What is the population of Harper County?

Harper County has 3,231 residents on Census ACS 2019-2023 ACS 5-year estimates.

What is the median household income in Harper County?

Median household income in Harper County is $59,191 a year, 24.6% below the national figure of $78,538.

How much does it cost to rent or buy in Harper County?

Median gross rent is $791 a month and the median home value is $99,300, so rent absorbs about 16% of median household income.

Is Harper County affordable compared with the rest of the US?

Homes cost about 1.7× the local median income here versus roughly 3.9× nationally, so Harper County is more affordable to buy in than the typical US market, and rent takes 16% of median income against the 30% cost-burden line.

Historic small-town main street building, illustrating the US counties directory

Oklahoma · FIPS 40059

Harper ZIP codes — Harper County, Oklahoma

Quick answer

Harper County is home to 3,231 residents with a median household income of $59,191 and a median home value of $99,300. 80.3% of households own their home and 15.9% of residents live below the poverty line. Looking for a Harper ZIP code? 2 ZIP code areas fall inside Harper County, Oklahoma, listed in full below.

Population: 3,231Harper County residents
Median household income: $59,191Past 12 months, inflation adjusted
Median home value: $99,300Owner-occupied units
Median gross rent: $791Rent plus utilities, monthly
Median age: 41.3 yrsAll residents
Homeownership rate: 80.3%Owner-occupied households

Harper County, OK in context

How this area compares with national benchmarks.

Harper County is a small town in Oklahoma, with 3,231 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 41.3 years against 39.1 nationally, a slightly older profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Harper County earn a median of $59,191 a year, 24.6% below the national figure of $78,538. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 15.9% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Harper County is valued at $99,300, 67.3% below the national figure, while median gross rent runs $791 a month, 43.7% below the national figure, or roughly $9,492 across a full year. A household on the local median income would put about 16% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 1.7×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 80.3% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

ZIP codes in Harper County

ZIP code tabulation areas whose land area falls mostly in Harper County.

How to read this page

What these estimates cover.

Figures are five-year rolling averages from the American Community Survey, not single-year counts, so they describe conditions across 2019-2023 ACS 5-year rather than a single date. Median home value covers owner-occupied units as valued by their owners, and median gross rent includes utilities the renter pays. Small counties carry wide margins of error; treat single-dollar differences between neighbouring counties as noise.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Cities and towns in Oklahoma

Largest Census places in Oklahoma by population.

Nearby counties

Other counties in Oklahoma.

Frequently asked questions

Common questions about this area.

What is the population of Harper County?: Harper County has 3,231 residents on Census ACS 2019-2023 ACS 5-year estimates.
What is the median household income in Harper County?: Median household income in Harper County is $59,191 a year, 24.6% below the national figure of $78,538.
How much does it cost to rent or buy in Harper County?: Median gross rent is $791 a month and the median home value is $99,300, so rent absorbs about 16% of median household income.
Is Harper County affordable compared with the rest of the US?: Homes cost about 1.7× the local median income here versus roughly 3.9× nationally, so Harper County is more affordable to buy in than the typical US market, and rent takes 16% of median income against the 30% cost-burden line.
How current is this Harper County data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.