• county
  • FIPS 29071
  • Largest town: Washington

Franklin County, Missouri

Franklin County had 107,256 residents in the Census Vintage 2024 estimate, on 922.7 square miles of land. It ranks 12th of 115 in Missouri by population and 4th by land area.

Population
107,256
#12 of 115 in Missouri · #588 in US
Area
922.7 sq mi
#4 of 115 in Missouri · #792 in US
Density
116 / sq mi
#17 of 115 in Missouri · #815 in US
Median household income
$70,389
#18 of 115 in Missouri · #970 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Franklin County within Missouri. Pin: Jefferson City.

Measure from here

Tools and pages that start from Franklin County

Franklin County population, land area and income

Franklin County had 107,256 residents in the Census Vintage 2024 estimate, on 922.7 square miles of land. It ranks 12th of 115 in Missouri by population and 4th by land area. That works out to 116.2 people per square mile, 1.2 times the US average of 96.3, and above the national county median.

The median county-equivalent in Missouri has 19,100 residents, so Franklin County is 5.6 times that size.

Its SAIPE 2023 median household income of $70,389 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

107,256

3144th1st

588th of 3,144 (US)

Land area

923 sq mi

3144th1st

792nd of 3,144 (US)

Density

116.2 / sq mi

3144th1st

815th of 3,144 (US)

Median household income

$70,389

3143rd1st

970th of 3,143 (US)

Rank within Missouri (115)

Population

107,256

115th1st

12th of 115 (MO)

Land area

923 sq mi

115th1st

4th of 115 (MO)

Density

116.2 / sq mi

115th1st

17th of 115 (MO)

Median household income

$70,389

115th1st

18th of 115 (MO)

How Franklin County's population changed since 2020

Franklin County gained 2,389 residents between the July 2020 and July 2024 estimates, a rise of 2.3%. That ranks 42nd of 115 in Missouri for growth. The median Missouri county changed by +1.4%, and the state as a whole by +1.5%.

Since the April 2020 estimates base, Franklin County recorded 4,680 births and 5,579 deaths, a natural change of -899. Net international migration added +182 and net domestic migration, people moving to or from other US counties, came to +3,248. The largest single component was domestic migration, which added 3,248 people.

104.9k2020105.3k2021105.9k2022106.4k2023107.3k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
4,680
Deaths
5,579
Net international migration
+182
Net domestic migration
+3,248
Change, July 2023 to July 2024
+812

Where Franklin County is

The Census internal point of Franklin County is at 38.413000, -91.072800. It sits in UTM zone 15N. The map shades Missouri's 115 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Franklin County outlined. Dots are towns of 1,000+ people with residents in it.

Pettis County: +1.8%Henry County: +2.7%Texas County: +5.7%Madison County: +1.8%St. Louis city: -6.9%Cole County: +1.3%Washington County: +0.6%Macon County: -0.1%Barton County: +0.8%Grundy County: +0.1%Cedar County: +5.7%Randolph County: -1.6%Ray County: +0.3%Caldwell County: +2.0%Benton County: +6.1%Douglas County: +5.9%Shannon County: +3.4%Dade County: +0.5%Wright County: +7.1%Gentry County: +2.6%Lawrence County: +3.0%Cooper County: +2.9%Hickory County: +5.6%Moniteau County: +0.5%Dent County: +2.3%Monroe County: +2.3%Maries County: +0.7%Bollinger County: +0.5%Clinton County: +2.4%Knox County: +0.0%Webster County: +7.8%Harrison County: +0.4%Pulaski County: -0.1%Adair County: +1.5%Warren County: +7.7%Daviess County: +1.3%Audrain County: -1.9%Howard County: -0.1%Linn County: +0.4%Saline County: -0.1%Miller County: +3.6%Dallas County: +4.3%Morgan County: +6.7%New Madrid County: -6.8%Newton County: +4.8%Oregon County: +1.0%Franklin County: +2.3%Greene County: +2.9%Ralls County: +1.4%Lafayette County: +1.4%Livingston County: +4.8%McDonald County: +3.3%Barry County: +3.1%Cape Girardeau County: +2.2%Carroll County: -0.6%Christian County: +7.6%Vernon County: +0.6%Carter County: +3.0%Andrew County: -0.1%Jasper County: +2.9%Worth County: -4.9%Lincoln County: +10.1%Marion County: -0.2%Holt County: +1.2%Howell County: +2.4%St. Francois County: +1.6%Chariton County: +0.1%Butler County: -0.6%Iron County: -1.0%Perry County: +0.7%Cass County: +5.3%St. Louis County: -1.0%Dunklin County: -4.3%Wayne County: -1.1%Ozark County: +6.7%Laclede County: +1.9%Reynolds County: -2.5%Lewis County: -1.9%Taney County: +1.2%Ripley County: +0.4%Ste. Genevieve County: +0.4%Scotland County: -0.1%Putnam County: -3.1%Schuyler County: +1.5%Shelby County: -2.8%Boone County: +4.4%Mercer County: -1.7%Platte County: +5.6%Camden County: +3.1%Bates County: +2.1%Johnson County: +3.4%Sullivan County: -3.8%Atchison County: -3.1%Scott County: -0.2%Montgomery County: +2.0%Jefferson County: +2.2%Clark County: -0.5%Callaway County: +1.8%St. Clair County: +5.4%Buchanan County: -1.1%Pemiscot County: -7.6%Polk County: +4.6%Phelps County: +2.5%Stone County: +4.6%Osage County: +1.7%Clay County: +3.6%Nodaway County: -2.4%Crawford County: -1.0%Jackson County: +1.4%St. Charles County: +4.3%Mississippi County: -3.1%Pike County: +3.1%Stoddard County: -0.7%Gasconade County: -0.7%DeKalb County: -14.8%
Change 2020 to 2024
  1. < -0.7%
  2. < +0.5%
  3. < +2.0%
  4. < +3.6%
  5. ≥ +3.6%
no data

Orange pin: Franklin County internal point. Dark pin: Jefferson City.

Internal point

Decimal
38.413000, -91.072800
DMS
38°24'46.80"N 91°04'22.08"W
UTM
15N 668257.0E 4253398.4N
Geohash
9yz4x8fgc
Plus code
86CCCW7G+6V

Towns in Franklin County

7 incorporated places of 1,000+ people have residents in Franklin County, 49,418 people together, or 46% of the county. Each figure counts only the part of the town inside Franklin County; towns marked "part" extend into another county. The largest is Washington with 15,521.

  1. 01Washington15,521
  2. 02Union13,198
  3. 03Pacific (part)6,770
  4. 04Sullivan (part)5,423
  5. 05St. Clair4,748
  6. 06New Haven2,399
  7. 07Gerald1,359
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Franklin County

The Census 2024 county adjacency file lists 7 neighbors for Franklin County. The most populous is St. Louis County, MO, with 992,929 residents. Distances run between Census internal points in a straight line.

Distance to Jefferson City and the nearest big city

Jefferson City is 60.6 miles WNW of Franklin County's internal point in a straight line. The nearest place of 100,000 or more is St. Louis, MO (population 279,695), 47.3 miles away. The nearest place of 10,000 or more is Union, MO (population 13,198), 4.5 miles away.

Franklin County FIPS code

The FIPS code of Franklin County is 29071: state code 29 for Missouri plus county code 071. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $70,389.

Questions people ask

What is the population of Franklin County, Missouri?

The Census Vintage 2024 estimate for July 1, 2024 is 107,256. That is up 2,389 people (2.3%) from the July 2020 estimate of 104,867.

What is the FIPS code of Franklin County?

29071. The first two digits (29) are Missouri; the last three (071) identify the county.

What is the largest town in Franklin County?

Washington, with 15,521 residents inside Franklin County in 2024.

Which counties border Franklin County?

7 county-equivalents border it in the Census 2024 adjacency file: St. Louis County, MO; St. Charles County, MO; Jefferson County, MO; Warren County, MO; Washington County, MO; Crawford County, MO; Gasconade County, MO.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.