81120 ZIP Code — Antonito, CO

Conejos County, Colorado

ZIP code 81120 is located in Antonito, Colorado, within Conejos County. It covers approximately 893.53 square miles and serves a population of 2,043 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 719.

About ZIP code 81120

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $124,400. Owner-occupancy sits near the national average at 75%.

Median household income is $33,988. Poverty affects 21% of residents, above the national average. SNAP benefit usage at 21% of households reflects economic stress in the area. 46% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with construction as the leading industry. The average commute of 25 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of diabetes (16%) compared to national benchmarks. 16% of residents lack health insurance, above the national average.

Notable community characteristics include disability rates above the national average at 27%.

Overall, ZIP code 81120 reflects a community defined by economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.

2,043

population

893.53

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

81120 ZIP code map

Cities in ZIP code 81120

Below are the cities the US Postal Service accepts for ZIP code 81120. Using any city not on this list may result in mail delivery delays.

City	Status
Antonito	Acceptable
Antonito	Preferred

Nearby ZIP codes

81140 La Jara (9.7 mi)

Demographics updated 05/2026

Population
Total population	2,043
Population density	2 / sq mi
State FIPS	08
County FIPS	021

Geography
Land area	893.53 sq mi
Water area	3.32 sq mi
Latitude	37.1987
Longitude	-106.1984
Timezone	Mountain (MT)
Area code	719

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	73.5%	65.9%	32.5%
$50k – $100k	17.6%	25.6%	31.0%
$100k – $200k	8.9%	7.3%	26.9%
Over $200k	0.0%	1.1%	9.6%

Demographics & statistics

2,043

Population

People per sq mi

50.2

Median age

$33,988

Median household income

$27,072

Per capita income

$124,400

Median home value

$629

Median monthly rent

74.5%

Home ownership

20.9%

Poverty rate

8.8%

Unemployment

1,404

Housing units

21.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

116

20–24

104

25–34

110

35–44

122

45–54

101

103

55–59

60–64

193

65–74

161

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	271	13.3%
18 and over	1,772	86.7%
65 and over	541	26.5%
Median age	50.2 years

Race & ethnicity

White 55.1%

Hispanic or Latino 20.6%

Two or more races 17.4%

Other race 4.2%

American Indian / Alaska Native 2.7%

Group	Count	%
White	1,417	55.1%
Hispanic or Latino	530	20.6%
Two or more races	448	17.4%
Other race	108	4.2%
American Indian / Alaska Native	70	2.7%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	73.5%	65.9%	32.5%
$50k – $100k	17.6%	25.6%	31.0%
$100k – $200k	8.9%	7.3%	26.9%
Over $200k	0.0%	1.1%	9.6%

Under $10k 12.2%

$10k–$15k 6.4%

$15k–$25k 18.2%

$25k–$35k 16.5%

$35k–$50k 14.2%

$50k–$75k 12.7%

$75k–$100k 6.1%

$100k–$150k 5.7%

$150k–$200k 7.1%

$200k+ 1.0%

Range	% of households
Under $10k	12.2%
$10k–$15k	6.4%
$15k–$25k	18.2%
$25k–$35k	16.5%
$35k–$50k	14.2%
$50k–$75k	12.7%
$75k–$100k	6.1%
$100k–$150k	5.7%
$150k–$200k	7.1%
$200k+	1.0%
Median income	$33,988

Housing

Home values

Under $50k 19.0%

$50k–$100k 26.1%

$100k–$150k 13.2%

$150k–$200k 18.4%

$200k–$300k 7.8%

$300k–$500k 11.0%

$500k–$1M 1.8%

$1M+ 2.6%

Housing overview

Metric	Value
Median home value	$124,400
Median rent / month	$629
Owner occupied	74.5%
Renter occupied	25.5%
Vacant	38.0%
Single-family detached	83.0%
Large apartment buildings	0.0%
Mobile homes	11.3%
Median rooms	4.9
Avg household size (owned)	1.95

Year built

Era	%
2020 or later	0.5%
2010–2019	2.3%
2000–2009	12.3%
1990–1999	12.5%
1980–1989	14.8%
1970–1979	11.6%
1960–1969	9.6%
1950–1959	5.8%
1940–1949	6.0%
1939 or earlier	24.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	14.8%
2 bedrooms	30.6%
3 bedrooms	37.6%
4 bedrooms	12.5%
5+ bedrooms	2.9%

Vehicles per household

Vehicles	% of households
No vehicle	9.3%
1 vehicle	25.0%
2 vehicles	37.4%
3 or more	28.2%

Heating fuel

Fuel type	%
Utility gas	33.1%
Electricity	11.7%
Propane / LP gas	23.5%
Fuel oil	0.6%
Wood	28.2%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	340	32.9%
Cohabiting couple	30	2.9%
Male householder, no spouse	372	36.0%
Female householder, no spouse	292	28.2%
Households with children under 18	189	18.3%
Households with seniors (65+)	425	41.1%
Average household size	1.94

Marital status

Status	Male	Female
Never married	42.5%	30.8%
Married	36.5%	41.6%
Separated	1.6%	2.1%
Widowed	2.3%	15.2%
Divorced	17.2%	10.3%

Education

Less than 9th grade 3.4%

Some HS, no diploma 5.4%

HS graduate 36.7%

Some college, no degree 28.4%

Associate's degree 4.5%

Bachelor's degree 14.2%

Graduate / professional 7.3%

Metric	%
HS diploma or higher	91.2%
Bachelor's or higher	21.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	34	12.1%
Kindergarten	22	7.9%
Elementary school	136	48.6%
High school	56	20.0%
College / grad school	32	11.4%

Employment

Industry of employment

Construction 18.3%

Education & healthcare 15.9%

Other services 14.4%

Arts, food & hospitality 13.0%

Agriculture & mining 11.4%

Finance & real estate 7.5%

Retail trade 6.4%

Public administration 5.1%

Manufacturing 4.7%

Professional & management 1.3%

Transportation & utilities 1.2%

Information 0.8%

Occupation

Category	%
Management, business & arts	29.7%
Service	12.9%
Sales & office	16.0%
Natural resources & construction	18.3%
Production & transportation	23.1%

Employment type

Type	%
Private sector	78.2%
Government	13.3%
Self-employed	7.2%
Unpaid family workers	1.3%

Commute

Method	%
Drive alone	61.0%
Carpool	18.6%
Public transit	0.0%
Walk	3.0%
Work from home	16.2%
Other means	1.2%
Avg commute (minutes)	24.5

Poverty

All people 20.9%

Under 18 years 30.6%

18 and over 19.3%

Married-couple families 13.5%

Female-led households 26.8%

Income support

Source	% of households
Social Security	45.5%
Retirement income	28.6%
Supplemental Security	8.0%
Cash public assistance	1.6%
Food stamps / SNAP	20.8%

Health indicators

Condition	%
Obesity	32.3%
High blood pressure	34.2%
High cholesterol	34.7%
Diabetes	16.2%
Heart disease	8.0%
Stroke	3.9%
Asthma	9.6%
Arthritis	26.5%
Kidney disease	4.3%
Pulmonary disease	6.8%
Cancer	6.2%

Behavior / access	%
Smoking	15.4%
Binge drinking	13.9%
No physical activity	29.8%
Less than 7 hrs sleep	29.9%
Depression	17.2%
Fair or poor health	22.2%
Poor mental health	13.5%
Poor physical health	13.9%
No health insurance	27.2%
Visited doctor (checkup)	69.3%
Visited dentist	52.2%
Cholesterol screening	90.0%
Teeth loss	15.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	159	9.0%

Disability	%
Any disability	27.1%
Under 18	10.0%
18–64 years	21.7%
65 and over	47.5%

Health insurance coverage

Type	%
Private insurance	42.8%
Public insurance	61.3%
No insurance	15.8%
Uninsured under 19	2.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,987	97.3%
Spanish	133	6.7%
Other Indo-European	133	6.7%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,019	98.8%
Born in same state	1,987	97.3%
Born in different state	1,448	70.9%
Foreign born	32	1.6%
Naturalized citizen	24	1.2%
Not a US citizen	24	100.0%

Ancestry

Ancestry	Count	%
Italian	149	7.3%
French	100	4.9%
Arab	77	3.8%
English	30	1.5%

Ancestry	Count	%
Dutch	25	1.2%
Polish	10	0.5%
German	8	0.4%

Technology access

Metric	% of households
Computer access	50.6%
Internet access	80.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 81120

What city is ZIP code 81120 in?

ZIP code 81120 is primarily assigned to Antonito, Colorado.

What county is ZIP code 81120 in?

ZIP code 81120 falls within Conejos County, Colorado.

Does ZIP code 81120 have an older population?

27% of residents in ZIP code 81120 are 65 or older, above the national average of ~17%.

What is the poverty rate in ZIP code 81120?

21% of residents in ZIP code 81120 live below the poverty line, above the national average.

Does ZIP code 81120 have a large retiree population?

46% of households in ZIP code 81120 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 81120?

The median home value in ZIP code 81120 is $124,400.

What timezone is ZIP code 81120 in?

ZIP code 81120 observes the MST timezone.