• county
  • FIPS 29063
  • Largest town: Cameron

DeKalb County, Missouri

DeKalb County had 9,884 residents in the Census Vintage 2024 estimate, on 421.4 square miles of land. It ranks 85th of 115 in Missouri by population and 103rd by land area.

Population
9,884
#85 of 115 in Missouri · #2,413 in US
Area
421.4 sq mi
#103 of 115 in Missouri · #2,403 in US
Density
23 / sq mi
#69 of 115 in Missouri · #2,114 in US
Median household income
$63,946
#29 of 115 in Missouri · #1,462 in US

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

DeKalb County within Missouri. Pin: Jefferson City.

Measure from here

Tools and pages that start from DeKalb County

DeKalb County population, land area and income

DeKalb County had 9,884 residents in the Census Vintage 2024 estimate, on 421.4 square miles of land. It ranks 85th of 115 in Missouri by population and 103rd by land area. That works out to 23.5 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Missouri has 19,100 residents; DeKalb County is somewhat smaller.

Its SAIPE 2023 median household income of $63,946 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

9,884

3144th1st

2413th of 3,144 (US)

Land area

421 sq mi

3144th1st

2403rd of 3,144 (US)

Density

23.5 / sq mi

3144th1st

2114th of 3,144 (US)

Median household income

$63,946

3143rd1st

1462nd of 3,143 (US)

Rank within Missouri (115)

Population

9,884

115th1st

85th of 115 (MO)

Land area

421 sq mi

115th1st

103rd of 115 (MO)

Density

23.5 / sq mi

115th1st

69th of 115 (MO)

Median household income

$63,946

115th1st

29th of 115 (MO)

How DeKalb County's population changed since 2020

DeKalb County lost 1,712 residents between the July 2020 and July 2024 estimates, a drop of 14.8%. That ranks 115th 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, DeKalb County recorded 416 births and 620 deaths, a natural change of -204. Net international migration added +3 and net domestic migration, people moving to or from other US counties, came to -922. The largest single component was domestic migration, which removed 922 people.

11.6k202011.7k202111.3k20229,89920239,8842024
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
416
Deaths
620
Net international migration
+3
Net domestic migration
-922
Change, July 2023 to July 2024
-15

Where DeKalb County is

The Census internal point of DeKalb County is at 39.894700, -94.407200. 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 DeKalb 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: DeKalb County internal point. Dark pin: Jefferson City.

Internal point

Decimal
39.894700, -94.407200
DMS
39°53'40.92"N 94°24'25.92"W
UTM
15N 379695.4E 4417017.7N
Geohash
9zhfgwwg2
Plus code
86F7VHVV+V4

Towns in DeKalb County

2 incorporated places of 1,000+ people have residents in DeKalb County, 3,318 people together, or 34% of the county. Each figure counts only the part of the town inside DeKalb County; towns marked "part" extend into another county. The largest is Cameron with 2,230.

  1. 01Cameron (part)2,230
  2. 02Maysville1,088
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering DeKalb County

The Census 2024 county adjacency file lists 6 neighbors for DeKalb County. The most populous is Buchanan County, MO, with 83,574 residents. Distances run between Census internal points in a straight line.

Distance to Jefferson City and the nearest big city

Jefferson City is 150.2 miles SE of DeKalb County's internal point in a straight line. The nearest place of 100,000 or more is Kansas City, MO (population 516,032), 53.7 miles away. The nearest place of 10,000 or more is St. Joseph, MO (population 71,098), 23.9 miles away.

DeKalb County FIPS code

The FIPS code of DeKalb County is 29063: state code 29 for Missouri plus county code 063. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $63,946.

Questions people ask

What is the population of DeKalb County, Missouri?

The Census Vintage 2024 estimate for July 1, 2024 is 9,884. That is down 1,712 people (14.8%) from the July 2020 estimate of 11,596.

What is the FIPS code of DeKalb County?

29063. The first two digits (29) are Missouri; the last three (063) identify the county.

What is the largest town in DeKalb County?

Cameron, with 2,230 residents inside DeKalb County in 2024 (7,352 across all 2 counties it spans).

Which counties border DeKalb County?

6 county-equivalents border it in the Census 2024 adjacency file: Buchanan County, MO; Clinton County, MO; Andrew County, MO; Caldwell County, MO; Daviess County, MO; Gentry 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.