County · Oklahoma

Harper County, Oklahoma

Harper County, Oklahoma. Harper County had 3,172 residents in 2025 by the Census Bureau's estimate, down 2.8% since 2020, while Oklahoma grew 4.1%. It holds 5 places (4 cities, villages and boroughs and 1 census-designated) and 2 census tracts. GEOID 40059.

Residents, July 2025 estimate

3,172

Census Bureau estimate (no margin published)
2020 Census count: 3,272 · ACS 2020-2024: 3,203

Median household income

$64,053

±$10,380 (90% margin)
Oklahoma: $65,039

Median home value

$99,200

±$8,043 (90% margin)
Oklahoma: $199,800

Median gross rent

$828

±$82 (90% margin)
Oklahoma: $1,014

How many people live in Harper County, and is it growing?

The 2020 Census counted 3,272 residents in Harper County. The Census Bureau estimates 3,172 for July 1, 2025, down 2.8% since 2020, while Oklahoma grew 4.1%. The 2020-2024 American Community Survey puts the population at 3,203 over 1,039 square miles of land.

  • July 2020→2021 −73 (3,173)
  • 2021→2022 −7 (3,166)
  • 2022→2023 +35 (3,201)
  • 2023→2024 −5 (3,196)
  • 2024→2025 −24 (3,172)
Harper County in Oklahoma. Boundaries: Census Bureau 2024.
Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
MeasureHarper CountyOklahomaChange since 2015-2019
Total population3,2034,028,634−557
Households1,333±741,562,389no clear change
Average household size2.36±0.132.50−0.59
Housing units1,714±201,775,127−171

Harper County's population since 2000

From 3,562 in 2000 to 3,172 in 2025: down 10.9%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

  • 2000 Census 3,562
  • 2005 (estimate) 3,458
  • 2010 Census 3,685
  • 2015 (estimate) 3,825
  • 2020 Census 3,272
  • 2025 (estimate) 3,172

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Harper County?

Harper County holds 5 places: 4 cities, villages and boroughs (incorporated places) and 1 census-designated place. The largest is Laverne with 1,189 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Harper County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.
Lavernetown1,223904±198$60,694$115,60027.3%100%
Buffalotown1,0391,092±197$72,065$88,3005.0%100%
RosstonGEOID 4064050town5258±59$55,500not published79.3%100%
MayGEOID 4047000town2929±21$61,146not published20.7%100%
SelmanGEOID 4066300CDP120±10not publishednot published–100%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Harper County?

The median resident of Harper County is 40.9 years old; 23.8% are under 18 and 20.0% are 65 or older. The largest group is non-Hispanic white residents at 70.8%, then Hispanic or Latino residents (of any race) at 24.5%. 13.0% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureHarper CountyOklahomaChange since 2015-2019
Median age40.9±2.237.0no clear change
Under 18 years23.8%24.0%–
65 years and over20.0%±1.0 pts16.3%–
Hispanic or Latino (any race)24.5%12.7%+2.2 pts
White alone, not Hispanic70.8%±0.2 pts62.1%−5.0 pts
Black or African American alone, not Hispanic0.1%±0.1 pts6.8%–
Asian alone, not Hispanic0.1%±0.1 pts2.4%–
American Indian and Alaska Native alone, not Hispanic1.4%±1.0 pts6.6%–
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±0.8 pts0.2%–
Two or more races, not Hispanic3.2%±1.0 pts8.9%–
Some other race alone, not Hispanic0.0%±0.8 pts0.3%–
Born outside the United States13.0%±2.4 pts6.4%no clear change
Speak a language other than English at home (age 5+)21.9%±2.9 pts11.5%–
Civilian veterans (age 18+)6.4%±2.1 pts7.9%–
With a disability14.6%±2.6 pts17.2%–
No health insurance coverage14.1%±5.2 pts12.9%no clear change
High school graduate or higher (age 25+)88.4%±5.0 pts89.4%–
Bachelor's degree or higher (age 25+)29.3%±6.7 pts28.3%+10.0 pts
Graduate or professional degree (age 25+)4.9%±2.1 pts9.9%–
Moved from another state in the past year2.2%±2.2 pts2.7%–

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 Harper County earn?

Half of Harper County's 1,333 households earn less than $64,053 a year (±$10,380), against $65,039 in Oklahoma. In 2015-2019 it was $56,801 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.1% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureHarper CountyOklahomaChange since 2015-2019
Median household income$64,053±$10,380$65,039no clear change
Mean household income$76,094±$8,889$88,936–
Per capita income$30,811±$3,752$35,624no clear change
People below the poverty line13.1%±5.1 pts15.3%no clear change
Children under 18 below the poverty line15.7%±9.8 pts20.1%no clear change
Households receiving SNAP4.4%±2.8 pts14.1%–
Households with a broadband subscription85.3%±5.6 pts88.9%–

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 Harper County?

Owners occupy 83.6% of Harper County's occupied homes and renters 16.4%. The median owner-occupied home is valued at $99,200 by its owner (±$8,043). The median renter pays $828 a month including utilities.

Housing, ACS 2020-2024 5-year estimates
MeasureHarper CountyOklahomaChange since 2015-2019
Median home value (owner-occupied)$99,200±$8,043$199,800no clear change
Median gross rent$828±$82$1,014no clear change
Renters paying 35% or more of income on rent5.0%±6.3 pts37.5%–
Median monthly owner costs, with a mortgage$1,273±$96$1,539–
Owner-occupied homes83.6%±5.6 pts65.8%no clear change
Housing units1,714±201,775,127−171
Homeowner vacancy rate1.1%±1.2 pts1.2%–
Rental vacancy rate7.6%±8.1 pts6.5%–
Single-family detached homes86.6%±3.8 pts72.7%–
Mobile homes10.9%±3.6 pts8.2%–
Built 2020 or later1.3%±1.8 pts2.0%–
Built 1939 or earlier16.6%±4.6 pts6.9%–

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 many new homes is Harper County building?

Builders took permits for 2 new housing units across Harper County in 2025 (2 single-family), 0.6 per 1,000 residents.

  • 2019 0 units
  • 2020 0 units
  • 2021 0 units
  • 2022 0 units
  • 2023 1 units
  • 2024 2 units
  • 2025 2 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Harper County get to work?

88.3% of Harper County's workers drive alone. The average trip to work takes 19.4 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureHarper CountyOklahomaChange since 2015-2019
In the labor force (age 16+)60.1%±5.0 pts61.2%–
Unemployment rate2.6%±2.0 pts5.0%–
Drove alone to work88.3%±4.4 pts77.4%–
Carpooled8.1%±4.3 pts9.7%–
Public transportation0.0%±1.7 pts0.3%–
Walked0.2%±0.3 pts1.8%–
Worked from home1.3%±1.6 pts9.4%–
Mean travel time to work19.4 min±3.322.4 minno clear change

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 are Harper County's census tracts?

Harper County is divided into 2 census tracts. Among those with a reliable estimate, median household income runs from $59,375 (Tract 9522) to $74,417 (Tract 9521).

Census tracts of Harper County, ACS 2020-2024 5-year estimates; sort by any column
Tract 952140059952100Buffalo (33%)1,4601,532±187$74,417$92,400not published4.0%
Tract 952240059952200Laverne (31%)1,8121,671±187$59,375$118,600$87621.2%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Harper County compare with Oklahoma's other counties?

Harper County's rank among Oklahoma's counties with a reliable estimate (1 = highest)
MeasureRank
Population75th of 77
Growth 2020-202566th of 77
Residents per square mile73rd of 77
Median household income19th of 77
Median home value72nd of 77
Median gross rent39th of 77
Poverty rate61st of 77
Bachelor's degree or higher12th of 77
Median age25th of 77

Every county in Oklahoma

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Harper County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.