Census tract · Harper County
Census Tract 9521, Harper County, Oklahoma
Census Tract 9521, GEOID 40059952100, in Harper County, Oklahoma, partly within Buffalo and Selman. 1,532 residents in the ACS 2020-2024 5-year estimates (±187); the 2020 Census counted 1,460.
Residents, 2020-2024
1,532
±187 (90% margin)
2020 Census count: 1,460
Median household income
$74,417
±$12,272 (90% margin)
Harper County: $64,053
Median home value
$92,400
±$6,487 (90% margin)
Harper County: $99,200
Median gross rent
not published
Harper County: $828
Where is Census Tract 9521?
Census Tract 9521 is one of 2 census tracts in Harper County, Oklahoma. It covers 587.57 square miles of land, 2 residents per square mile in 2020. Its GEOID, 40059952100, names it uniquely (how tract numbers and GEOIDs work).
5 census tracts border Census Tract 9521: Tract 9522 ($59,375), Tract 9542.01 in Woods County ($54,255), Tract 9542.02 in Woods County ($40,234), Tract 9531 in Woodward County ($66,125) and Tract 9532 in Woodward County ($77,847). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 9521?
The 2020-2024 American Community Survey puts Census Tract 9521's population at 1,532 (±187) in 599 households; the 2020 Census counted 1,460 residents and 782 housing units.
| Measure | Tract 9521 | Harper County |
|---|---|---|
| Total population | 1,532 ±187 | 3,203 |
| Households | 599 ±80 | 1,333 |
| Average household size | 2.46 ±0.25 | 2.36 |
| Housing units | 800 ±62 | 1,714 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 9521?
The median resident of Census Tract 9521 is 39.7 years old; 25.8% are under 18 and 20.0% are 65 or older. The largest group is non-Hispanic white residents at 74.3%, then Hispanic or Latino residents (of any race) at 19.5%.
| Measure | Tract 9521 | Harper County |
|---|---|---|
| Median age | 39.7 ±2.8 | 40.9 |
| Under 18 years | 25.8% ±3.8 pts | 23.8% |
| 65 years and over | 20.0% ±3.8 pts | 20.0% |
| Hispanic or Latino (any race) | 19.5% ±8.3 pts | 24.5% |
| White alone, not Hispanic | 74.3% ±8.0 pts | 70.8% |
| Black or African American alone, not Hispanic | 0.1% ±0.3 pts | 0.1% |
| Asian alone, not Hispanic | 0.1% ±0.2 pts | 0.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.3% ±0.4 pts | 1.4% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.6 pts | 0.0% |
| Two or more races, not Hispanic | 5.6% ±2.2 pts | 3.2% |
| Some other race alone, not Hispanic | 0.0% ±1.6 pts | 0.0% |
| Born outside the United States | 8.0% ±5.8 pts | 13.0% |
| Speak a language other than English at home (age 5+) | 15.7% ±10.0 pts | 21.9% |
| Civilian veterans (age 18+) | 7.7% ±3.1 pts | 6.4% |
| With a disability | 10.7% ±3.1 pts | 14.6% |
| No health insurance coverage | 8.9% ±7.1 pts | 14.1% |
| High school graduate or higher (age 25+) | 87.4% ±8.2 pts | 88.4% |
| Bachelor's degree or higher (age 25+) | 22.9% ±7.8 pts | 29.3% |
| Graduate or professional degree (age 25+) | 5.1% ±2.9 pts | 4.9% |
| Lived in the same house a year earlier | 87.5% ±8.2 pts | 88.0% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 9521 earn?
Half of the 599 households in Census Tract 9521 earn less than $74,417 a year (±$12,272), against $64,053 across Harper County.
| Measure | Tract 9521 | Harper County |
|---|---|---|
| Median household income | $74,417 ±$12,272 | $64,053 |
| Mean household income | $83,549 ±$10,331 | $76,094 |
| Per capita income | $29,771 ±$3,369 | $30,811 |
| People below the poverty line | 4.0% ±3.6 pts | 13.1% |
| Children under 18 below the poverty line | 2.5% ±4.0 pts | 15.7% |
| Households receiving SNAP | 3.5% ±3.5 pts | 4.4% |
| Households with a computer | 99.0% ±1.3 pts | 96.5% |
| Households with a broadband subscription | 80.5% ±8.8 pts | 85.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 9521?
Owners occupy 88.5% of Census Tract 9521's occupied homes and renters 11.5%. The median owner-occupied home is valued at $92,400 by its owner (±$6,487).
| Measure | Tract 9521 | Harper County |
|---|---|---|
| Median home value (owner-occupied) | $92,400 ±$6,487 | $99,200 |
| Renters paying 35% or more of income on rent | 0.0% ±32.3 pts | 5.0% |
| Median monthly owner costs, with a mortgage | $1,209 ±$129 | $1,273 |
| Owner-occupied homes | 88.5% ±7.1 pts | 83.6% |
| Renter-occupied homes | 11.5% ±7.1 pts | 16.4% |
| Housing units | 800 ±62 | 1,714 |
| Single-family detached homes | 87.3% ±5.3 pts | 86.6% |
| Mobile homes | 9.6% ±4.6 pts | 10.9% |
| Built 2020 or later | 0.0% ±3.1 pts | 1.3% |
| Built 2010 to 2019 | 2.0% ±2.0 pts | 2.9% |
| Built 1939 or earlier | 12.8% ±5.5 pts | 16.6% |
| Households with no vehicle | 3.0% ±4.4 pts | 1.4% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 9521 get to work?
86.9% of Census Tract 9521's workers drive alone. The average trip to work takes 17.7 minutes.
| Measure | Tract 9521 | Harper County |
|---|---|---|
| In the labor force (age 16+) | 64.8% ±6.9 pts | 60.1% |
| Unemployment rate | 1.0% ±1.9 pts | 2.6% |
| Drove alone to work | 86.9% ±7.4 pts | 88.3% |
| Carpooled | 7.8% ±6.4 pts | 8.1% |
| Public transportation | 0.0% ±3.2 pts | 0.0% |
| Walked | 0.4% ±0.7 pts | 0.2% |
| Worked from home | 2.6% ±3.2 pts | 1.3% |
| Mean travel time to work | 17.7 min ±4.3 | 19.4 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 9521 compare with the other tracts in Harper County?
Harper County has only two tracts, too few for a rank to say anything; the comparison above sets Census Tract 9521 beside the county and the state.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 9521?
4 of the 17 figures for Census Tract 9521 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections