Jefferson County, Oklahoma Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 68th-largest in Oklahoma
The population of Jefferson County, Oklahoma is 5,377 as of the 2023 American Community Survey, making it the 68th-largest county in Oklahoma. The median household income is $48,750, the median home value is $77,500, and the median age is 41.2.
The population of Jefferson County has declined 16.5% since 2010 (6,436 → 5,374), a -1.28% annualized rate.
5,377
Population
-1.28%
Annual growth
7
People / sq mi
$48,750
Median Income
$77,500
Median Home Value
Jefferson County covers 759 sq mi of land at 7.1 people per square mile.
About Jefferson County, OK
Housing cost is the defining feature of Jefferson County: the median home is valued at $77,500. Jefferson County is a county in Oklahoma with a population of 5,377.
Incomes run on the lower side: a median household income of $48,750, below the US median of $78,538. Poverty sits at 17.5%, above the national 12.4%. Real estate is inexpensive, with a typical home worth only $77,500, with typical rent around $588.
College attainment is 15.7%, below the national 35.0%. Most workers commute: only 4.6% work from home, below the national 14.0%, and the average commute runs about 27 minutes each way.
Jefferson County Population History (2010-2024)
The county of Jefferson County had a population of 6,436 in 2010 and 5,374 in 2024, a -16.5% growth over 14 years. The peak was 6,449 in 2011. Average annual growth rate: -1.24%.
5,374
Population (2024)
6,436
Population (2010)
6,449
Peak (2011)
-1.24%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 6,436 |
| 2011 | 6,449 |
| 2012 | 6,336 |
| 2013 | 6,354 |
| 2014 | 6,288 |
| 2015 | 6,259 |
| 2016 | 6,239 |
| 2017 | 6,158 |
| 2018 | 6,088 |
| 2019 | 5,988 |
| 2020 | 5,331 |
| 2021 | 5,401 |
| 2022 | 5,428 |
| 2023 | 5,367 |
| 2024 | 5,374 |
Race & Ethnicity
| White | 79.7% |
| Black or African American | 1.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 11.3% |
| Two or More Races | 0.0% |
Age & Sex
41.2
Median Age
50.7%
Female
49.3%
Male
20.9%
Age 65+
Age Distribution
Children (under 15): 20.9% · Seniors (65+): 20.9%
Income & Poverty
| Median household income | $48,750$-14,853 vs state |
| Mean household income | $70,599 |
| Per-capita income | $30,984 |
| Poverty rate | 17.5%+6.4% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 51.7% |
Top Industries by Employment
The largest employment sector in Jefferson County is professional & business services, accounting for 17.4% of workers.
How residents commute
3.4%
Drive alone
2.7%
Carpool
71.4%
Public transit
4.6%
Work from home
26.7 min
Avg commute
Housing
$77,500$-108,400 vs state
Median home value
$588
Median rent
72.4%
Homeownership rate
2,742
Total housing units
78.8%
Occupied
21.2%
Vacant
27.6%
Renter-occupied
Social & access
85.7%
With health insurance
91.5%
With broadband internet
41.7%
Foreign-born
7.2%
Veterans (18+)
27.5%
With a disability
93.0%
Speak language other than English at home
Education
84.8%
High School+
15.7%
Bachelor's+
Largest cities in Oklahoma
Other counties in Oklahoma
Part of Oklahoma
Metro areas in Oklahoma
County rankings
Frequently Asked Questions
Jefferson County, Oklahoma has a population of 5,377 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 68th-largest county in Oklahoma. Population density is 7 people per square mile.
The population of Jefferson County has declined 16.5% since 2010 (6,436 → 5,374), a -1.28% annualized rate.
The median household income in Jefferson County, Oklahoma is $48,750, with mean (average) household income of $70,599 and per-capita income of $30,984. 17.5% of residents live below the federal poverty level.
In Jefferson County, the largest racial and ethnic groups are White (79.7%), Hispanic or Latino (11.3%), Black or African American (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Jefferson County, Oklahoma is 41.2 years. Residents are 50.7% female and 49.3% male.
The median home value in Jefferson County is $77,500 and median monthly rent is $588. 72.4% of occupied housing units are owner-occupied. The county has 2,742 total housing units, 21.2% of which are vacant.
The largest employment sector in Jefferson County, Oklahoma is professional, scientific, and management services, employing 17.4% of workers. The unemployment rate is 2.2%.
Oklahoma City is among the largest cities associated with Jefferson County, Oklahoma, with a population of 688,693.
Jefferson County, OK Climate
Jefferson County, OK has an average annual temperature of 17.1°C (63°F) and receives about 816 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
17.1°C
Avg Temp
816
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 4° / 40° | 33 mm |
| February | 7° / 45° | 44 mm |
| March | 12° / 54° | 66 mm |
| April | 17° / 62° | 73 mm |
| May | 22° / 71° | 117 mm |
| June | 26° / 79° | 96 mm |
| July | 29° / 84° | 48 mm |
| August | 28° / 83° | 61 mm |
| September | 24° / 75° | 98 mm |
| October | 18° / 65° | 85 mm |
| November | 11° / 52° | 50 mm |
| December | 6° / 43° | 45 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Jefferson County, OK
The most comfortable months to visit Jefferson County, OK are typically May, October and April, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 36°C high). The coldest is January (near -2°C low). May is usually the wettest month.
Where to stay near Jefferson County
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Population, race, income, age, and trends across Oklahoma
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.