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Population Review

Harmon County, Oklahoma Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 76th-largest in Oklahoma

The population of Harmon County, Oklahoma is 2,452 as of the 2023 American Community Survey, making it the 76th-largest county in Oklahoma. The median household income is $54,286, the median home value is $75,700, and the median age is 40.3.

The population of Harmon County has declined 20.8% since 2010 (2,922 → 2,315), a -1.65% annualized rate.

Harmon County within Oklahoma · Source: US Census TIGER/Line via us-atlas

2,452

Population

-1.65%

Annual growth

5

People / sq mi

$54,286

Median Income

$75,700

Median Home Value

Harmon County covers 537 sq mi of land at 4.6 people per square mile.

About Harmon County, OK

Harmon County is a county in Oklahoma with a population of 2,452. It ranks #76 among counties in Oklahoma by population. The median age is 40.3, older than the national median. The population is 50.4% male and 49.6% female.

The median household income in Harmon County is $54,286, below the US median of $74,580. 13.7% of residents live below the federal poverty level. Home values sit at a median of $75,700, with monthly rent averaging $663. The homeownership rate of 72.0% is higher than the national rate of 64.8%.

Educational attainment in Harmon County reflects 16.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 9.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 21.4 minutes each way.

Harmon County Population History (2010-2024)

The county of Harmon County had a population of 2,922 in 2010 and 2,315 in 2024, a -20.8% growth over 14 years. The peak was 2,936 in 2011. Average annual growth rate: -1.63%.

2011 · 3K20102024

2,315

Population (2024)

2,922

Population (2010)

2,936

Peak (2011)

-1.63%

Avg Annual Growth

YearPopulation
20102,922
20112,936
20122,916
20132,894
20142,804
20152,782
20162,712
20172,715
20182,688
20192,645
20202,475
20212,403
20222,428
20232,409
20242,315

Race & Ethnicity

White68.1%
Black or African American11.1%
Asian0.0%
Hispanic or Latino (any race)4.7%
Two or More Races0.0%

Age & Sex

40.3

Median Age

49.6%

Female

50.4%

Male

20.2%

Age 65+

Age Distribution

Under 5
4.9%
5–9
5.5%
10–14
8.0%
15–19
6.2%
20–24
5.7%
25–34
11.3%
35–44
12.6%
45–54
11.8%
55–59
4.4%
60–64
9.5%
65–74
12.4%
75–84
5.0%
85+
2.8%

Children (under 15): 18.4% · Seniors (65+): 20.2%

Income & Poverty

Median household income$54,286$-9,317 vs state
Mean household income$77,060
Per-capita income$31,601
Poverty rate13.7%+2.6% vs state
Unemployment rate5.6%
Employment-to-population52.6%

Top Industries by Employment

Agriculture
27.2%
Professional & business services
24.1%
Public administration
9.9%
Education & health care
5.7%
Information
5.1%
Finance & real estate
4.1%
Manufacturing
4.0%
Arts, entertainment & food
3.8%

The largest employment sector in Harmon County is agriculture, accounting for 27.2% of workers.

How residents commute

0.0%

Drive alone

0.8%

Carpool

85.0%

Public transit

9.0%

Work from home

21.4 min

Avg commute

Housing

$75,700$-110,200 vs state

Median home value

$663

Median rent

72.0%

Homeownership rate

1,358

Total housing units

70.0%

Occupied

30.0%

Vacant

28.0%

Renter-occupied

Social & access

77.8%

With health insurance

87.4%

With broadband internet

30.5%

Foreign-born

2.9%

Veterans (18+)

20.5%

With a disability

83.6%

Speak language other than English at home

Education

83.5%

High School+

16.3%

Bachelor's+

Largest cities in Oklahoma

Other counties in Oklahoma

Part of Oklahoma

Metro areas in Oklahoma

County rankings

Frequently Asked Questions

Harmon County, Oklahoma has a population of 2,452 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 76th-largest county in Oklahoma. Population density is 5 people per square mile.

The population of Harmon County has declined 20.8% since 2010 (2,922 → 2,315), a -1.65% annualized rate.

The median household income in Harmon County, Oklahoma is $54,286, with mean (average) household income of $77,060 and per-capita income of $31,601. 13.7% of residents live below the federal poverty level.

In Harmon County, the largest racial and ethnic groups are White (68.1%), Black or African American (11.1%), Hispanic or Latino (4.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Harmon County, Oklahoma is 40.3 years. Residents are 49.6% female and 50.4% male.

The median home value in Harmon County is $75,700 and median monthly rent is $663. 72.0% of occupied housing units are owner-occupied. The county has 1,358 total housing units, 30.0% of which are vacant.

The largest employment sector in Harmon County, Oklahoma is agriculture, forestry, fishing, and mining, employing 27.2% of workers. The unemployment rate is 5.6%.

Oklahoma City is among the largest cities associated with Harmon County, Oklahoma, with a population of 688,693.

Data from the American Community Survey (ACS) 5-Year estimates.

Source: U.S. Census Bureau ACS, 2026.