Harper County, Oklahoma Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 75th-largest in Oklahoma
The population of Harper County, Oklahoma is 3,231 as of the 2023 American Community Survey, making it the 75th-largest county in Oklahoma. The median household income is $59,191, the median home value is $99,300, and the median age is 41.3.
The population of Harper County has declined 13.2% since 2010 (3,695 → 3,209), a -1.00% annualized rate.
3,231
Population
-1.00%
Annual growth
3
People / sq mi
$59,191
Median Income
$99,300
Median Home Value
Harper County covers 1,039 sq mi of land at 3.1 people per square mile.
About Harper County, OK
What sets Harper County apart is where people work — remote work is unusually rare here, at 2.2% versus 14.0% nationally. Harper County is a county in Oklahoma with a population of 3,231.
Median household income is $59,191, below the US median of $78,538. About 10.8% of residents live below the federal poverty level, below the national 12.4%. Home prices sit near the bottom of the range at $99,300, with typical rent around $791.
Degree attainment is mid-range for US counties: 26.6% of adults hold a four-year degree, below the national 35.0%. Almost everyone commutes — only 2.2% work from home, below the national 14.0%, and the average commute runs about 18 minutes each way.
Harper County Population History (2010-2024)
The county of Harper County had a population of 3,695 in 2010 and 3,209 in 2024, a -13.2% growth over 14 years. The peak was 3,894 in 2014. Average annual growth rate: -0.94%.
3,209
Population (2024)
3,695
Population (2010)
3,894
Peak (2014)
-0.94%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 3,695 |
| 2011 | 3,713 |
| 2012 | 3,711 |
| 2013 | 3,869 |
| 2014 | 3,894 |
| 2015 | 3,825 |
| 2016 | 3,787 |
| 2017 | 3,799 |
| 2018 | 3,746 |
| 2019 | 3,707 |
| 2020 | 3,248 |
| 2021 | 3,175 |
| 2022 | 3,176 |
| 2023 | 3,207 |
| 2024 | 3,209 |
Race & Ethnicity
| White | 76.5% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.9% |
| Two or More Races | 0.0% |
Age & Sex
41.3
Median Age
50.5%
Female
49.5%
Male
20.4%
Age 65+
Age Distribution
Children (under 15): 19.7% · Seniors (65+): 20.4%
Income & Poverty
| Median household income | $59,191$-4,412 vs state |
| Mean household income | $69,291 |
| Per-capita income | $27,360 |
| Poverty rate | 10.8%-0.3% vs state |
| Unemployment rate | 1.3% |
| Employment-to-population | 57.3% |
Top Industries by Employment
The largest employment sector in Harper County is agriculture, accounting for 23.7% of workers.
How residents commute
0.0%
Drive alone
1.4%
Carpool
89.0%
Public transit
2.2%
Work from home
17.8 min
Avg commute
Housing
$99,300$-86,600 vs state
Median home value
$791
Median rent
80.3%
Homeownership rate
1,714
Total housing units
73.2%
Occupied
26.8%
Vacant
19.7%
Renter-occupied
Social & access
85.9%
With health insurance
90.3%
With broadband internet
32.1%
Foreign-born
7.8%
Veterans (18+)
16.8%
With a disability
78.0%
Speak language other than English at home
Education
87.6%
High School+
26.6%
Bachelor's+
Largest cities in Oklahoma
Other counties in Oklahoma
Part of Oklahoma
Metro areas in Oklahoma
County rankings
Frequently Asked Questions
Harper County, Oklahoma has a population of 3,231 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 75th-largest county in Oklahoma. Population density is 3 people per square mile.
The population of Harper County has declined 13.2% since 2010 (3,695 → 3,209), a -1.00% annualized rate.
The median household income in Harper County, Oklahoma is $59,191, with mean (average) household income of $69,291 and per-capita income of $27,360. 10.8% of residents live below the federal poverty level.
In Harper County, the largest racial and ethnic groups are White (76.5%), Hispanic or Latino (3.9%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Harper County, Oklahoma is 41.3 years. Residents are 50.5% female and 49.5% male.
The median home value in Harper County is $99,300 and median monthly rent is $791. 80.3% of occupied housing units are owner-occupied. The county has 1,714 total housing units, 26.8% of which are vacant.
The largest employment sector in Harper County, Oklahoma is agriculture, forestry, fishing, and mining, employing 23.7% of workers. The unemployment rate is 1.3%.
Oklahoma City is among the largest cities associated with Harper County, Oklahoma, with a population of 688,693.
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Statewide data for Oklahoma
Population, race, income, age, and trends across Oklahoma
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.