ZIP Codes of Conejos County, CO

Population & People
Population & People
Total Population
7,611
Household Income
Household Income
Median Income
$55,258
Housing
Housing
Total Housing Units
4,217
Business & Economy
Business & Economy
Total Businesses
119
Employment
Employment
Employment Rate
57.02%
Education
Education
Bachelor's Degree+
25.97%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 7 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:7 ZIP Codes (3 Standard, 4 PO Box, 0 Unique) [See All]
Area Code:719
Timezone:Mountain (GMT -07:00)
Local Time:2:11:32 PM
Population:7,611 [See All]
FIPS:08021
CBSA:Alamosa, CO
Land Area:1,429 sq mi
Water Area:4 sq mi
Coordinates:37.1949, -106.0250
Quick Link:
https://www.zip-codes.com/county/co-conejos.asp
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Colorado's #40 most populous county
7,611 residents across 7 ZIPs — #40 of 65 Colorado counties.

Standout ZIPs in this County


Most Populous
La Jara · 1,893 people
24.9% of county total
Highest Income
Capulin · $88,793 median
1.6× county average
Largest Land Area
Antonito · 899.0 sq mi
Spans the most ground
Fastest Growth
Sanford · 26.0% (10-yr)
1,362 → 1,716 residents
Most Educated
La Jara · 34.1% bachelor's+
435 of 1,277 adults 25+

Things worth knowing about Conejos County


7,611 residents live across 7 ZIPs covering 1,429 sq mi, served by 7 distinct USPS-recognized cities.

Population moved from 8,196 to 7,611 from 2014 to 2024 — a -7.1% change. 3 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 81124 (Capulin, $88,793 median) and poorest ZIP 81151 (Sanford, $43,417) are 22.3 miles apart — a 2.0× income gap across local geography.

Median home values vary 3.0× across this county — from $79,300 in 81124 (Capulin) to $239,700 in 81140 (La Jara).

Density varies 255× across the county — from 2 people/sq mi in 81120 (Antonito) to 519 in 81148 (Romeo).

Educational attainment ranges from 15.8% bachelor's+ in 81148 (Romeo) to 34.1% in 81140 (La Jara) — the breadth of educational profiles across the area.

Within Colorado, this is the #40 most populous of 65 counties and ranks #53 for median household income .

Weighted by population, the typical household earns about $49,976 across the county — reflecting what a typical resident sees, not a simple ZIP average.

26.0% of adults age 25+ hold a bachelor's degree or higher (1,360 of 5,236 reporting).

3 Standard delivery, 4 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Conejos County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
1,429
square miles
Avg density
5.3
people per sq mi
Population
7,611
across 7 ZIPs
Antonito
899.0 sq mi
1,832 residents
Sanford
282.5 sq mi
1,716 residents
La Jara
227.2 sq mi
1,893 residents

Population decline

Conejos County lost 7.1% of residents between 2014 and 2024. ZIPs that shed the largest share:

La Jara
-30.4%
2,718 → 1,893 residents
Antonito
-10.7%
2,052 → 1,832 residents

All ZIP Codes in Conejos County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
81140La JaraStandard1,893$46,781227.2-30.4%
81120AntonitoStandard1,832$47,546899.0-10.7%
81151SanfordStandard1,716$43,417282.526.0%
81141ManassaPO Box1,406$59,53913.9-2.1%
81148RomeoPO Box387$45,4690.715.5%
81124CapulinPO Box259$88,7935.2144.3%
81129ConejosPO Box1180.4-36.9%

Adjacent & Nearby Counties