8%4.5%5.2%
Works from home16.2%18.8%13.5%
Born outside the US1.7%9.6%13.9%
Median age4937.538.7
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 stationMANASSA, CO US12.9 km away
Rain in a year8 in
Snow in a year30 in

Average high and low by month

January34.9°F / 5°F0.21 in rain, 4.6 in snow
February41.3°F / 12.5°F0.22 in rain, 3 in snow
March52.6°F / 20.9°F0.43 in rain, 5.5 in snow
April60.4°F / 27.9°F0.53 in rain, 3.6 in snow
May69.1°F / 36.5°F0.59 in rain, 0.4 in snow
June78.6°F / 44°F0.4 in rain
July80.6°F / 49.2°F1.08 in rain
August78.6°F / 47.2°F1.58 in rain
September73.3°F / 39.7°F1.12 in rain
October63.1°F / 28.2°F0.67 in rain, 2.5 in snow
November48.8°F / 17°F0.49 in rain, 4.5 in snow
December35.8°F / 6.1°F0.43 in rain, 5.6 in snow
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 supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket8% of this ZIP code's area
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 3 school districts, so the address decides which one, not the ZIP code.

South Conejos School District RE-1056.6% of this ZIP code's land area
North Conejos School District RE-1J35.5% of this ZIP code's land area
Mesa Vista Consolidated Schools7.9% 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 vulnerability82more vulnerable than 82% of US census tracts
Socioeconomic status67more vulnerable than 67% of US census tracts
Household characteristics84more vulnerable than 84% of US census tracts
Racial and ethnic minority status68more vulnerable than 68% of US census tracts
Housing type and transport81more vulnerable than 81% of US census tracts
Walkability4.5 out of 20Least walkable
Nearby ZIP codes

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

81129 Conejos, CO2 km away
81148 Romeo, CO10.7 km away
81141 Manassa, CO14 km away
81151 Sanford, CO22.5 km away
81140 La Jara, CO23 km away
81124 Capulin, CO23 km away
87524 Costilla, NM36.7 km away
81138 Jaroso, CO37.9 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.

Conejos County92.1% of this ZIP code's land area
Rio Arriba County7.9% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area893.53 sq mi
Water area3.32 sq mi
Population density2 people per sq mi
Latitude, longitude37.0855, -106.0379

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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