ZIP code
81123
Blanca, CO
81123 covers Blanca in Costilla County, with 726 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 81123. Methodology
ZIP code map of 81123
About ZIP code 81123
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 81123. Not ACS. Methodology
People in 81123
Race
- White407
- Black or African American11
- American Indian or Alaska Native19
- Asian24
- Other race87
- Two or more races179
Hispanic or Latino (any race): 324
Age
- Under 1074
- 10 to 1990
- 20 to 2962
- 30 to 3977
- 40 to 4983
- 50 to 59107
- 60 to 69138
- 70 to 7968
- 80 and older28
Income and housing in 81123
Education
- High school graduate86.2%
- Bachelor's degree17.4%
- Graduate degree3.2%
Places covering 81123
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Blanca44.3%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Costilla County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
55.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 81123
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 601 | |
| 2006 | 605 | |
| 2007 | 655 | |
| 2008 | 590 | |
| 2009 | 617 | |
| 2010 | 582 | |
| 2011 | 960 | 552 |
| 2012 | 881 | 570 |
| 2013 | 998 | 570 |
| 2014 | 1,112 | 550 |
| 2015 | 1,059 | 590 |
| 2016 | 1,010 | 610 |
| 2017 | 1,037 | 620 |
| 2018 | 937 | 580 |
| 2019 | 1,026 | 650 |
| 2020 | 880 | 650 |
| 2021 | 820 | 640 |
| 2022 | 729 | 650 |
| 2023 | 726 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 81123
12 nearest ZIP centroids (any distance)
- 81133Fort Garland13.3 miPop 1,056 · Income $55,179
- 81151Sanford14.3 miPop 1,445 · Income $39,542
- 81101Alamosa16.2 miPop 15,454 · Income $50,020
- 81146Mosca17.2 miPop 779 · Income $69,138
- 81126Chama21.0 miPop 491 · Income $50,776
- 81152San Luis21.3 miPop 1,203 · Income $30,709
- 81141Manassa25.0 miPop 1,195 · Income $56,953
- 81136Hooper25.3 miPop 318 · Income $53,482
- 81055La Veta25.3 miPop 1,582 · Income $53,036
- 81138Jaroso27.0 miPop 27 · Income —
- 81148Romeo28.4 miPop 368 · Income $42,188
- 81134San Luis28.5 miPop 50 · Income —
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 81123, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 81123 FAQ
- What city is ZIP code 81123 in?
- 81123 is in Blanca, CO.
- What county is 81123 in?
- 81123 is in Costilla County.
- What is the median household income in 81123?
- The median household income in 81123 is $37,173.
- Which ZIP codes are near 81123?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 81123.