Costilla, New Mexico Demographics & Population 2026
During the 2020–2024 ACS period, Costilla, New Mexico had a total population of 450, the 267th largest community in New Mexico. The poverty rate is 7.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Only 0.0% of adults have a bachelor's degree, well below the national average of 35.7%.
Costilla Quick Facts
How Costilla Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 498 | 450 | -9.6% |
How Costilla Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 63 | National average: 61
Education
Educational Attainment (Adults 25+)
Costilla Rankings in New Mexico
Explore New Mexico Rankings
Other Cities in Taos County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Taos | 6,458 | $47,304 | 13.7% | $445,900 |
| Ranchos de Taos | 2,536 | N/A | 10.2% | $349,700 |
| Questa | 2,466 | $47,308 | 17.5% | $233,500 |
| Arroyo Seco | 2,112 | $62,348 | 9.0% | $603,500 |
| Taos Pueblo | 1,129 | $39,375 | 49.1% | $371,600 |
| Talpa | 955 | $49,167 | 13.2% | $387,300 |
| Peñasco | 546 | $45,833 | 18.9% | $229,300 |
| Rio Lucio | 485 | $45,000 | 6.2% | $180,100 |
| Red River | 450 | $22,384 | 8.9% | $427,500 |
| Chamisal | 300 | $37,375 | 19.9% | $221,800 |
Cities Similar to Costilla
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Red River | 450 | $22,384 | $427,500 | 29.4% | 8.9% |
| Eagle Nest | 451 | $57,692 | $301,200 | 28.2% | 13.3% |
| Canova | 452 | N/A | N/A | 70.7% | 0.0% |
| Melrose | 447 | $32,750 | $78,500 | 7.1% | 38.7% |
| El Duende | 454 | $124,081 | N/A | 0.4% | 0.4% |
A note before these figures: with a population of 450, Costilla's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Costilla is a small community located in New Mexico, within Taos County. The total population is 450. It ranks as the 267th most populous out of 495 Census-designated places in New Mexico.
Age Demographics
The median age in Costilla is 35.4 years. This is 10% lower than the state median of 39.4 years.
Economy, Income & Housing
The poverty rate stands at 7.8%. This is 56% lower than the state poverty rate of 17.8%. The survey records no unemployed residents in Costilla, which reflects the size of the sample rather than a labor market without joblessness. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 43% higher than the state average of 70.0%.
Race & Ethnicity
Every resident counted in Costilla was recorded as Hispanic or Latino. A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.
Education
0.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.
Data Sources & Methodology
All demographic data for Costilla, New Mexico is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New Mexico state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 495 Census-designated places in New Mexico. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Costilla, New Mexico?
Costilla, New Mexico has a population of 450 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Costilla, NM?
The Census Bureau does not publish a reliable median household income estimate for Costilla — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Costilla, NM?
The poverty rate in Costilla is 7.8%. This means approximately 35 residents live below the federal poverty line.
What is the racial makeup of Costilla, New Mexico?
Costilla's population is 0.0% White, 0.0% Black, 100.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Costilla, NM?
The Census Bureau does not publish a reliable median home value estimate for Costilla — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Costilla, New Mexico?
0.0% of adults (25+) in Costilla hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.