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
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
Moderate diversity with one or two groups making up the majority.
State average: 57 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Harper County
Explore Oklahoma Rankings
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.