• county
  • FIPS 29103
  • Largest town: Edina

Knox County, Missouri

Knox County had 3,740 residents in the Census Vintage 2024 estimate, on 504.0 square miles of land. It ranks 113th of 115 in Missouri by population and 81st by land area.

Population
3,740
#113 of 115 in Missouri · #2,903 in US
Area
504.0 sq mi
#81 of 115 in Missouri · #2,061 in US
Density
7.4 / sq mi
#112 of 115 in Missouri · #2,669 in US
Median household income
$50,083
#94 of 115 in Missouri · #2,715 in US

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

Knox County within Missouri. Pin: Jefferson City.

Measure from here

Tools and pages that start from Knox County

Knox County population, land area and income

Knox County had 3,740 residents in the Census Vintage 2024 estimate, on 504.0 square miles of land. It ranks 113th of 115 in Missouri by population and 81st by land area. That works out to 7.4 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 Knox County has 20% of the typical county's population.

Its SAIPE 2023 median household income of $50,083 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

3,740

3144th1st

2903rd of 3,144 (US)

Land area

504 sq mi

3144th1st

2061st of 3,144 (US)

Density

7.4 / sq mi

3144th1st

2669th of 3,144 (US)

Median household income

$50,083

3143rd1st

2715th of 3,143 (US)

Rank within Missouri (115)

Population

3,740

115th1st

113th of 115 (MO)

Land area

504 sq mi

115th1st

81st of 115 (MO)

Density

7.4 / sq mi

115th1st

112th of 115 (MO)

Median household income

$50,083

115th1st

94th of 115 (MO)

How Knox County's population changed since 2020

Knox County gained 1 residents between the July 2020 and July 2024 estimates, a rise of 0.0%. That ranks 80th 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, Knox County recorded 206 births and 227 deaths, a natural change of -21. Net international migration added +0 and net domestic migration, people moving to or from other US counties, came to +23. The largest single component was domestic migration, which added 23 people.

3,73920203,78620213,77720223,73620233,7402024
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
206
Deaths
227
Net international migration
+0
Net domestic migration
+23
Change, July 2023 to July 2024
+4

Where Knox County is

The Census internal point of Knox County is at 40.136900, -92.146800. 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 Knox 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: Knox County internal point. Dark pin: Jefferson City.

Internal point

Decimal
40.136900, -92.146800
DMS
40°08'12.84"N 92°08'48.48"W
UTM
15N 572683.7E 4443300.8N
Geohash
9znkr4swr
Plus code
86G94VP3+Q7

Towns in Knox County

One incorporated place of 1,000+ people has residents in Knox County, 1,012 people together, or 27% of the county. Each figure counts only the part of the town inside Knox County; towns marked "part" extend into another county. The largest is Edina with 1,012.

  1. 01Edina1,012
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Knox County

The Census 2024 county adjacency file lists 6 neighbors for Knox 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 107.6 miles S of Knox County's internal point in a straight line. The nearest place of 100,000 or more is Columbia, MO (population 130,900), 82.8 miles away. The nearest place of 10,000 or more is Kirksville, MO (population 17,841), 23.0 miles away.

Knox County FIPS code

The FIPS code of Knox County is 29103: state code 29 for Missouri plus county code 103. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $50,083.

Questions people ask

What is the population of Knox County, Missouri?

The Census Vintage 2024 estimate for July 1, 2024 is 3,740. That is up 1 people (0.0%) from the July 2020 estimate of 3,739.

What is the FIPS code of Knox County?

29103. The first two digits (29) are Missouri; the last three (103) identify the county.

What is the largest town in Knox County?

Edina, with 1,012 residents inside Knox County in 2024.

Which counties border Knox County?

6 county-equivalents border it in the Census 2024 adjacency file: Adair County, MO; Macon County, MO; Lewis County, MO; Clark County, MO; Shelby County, MO; Scotland 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.