Population
108,090
2025
+3.1% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Franklin County had an estimated 108,090 residents in 2025, up 3.1% (3,238 more people) since 2020. That is faster than Missouri as a whole (+1.9%), and the 36th fastest growth of 115 counties in Missouri.
Data as of 2025 · updated
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108,090
2025
+3.1% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
+717
2025
6.6 per 1,000 residents
+3,776 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
3.7%
2025
+0.5 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
794
2025
+62.7% since 2021
7.3 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$73,165
2020–24
+21.7% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
35,466
2023
−2.3% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration added 717 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 35,466 paid employees in mid-March 2023, −2.3% since 2018 (County Business Patterns).
Unemployment averaged 3.7% in 2025, 0.5 points higher than in 2019 (before the pandemic).
Builders were authorized to start 794 new homes in 2025, or 7.3 per 1,000 residents.
Median household income was $73,165 in the 2020–24 American Community Survey, +21.7% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 961st.
Part of the St. Louis, MO-IL metro area.
Email me when Franklin County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
| Year | Population | Change |
|---|---|---|
| 2025 | 108,090 | +703 |
| 2024 | 107,387 | +947 |
| 2023 | 106,440 | +586 |
| 2022 | 105,854 | +539 |
| 2021 | 105,315 | +463 |
| 2020 | 104,852 | – |
Census Bureau population estimates, July 1 of each year.
Franklin County grew by 3,238 people since 2020; the largest part came from domestic migration (+3,776).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −42 | −745 | |
| International migrationfrom and to other countries | +23 | +174 | |
| Domestic migrationfrom and to other U.S. counties | +717 | +3,776 | |
| Census adjustmentbalancing residual | +5 | +33 | |
| Total change | +703 | +3,238 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Missouri | Among U.S. counties |
|---|---|---|
| Population growth | 36th of 115 | 961st of 3,107 |
| Net domestic migration per 1,000 residents | 44th of 115 | 870th of 3,108 |
| Private-sector job growth | 72nd of 115 | 2,181st of 3,092 |
| Median household income | 16th of 115 | 951st of 3,107 |
| Lowest unemployment rate | 25th of 115 | 1,183rd of 3,108 |
| New homes permitted per 1,000 residents | 4th of 113 | 307th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
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Over 2020–25, Franklin County's population change (+3.1%) was ahead of 5 of its 7 neighbouring counties and behind 2 (Warren County and St. Charles County).
4 of its 7 neighbouring counties had a higher median household income than Franklin County's $73,165 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Franklin County, MO This county | 108,090 | +3.1% | 6.6 | 7.3 | $73,165 |
| Warren County, MO | 39,016 | +9.2% | 12.1 | 9.2 | $81,209 |
| St. Charles County, MO | 426,499 | +4.9% | 5.6 | 3.9 | $104,692 |
| Gasconade County, MO | 14,784 | +0.1% | 9.1 | 1.6 | $64,232 |
| Washington County, MO | 23,810 | +1.6% | 12.1 | 0.0 | $56,043 |
| Jefferson County, MO | 233,132 | +2.7% | 4.3 | 2.6 | $82,851 |
| St. Louis County, MO | 990,911 | −1.2% | −3.4 | 1.0 | $82,936 |
| Crawford County, MO | 22,929 | −0.4% | 7.5 | 0.7 | $57,629 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
Yes. Its population grew 3.1% between 2020 and 2025, about 3,238 more people (Census Bureau population estimates). Missouri as a whole changed +1.9% over the same years. That ranks 36th of 115 counties in Missouri for population growth.
On net, about 717 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
It averaged 3.7% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 108,090 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 35,466 paid employees in mid-March 2023, −2.3% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Missouri county pages carry the public federal growth figures.
Email me when Franklin County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.