Marshall County, Oklahoma Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 44th-largest in Oklahoma
The population of Marshall County, Oklahoma is 15,628 as of the 2023 American Community Survey, making it the 44th-largest county in Oklahoma. The median household income is $56,495, the median home value is $139,700, and the median age is 42.0.
The population of Marshall County has grown 2.0% since 2010 (15,838 → 16,147), a +0.14% annualized rate.
15,628
Population
+0.14%
Annual growth
42
People / sq mi
$56,495
Median Income
$139,700
Median Home Value
Marshall County covers 371 sq mi of land at 42.1 people per square mile.
About Marshall County, OK
Marshall County is a county in Oklahoma with a population of 15,628. It ranks #44 among counties in Oklahoma by population. The median age is 42.0, older than the national median. The population is 50.9% male and 49.1% female.
The median household income in Marshall County is $56,495, below the US median of $74,580. 12.7% of residents live below the federal poverty level. Home values sit at a median of $139,700, with monthly rent averaging $819. The homeownership rate of 79.6% is higher than the national rate of 64.8%.
Educational attainment in Marshall County reflects 16.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 24.9 minutes each way.
Marshall County Population History (2010-2024)
The county of Marshall County had a population of 15,838 in 2010 and 16,147 in 2024, a 2.0% growth over 14 years. The peak was 16,946 in 2019. Average annual growth rate: 0.18%.
16,147
Population (2024)
15,838
Population (2010)
16,946
Peak (2019)
0.18%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 15,838 |
| 2011 | 15,952 |
| 2012 | 16,021 |
| 2013 | 16,064 |
| 2014 | 16,160 |
| 2015 | 16,267 |
| 2016 | 16,265 |
| 2017 | 16,371 |
| 2018 | 16,746 |
| 2019 | 16,946 |
| 2020 | 15,339 |
| 2021 | 15,553 |
| 2022 | 15,947 |
| 2023 | 15,974 |
| 2024 | 16,147 |
Race & Ethnicity
| White | 67.2% |
| Black or African American | 0.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 15.3% |
| Two or More Races | 0.0% |
Age & Sex
42.0
Median Age
49.1%
Female
50.9%
Male
22.1%
Age 65+
Age Distribution
Children (under 15): 19.1% · Seniors (65+): 22.1%
Income & Poverty
| Median household income | $56,495$-7,108 vs state |
| Mean household income | $69,996 |
| Per-capita income | $27,759 |
| Poverty rate | 12.7%+1.6% vs state |
| Unemployment rate | 2.8% |
| Employment-to-population | 49.5% |
Top Industries by Employment
The largest employment sector in Marshall County is manufacturing, accounting for 17.6% of workers.
How residents commute
0.1%
Drive alone
1.7%
Carpool
79.9%
Public transit
6.2%
Work from home
24.9 min
Avg commute
Housing
$139,700$-46,200 vs state
Median home value
$819
Median rent
79.6%
Homeownership rate
8,817
Total housing units
65.2%
Occupied
34.8%
Vacant
20.4%
Renter-occupied
Social & access
82.9%
With health insurance
91.9%
With broadband internet
33.9%
Foreign-born
10.3%
Veterans (18+)
22.3%
With a disability
85.5%
Speak language other than English at home
Education
84.7%
High School+
16.9%
Bachelor's+
Largest cities in Oklahoma
Other counties in Oklahoma
Part of Oklahoma
Metro areas in Oklahoma
County rankings
Frequently Asked Questions
Marshall County, Oklahoma has a population of 15,628 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 44th-largest county in Oklahoma. Population density is 42 people per square mile.
The population of Marshall County has grown 2.0% since 2010 (15,838 → 16,147), a +0.14% annualized rate.
The median household income in Marshall County, Oklahoma is $56,495, with mean (average) household income of $69,996 and per-capita income of $27,759. 12.7% of residents live below the federal poverty level.
In Marshall County, the largest racial and ethnic groups are White (67.2%), Hispanic or Latino (15.3%), Black or African American (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marshall County, Oklahoma is 42.0 years. Residents are 49.1% female and 50.9% male.
The median home value in Marshall County is $139,700 and median monthly rent is $819. 79.6% of occupied housing units are owner-occupied. The county has 8,817 total housing units, 34.8% of which are vacant.
The largest employment sector in Marshall County, Oklahoma is manufacturing, employing 17.6% of workers. The unemployment rate is 2.8%.
Oklahoma City is among the largest cities associated with Marshall County, Oklahoma, with a population of 688,693.
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Statewide data for Oklahoma
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.