ZIP code 81138: Jaroso, CO
81138 is a ZIP code in Jaroso, Colorado, mainly in Costilla County, part of the Alamosa, CO micro area. About 17 people live here.
- Population
- 17
- Median household income
- —
- Typical home value
- —
- Median rent
- —gross, per month
- Median age
- —
- Homeowners
- 100%of occupied homes
Shaded: ZIP code 81138's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 81138 details
| City | Jaroso |
|---|---|
| State | Colorado |
| County | Costilla County |
| Metro area | Alamosa, CO |
| Time zone | Mountain Time (UTC−7), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 20.1 sq mi |
| Population density | 1 people per sq mi |
| Bachelor's degree or higher | 0% of adults 25+ |
| Center coordinates | 37.02302, -105.62739 |
ZIP codes near 81138
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 87524 | Costilla, NM | 6.2 mi | 450 |
| 81152 | San Luis, CO | 14.9 mi | 1,244 |
| 87556 | Questa, NM | 15.1 mi | 3,008 |
| 81151 | Sanford, CO | 15.6 mi | 1,716 |
| 87512 | Amalia, NM | 17.1 mi | 372 |
| 81141 | Manassa, CO | 17.5 mi | 1,406 |
| 87519 | Cerro, NM | 17.9 mi | 798 |
| 81126 | Chama, CO | 18.2 mi | 506 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
About ZIP code 81138
What city is ZIP code 81138?
ZIP code 81138 is in Jaroso, CO, in Costilla County.
What county is ZIP code 81138 in?
81138 is mainly in Costilla County, Colorado.
What is the population of ZIP code 81138?
About 17 people live in ZIP code 81138, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 81138 in?
81138 is in Mountain Time (UTC−7). It observes daylight saving time.