Harrison County, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 98th-largest in Missouri
The population of Harrison County, Missouri is 8,198 as of the 2023 American Community Survey, making it the 98th-largest county in Missouri. The median household income is $53,364, the median home value is $107,400, and the median age is 40.9.
The population of Harrison County has declined 8.7% since 2010 (8,968 → 8,186), a -0.65% annualized rate.
8,198
Population
-0.65%
Annual growth
11
People / sq mi
$53,364
Median Income
$107,400
Median Home Value
Harrison County covers 723 sq mi of land at 11.3 people per square mile.
About Harrison County, MO
Harrison County is a county in Missouri with a population of 8,198. It ranks #98 among counties in Missouri by population. The median age is 40.9, older than the national median. The population is 49.9% male and 50.1% female.
The median household income in Harrison County is $53,364, below the US median of $74,580. 9.9% of residents live below the federal poverty level. Home values sit at a median of $107,400, with monthly rent averaging $666. The homeownership rate of 73.1% is higher than the national rate of 64.8%.
Educational attainment in Harrison County reflects 17.6% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 23.6 minutes each way.
Harrison County Population History (2010-2024)
The county of Harrison County had a population of 8,968 in 2010 and 8,186 in 2024, a -8.7% growth over 14 years. The peak was 8,968 in 2010. Average annual growth rate: -0.65%.
8,186
Population (2024)
8,968
Population (2010)
8,968
Peak (2010)
-0.65%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 8,968 |
| 2011 | 8,887 |
| 2012 | 8,731 |
| 2013 | 8,717 |
| 2014 | 8,638 |
| 2015 | 8,631 |
| 2016 | 8,587 |
| 2017 | 8,519 |
| 2018 | 8,362 |
| 2019 | 8,346 |
| 2020 | 8,157 |
| 2021 | 8,179 |
| 2022 | 8,213 |
| 2023 | 8,216 |
| 2024 | 8,186 |
Race & Ethnicity
| White | 96.0% |
| Black or African American | 0.8% |
| Asian | 0.3% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.0% |
Age & Sex
40.9
Median Age
50.1%
Female
49.9%
Male
22.2%
Age 65+
Age Distribution
Children (under 15): 20.5% · Seniors (65+): 22.2%
Income & Poverty
| Median household income | $53,364$-15,556 vs state |
| Mean household income | $63,860 |
| Per-capita income | $25,701 |
| Poverty rate | 9.9%+1.5% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 52.6% |
Top Industries by Employment
The largest employment sector in Harrison County is professional & business services, accounting for 28.3% of workers.
How residents commute
0.1%
Drive alone
1.2%
Carpool
80.4%
Public transit
7.9%
Work from home
23.6 min
Avg commute
Housing
$107,400$-108,200 vs state
Median home value
$666
Median rent
73.1%
Homeownership rate
4,023
Total housing units
76.2%
Occupied
23.8%
Vacant
26.9%
Renter-occupied
Social & access
92.3%
With health insurance
86.0%
With broadband internet
30.8%
Foreign-born
5.9%
Veterans (18+)
20.7%
With a disability
98.4%
Speak language other than English at home
Education
90.7%
High School+
17.6%
Bachelor's+
Largest cities in Missouri
Other counties in Missouri
Part of Missouri
Metro areas in Missouri
County rankings
Frequently Asked Questions
Harrison County, Missouri has a population of 8,198 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 98th-largest county in Missouri. Population density is 11 people per square mile.
The population of Harrison County has declined 8.7% since 2010 (8,968 → 8,186), a -0.65% annualized rate.
The median household income in Harrison County, Missouri is $53,364, with mean (average) household income of $63,860 and per-capita income of $25,701. 9.9% of residents live below the federal poverty level.
In Harrison County, the largest racial and ethnic groups are White (96.0%), Hispanic or Latino (1.3%), Black or African American (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Harrison County, Missouri is 40.9 years. Residents are 50.1% female and 49.9% male.
The median home value in Harrison County is $107,400 and median monthly rent is $666. 73.1% of occupied housing units are owner-occupied. The county has 4,023 total housing units, 23.8% of which are vacant.
The largest employment sector in Harrison County, Missouri is professional, scientific, and management services, employing 28.3% of workers. The unemployment rate is 1.8%.
Kansas City is among the largest cities associated with Harrison County, Missouri, with a population of 508,233.
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Statewide data for Missouri
Population, race, income, age, and trends across Missouri
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.