Franklin County, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 12th-largest in Missouri
The population of Franklin County, Missouri is 105,316 as of the 2023 American Community Survey, making it the 12th-largest county in Missouri. The median household income is $71,973, the median home value is $214,900, and the median age is 41.4.
The population of Franklin County has grown 5.8% since 2010 (101,424 → 107,256), a +0.40% annualized rate.
105,316
Population
+0.40%
Annual growth
114
People / sq mi
$71,973
Median Income
$214,900
Median Home Value
Franklin County covers 923 sq mi of land at 114.1 people per square mile.
About Franklin County, MO
The poverty rate is what most separates Franklin County from the typical county: 5.4% of residents live below the federal poverty line, against 12.4% nationally. Franklin County is a county in Missouri with a population of 105,316. It ranks #12 among counties in Missouri by population.
The typical household earns $71,973 a year, below the US median of $78,538. Only 5.4% of residents live in poverty, below the national 12.4%. Median home value is $214,900, with typical rent around $874.
Degree attainment is mid-range for US counties: 23.0% of adults hold a four-year degree, below the national 35.0%. About 10.0% of the workforce is home-based, below the national 14.0%, and the average commute runs about 28 minutes each way.
Franklin County Population History (2010-2024)
The county of Franklin County had a population of 101,424 in 2010 and 107,256 in 2024, a 5.8% growth over 14 years. The peak was 107,256 in 2024. Average annual growth rate: 0.40%.
107,256
Population (2024)
101,424
Population (2010)
107,256
Peak (2024)
0.40%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 101,424 |
| 2011 | 101,618 |
| 2012 | 101,331 |
| 2013 | 101,717 |
| 2014 | 101,923 |
| 2015 | 102,265 |
| 2016 | 102,758 |
| 2017 | 103,340 |
| 2018 | 103,716 |
| 2019 | 103,860 |
| 2020 | 104,867 |
| 2021 | 105,317 |
| 2022 | 105,865 |
| 2023 | 106,444 |
| 2024 | 107,256 |
Race & Ethnicity
| White | 89.8% |
| Black or African American | 0.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Age & Sex
41.4
Median Age
50.1%
Female
49.9%
Male
18.5%
Age 65+
Age Distribution
Children (under 15): 18.4% · Seniors (65+): 18.5%
Income & Poverty
| Median household income | $71,973+$3,053 vs state |
| Mean household income | $90,460 |
| Per-capita income | $36,524 |
| Poverty rate | 5.4%-3.0% vs state |
| Unemployment rate | 2.7% |
| Employment-to-population | 59.5% |
Top Industries by Employment
The largest employment sector in Franklin County is manufacturing, accounting for 20.0% of workers.
How residents commute
0.1%
Drive alone
1.7%
Carpool
78.3%
Public transit
10.0%
Work from home
28.3 min
Avg commute
Housing
$214,900$-700 vs state
Median home value
$874
Median rent
76.4%
Homeownership rate
45,843
Total housing units
92.2%
Occupied
7.8%
Vacant
23.6%
Renter-occupied
Social & access
92.3%
With health insurance
94.3%
With broadband internet
19.7%
Foreign-born
8.0%
Veterans (18+)
13.9%
With a disability
98.2%
Speak language other than English at home
Education
91.0%
High School+
23.0%
Bachelor's+
Largest cities in Missouri
Other counties in Missouri
Part of Missouri
Metro areas in Missouri
County rankings
Frequently Asked Questions
Franklin County, Missouri has a population of 105,316 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 12th-largest county in Missouri. Population density is 114 people per square mile.
The population of Franklin County has grown 5.8% since 2010 (101,424 → 107,256), a +0.40% annualized rate.
The median household income in Franklin County, Missouri is $71,973, with mean (average) household income of $90,460 and per-capita income of $36,524. 5.4% of residents live below the federal poverty level.
In Franklin County, the largest racial and ethnic groups are White (89.8%), Hispanic or Latino (1.2%), 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 Franklin County, Missouri is 41.4 years. Residents are 50.1% female and 49.9% male.
The median home value in Franklin County is $214,900 and median monthly rent is $874. 76.4% of occupied housing units are owner-occupied. The county has 45,843 total housing units, 7.8% of which are vacant.
The largest employment sector in Franklin County, Missouri is manufacturing, employing 20.0% of workers. The unemployment rate is 2.7%.
Kansas City is among the largest cities associated with Franklin County, Missouri, with a population of 508,233.
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Full rankings of Missouri counties
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.