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Harper County, Oklahoma Demographics 2026

Harper County, Oklahoma has a population of 3,231, the 75th most populous county in Oklahoma. The median household income is $59,191 and the median home value is $99,300. The poverty rate is 15.9%.

Harper County Quick Facts

Population 3,231
Median Household Income $59,191
Median Home Value $99,300
Poverty Rate 15.9%
Unemployment Rate 2.1%
Median Age 41.3 years
Homeownership Rate 80.3%
Affordability Ratio 1.7x
Bachelor's Degree+ 26.6%
High School Graduation 87.6%
Cities/Places 4
Population 3,231 75th of 77
Median Income $59,191 7% lower than state
Poverty Rate 15.9%
Unemployment 2.1%

Economy & Housing

Household Income Distribution

Under $25K 20.4%
$25K-$50K 22.9%
$50K-$100K 33.2%
$100K+ 23.5%
Detailed income brackets
Under $10K
2.0%
$10K-$15K
7.6%
$15K-$20K
6.7%
$20K-$25K
4.1%
$25K-$30K
4.3%
$30K-$35K
3.4%
$35K-$40K
2.8%
$40K-$45K
9.3%
$45K-$50K
3.1%
$50K-$60K
7.2%
$60K-$75K
12.5%
$75K-$100K
13.6%
$100K-$125K
11.7%
$125K-$150K
2.3%
$150K-$200K
8.0%
$200K+
1.5%

Employment

2.1% Unemployment Rate State: 4.9%|National: 5.2%
58.5% Labor Force Participation

Housing Overview

Owner 80.3%
Renter 19.7%
Affordability Index Very Affordable
1.7x home value to income ratio

People & Demographics

Diversity Index

42out of 100
Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 57 | National average: 61

Education

Cities & Places in Harper County

CityPopulationMedian IncomePovertyHome Value
Buffalo1,244$69,8759.8%$89,200
Laverne1,050$56,25025.4%$109,400
Rosston52N/A82.7%N/A
May30$35,00030.0%N/A

Population Overview

Harper County is located in Oklahoma with a total population of 3,231. It is the 75th most populous county out of 77 in Oklahoma. The county encompasses 4 Census-designated places.

Age Demographics

The median age in Harper County is 41.3 years. This is 12% higher than the state median of 36.9 years.

Economy, Income & Housing

The median household income in Harper County is $59,191. This is 7% lower than the state median of $63,603. It is also 25% lower than the national median of $78,538. The poverty rate stands at 15.9%. This is 4% higher than the state poverty rate of 15.3%. The unemployment rate is 2.1%. This is 56% lower than the state rate of 4.9%. The median home value is $99,300. Housing costs are 47% lower than the state median of $185,900. With a home-value-to-income ratio of just 1.7x, Harper County is one of the most affordable housing markets in the area. 80.3% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 65.8%.

Race & Ethnicity

The largest racial or ethnic group in Harper County is White (non-Hispanic), making up 72.3% of the population. Hispanic or Latino residents account for 23.3%. The Black or African American population (0.1%) is well below the state average of 6.9%. The Hispanic or Latino population is significantly higher than the state average (23.3% vs 12.3%). The Asian population (0.1%) is well below the state average of 2.3%.

Education

26.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% lower than the state rate of 27.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.6%.

Data Sources & Methodology

All figures for Harper County come from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023), with comparisons drawn against Oklahoma and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Harper County, Oklahoma?

Harper County has a population of 3,231, making it the 75th most populous county in Oklahoma.

What is the median income in Harper County?

The median household income in Harper County is $59,191 with a poverty rate of 15.9%.

How many cities are in Harper County, Oklahoma?

Harper County contains 4 Census-designated places.