Data / Population / Harper County

Population in Harper County

Population in Harper County was 3,172 in 2025, according to the U.S. Census Bureau. That is down 0.8% from 2024. That is the 75th highest of 77 counties in 2025.

2025, persons3,172
Change on 2024-0.8%
Rank75th of 77Counties in Oklahoma ranked
Series high3,2462020
Series low3,1662022

Population in Harper County, 2020 to 2025

CSVChart (SVG)

3,1603,1803,2003,2203,2403,2602020202120222023202420252020: 3,246 persons2021: 3,173 persons2022: 3,166 persons2023: 3,201 persons2024: 3,196 persons2025: 3,172 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20253,172
20243,196
20233,201
20223,166
20213,173
20203,246

Compared with Oklahoma and United States

Place2025
Harper County3,172
Oklahoma4,123,288
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

What is the latest population in Harper County? Cite the source.
get_value {"indicator":"population","place":"us-county-40059"}
GET https://invokely.ai/api/v1/value?indicator=population&place=us-county-40059

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

What is the population in Harper County?

Population in Harper County was 3,172 in 2025, according to the U.S. Census Bureau. That is down 0.8% from 2024. That is the 75th highest of 77 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Harper County?

3,246 in 2020, the highest value since 2020 in this series.

More statistics for Harper County

All statistics for Harper County