• county
  • FIPS 29211
  • Largest town: Milan

Sullivan County, Missouri

Sullivan County had 5,750 residents in the Census Vintage 2024 estimate, on 648.0 square miles of land. It ranks 106th of 115 in Missouri by population and 41st by land area.

Population
5,750
#106 of 115 in Missouri · #2,757 in US
Area
648.0 sq mi
#41 of 115 in Missouri · #1,456 in US
Density
8.9 / sq mi
#109 of 115 in Missouri · #2,606 in US
Median household income
$51,492
#88 of 115 in Missouri · #2,602 in US

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

Sullivan County within Missouri. Pin: Jefferson City.

Measure from here

Tools and pages that start from Sullivan County

Sullivan County population, land area and income

Sullivan County had 5,750 residents in the Census Vintage 2024 estimate, on 648.0 square miles of land. It ranks 106th of 115 in Missouri by population and 41st by land area. That works out to 8.9 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Missouri has 19,100 residents, so Sullivan County has 30% of the typical county's population.

Its SAIPE 2023 median household income of $51,492 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

5,750

3144th1st

2757th of 3,144 (US)

Land area

648 sq mi

3144th1st

1456th of 3,144 (US)

Density

8.9 / sq mi

3144th1st

2606th of 3,144 (US)

Median household income

$51,492

3143rd1st

2602nd of 3,143 (US)

Rank within Missouri (115)

Population

5,750

115th1st

106th of 115 (MO)

Land area

648 sq mi

115th1st

41st of 115 (MO)

Density

8.9 / sq mi

115th1st

109th of 115 (MO)

Median household income

$51,492

115th1st

88th of 115 (MO)

How Sullivan County's population changed since 2020

Sullivan County lost 226 residents between the July 2020 and July 2024 estimates, a drop of 3.8%. That ranks 109th 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, Sullivan County recorded 301 births and 328 deaths, a natural change of -27. Net international migration added +74 and net domestic migration, people moving to or from other US counties, came to -281. The largest single component was domestic migration, which removed 281 people.

5,97620205,89120215,82820225,84120235,7502024
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
301
Deaths
328
Net international migration
+74
Net domestic migration
-281
Change, July 2023 to July 2024
-91

Where Sullivan County is

The Census internal point of Sullivan County is at 40.209600, -93.109800. 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 Sullivan 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: Sullivan County internal point. Dark pin: Jefferson City.

Internal point

Decimal
40.209600, -93.109800
DMS
40°12'34.56"N 93°06'35.28"W
UTM
15N 490656.2E 4451027.0N
Geohash
9zju9pztb
Plus code
86G86V5R+R3

Towns in Sullivan County

One incorporated place of 1,000+ people has residents in Sullivan County, 1,749 people together, or 30% of the county. Each figure counts only the part of the town inside Sullivan County; towns marked "part" extend into another county. The largest is Milan with 1,749.

  1. 01Milan1,749
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Sullivan County

The Census 2024 county adjacency file lists 5 neighbors for Sullivan County. The most populous is Adair County, MO, with 25,660 residents. Distances run between Census internal points in a straight line.

Distance to Jefferson City and the nearest big city

Jefferson City is 123.3 miles SSE of Sullivan County's internal point in a straight line. The nearest place of 100,000 or more is Columbia, MO (population 130,900), 96.7 miles away. The nearest place of 10,000 or more is Kirksville, MO (population 17,841), 28.3 miles away.

Sullivan County FIPS code

The FIPS code of Sullivan County is 29211: state code 29 for Missouri plus county code 211. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $51,492.

Questions people ask

What is the population of Sullivan County, Missouri?

The Census Vintage 2024 estimate for July 1, 2024 is 5,750. That is down 226 people (3.8%) from the July 2020 estimate of 5,976.

What is the FIPS code of Sullivan County?

29211. The first two digits (29) are Missouri; the last three (211) identify the county.

What is the largest town in Sullivan County?

Milan, with 1,749 residents inside Sullivan County in 2024.

Which counties border Sullivan County?

5 county-equivalents border it in the Census 2024 adjacency file: Adair County, MO; Linn County, MO; Grundy County, MO; Putnam County, MO; Mercer 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.