Residential delivery area · Colorado
ZIP Code 81151: Sanford, CO
ZIP code 81151 uses the postal name Sanford, Colorado and lies mostly in Costilla County (57% of its land) with the rest in Conejos County (Census 2020 ZIP-county file). About 1,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $43,417 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Sanford (under 1%) and San Acacio (under 1%); more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Sanford · its only residential ZIP
- County
- Costilla County (57%); Conejos County (43%)
- Census places
- Sanford (under 1%); San Acacio (under 1%) census-designated place
- Micro area
- Alamosa, CO
- House district
- CO-3 119th Congress
- State
- Colorado
- Time zone
- Mountain
- Land area
- 293.1 sq mi · 6 people per sq mi
Where is ZIP code 81151?
81151 centers on 37.239°, -105.712° and covers 293.1 square miles of land plus 0.2 of water. It borders 7 ZIP codes: 81141, 81123, 81101, 81152, 81140, 81133, 81120.
The map draws ZIP code areas only. For the streets inside 81151, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 81151 compare with the rest of Costilla County?
| Measure | 81151 | In Costilla County | In CO |
|---|---|---|---|
| People (ACS 2020-2024) | 1,716 | 1st of 7 | 290th of 527 |
| Median household income | $43k | not ranked | not ranked |
| Median home value | $189k | 3rd of 4 | 302nd of 311 |
81151's median household income is not ranked: its 90% margin of error (±$23,105) is more than a quarter of the figure ($43,417). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 12% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 81151?
The 2020 Census counted 1,527 people in 81151; the ACS, which samples households over 2020-2024, estimates 1,716. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 1,716±356 (90% margin)
- 2020 Census count
- 1,527
- Households
- 767
- Median age
- 40.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 81151?
Of the 1,716 people the ACS estimates in 81151, 25.8% are under 18 and 21.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (57.9%), then Hispanic or Latino (37.8%).
- Under 1825.8%
- 18 to 6452.3%
- 65 and older21.9%
- White, not Hispanic57.9%
- Hispanic or Latino37.8%
- Other or two or more3.1%
- Asian, not Hispanic1.2%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 81151 earn?
Median household income is $43,417 (ACS 2020-2024).
- Median household income
- $43,417±$23,105
- Income per person
- $25,893
- Below the poverty line
- 14.7%
- Unemployed (of the labor force)
- 7.1%
- Adults 25+ with a bachelor's degree
- 29.3%
- Adjusted gross income per tax return, 2022
- $51,079610 returns; wages 77% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 81151?
- Median home value (owners' estimate)
- $188,500
- Median gross rent
- $1,074
- Homes owned by their occupants
- 76.3%
- Housing units
- 848
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 81151?
15 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction8
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 81151?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 81141 | Manassa | 1,406 | $60k | 11.4 mi |
| 81123 | Blanca | 606 | $37k | 14.3 mi |
| 81101 | Alamosa | 15,550 | $55k | 17.7 mi |
| 81152 | San Luis | 1,244 | $32k | 18.8 mi |
| 81140 | La Jara | 1,893 | $47k | 25.1 mi |
| 81133 | Fort Garland | 1,085 | $46k | 25.6 mi |
| 81120 | Antonito | 1,832 | $48k | 35.2 mi |
| 81138 | Jaroso | 17 | – | 15.6 mi (near) |
| 81148 | Romeo | 387 | $46k | 15.8 mi (near) |
| 81129 | Conejos | 118 | – | 19.4 mi (near) |
| 81126 | Chama | 506 | $53k | 20.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.