• county
  • FIPS 20005
  • Largest town: Atchison

Atchison County, Kansas

Atchison County had 16,249 residents in the Census Vintage 2024 estimate, on 431.2 square miles of land. It ranks 31st of 105 in Kansas by population and 102nd by land area.

Population
16,249
#31 of 105 in Kansas · #2,017 in US
Area
431.2 sq mi
#102 of 105 in Kansas · #2,355 in US
Density
38 / sq mi
#18 of 105 in Kansas · #1,726 in US
Median household income
$65,818
#33 of 105 in Kansas · #1,312 in US

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

Atchison County within Kansas. Pin: Topeka.

Measure from here

Tools and pages that start from Atchison County

Atchison County population, land area and income

Atchison County had 16,249 residents in the Census Vintage 2024 estimate, on 431.2 square miles of land. It ranks 31st of 105 in Kansas by population and 102nd by land area. That works out to 37.7 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Kansas has 6,946 residents, so Atchison County is 2.3 times that size.

Its SAIPE 2023 median household income of $65,818 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

16,249

3144th1st

2017th of 3,144 (US)

Land area

431 sq mi

3144th1st

2355th of 3,144 (US)

Density

37.7 / sq mi

3144th1st

1726th of 3,144 (US)

Median household income

$65,818

3143rd1st

1312th of 3,143 (US)

Rank within Kansas (105)

Population

16,249

105th1st

31st of 105 (KS)

Land area

431 sq mi

105th1st

102nd of 105 (KS)

Density

37.7 / sq mi

105th1st

18th of 105 (KS)

Median household income

$65,818

105th1st

33rd of 105 (KS)

How Atchison County's population changed since 2020

Atchison County lost 76 residents between the July 2020 and July 2024 estimates, a drop of 0.5%. That ranks 37th of 105 in Kansas for growth. The median Kansas county changed by -1.0%, and the state as a whole by +1.1%.

Since the April 2020 estimates base, Atchison County recorded 720 births and 761 deaths, a natural change of -41. Net international migration added +90 and net domestic migration, people moving to or from other US counties, came to -152. The largest single component was domestic migration, which removed 152 people.

16.3k202016.2k202116.1k202216.1k202316.2k2024
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
720
Deaths
761
Net international migration
+90
Net domestic migration
-152
Change, July 2023 to July 2024
+107

Where Atchison County is

The Census internal point of Atchison County is at 39.532500, -95.313400. It sits in UTM zone 15N. The map shades Kansas's 105 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Atchison County outlined. Dots are towns of 1,000+ people with residents in it.

Harper County: -1.0%Phillips County: -4.6%Seward County: -2.7%Grant County: -3.1%Pawnee County: -3.8%Haskell County: -4.5%Ness County: -2.3%Logan County: -1.8%Wichita County: -3.6%Greenwood County: -1.7%Stanton County: -0.7%Edwards County: -5.3%Gray County: +1.6%Franklin County: +1.0%Saline County: -1.5%Allen County: -0.9%Lyon County: +1.3%Cloud County: -3.3%Brown County: -3.6%Rice County: -1.1%Lincoln County: -0.6%Osborne County: -4.0%Rooks County: -2.8%Russell County: -0.8%Jefferson County: +0.0%Jewell County: -1.0%Lane County: -5.6%Sheridan County: -1.9%Gove County: -2.1%Trego County: -1.1%Montgomery County: -3.0%Sumner County: +0.1%Graham County: -1.5%Marion County: -1.0%Washington County: +0.8%Stevens County: -4.0%Kiowa County: -0.7%Mitchell County: +0.4%Cheyenne County: +1.3%Ellis County: +0.2%Rush County: -4.6%Scott County: -4.3%Comanche County: +0.7%Wallace County: -2.6%Nemaha County: -2.0%Linn County: +2.6%Ford County: -0.4%Dickinson County: +1.4%Ellsworth County: -0.9%Labette County: -2.3%Cowley County: -1.0%Neosho County: -2.2%Wilson County: -2.2%Thomas County: -1.7%Greeley County: -9.6%Osage County: -0.0%Finney County: +0.1%Kearny County: -3.8%Kingman County: -6.4%Republic County: -1.3%Ottawa County: +2.1%Smith County: -0.5%Crawford County: -0.1%Elk County: -1.5%Miami County: +4.4%Hodgeman County: -3.7%Morris County: -1.7%Morton County: -8.1%Harvey County: -1.0%Meade County: -4.2%Sedgwick County: +2.1%Geary County: -3.6%Woodson County: +0.4%Bourbon County: +0.6%Chase County: -2.6%Pratt County: -0.0%Reno County: -0.8%Chautauqua County: -1.2%Norton County: -2.1%Marshall County: -0.7%Doniphan County: +1.4%Cherokee County: -0.9%Barton County: -2.3%Riley County: +0.8%Butler County: +2.6%Stafford County: -3.7%Anderson County: +0.9%Sherman County: -1.8%Rawlins County: -5.5%Pottawatomie County: +5.7%McPherson County: +0.5%Coffey County: -0.7%Hamilton County: +0.0%Atchison County: -0.5%Shawnee County: -0.4%Leavenworth County: +3.3%Jackson County: +2.2%Clark County: -5.3%Douglas County: +2.7%Clay County: -1.9%Barber County: -3.2%Johnson County: +3.5%Wabaunsee County: +3.2%Decatur County: -1.1%Wyandotte County: +0.3%
Change 2020 to 2024
  1. < -3.6%
  2. < -1.7%
  3. < -0.7%
  4. < +0.6%
  5. ≥ +0.6%
no data

Orange pin: Atchison County internal point. Dark pin: Topeka.

Internal point

Decimal
39.532500, -95.313400
DMS
39°31'57.00"N 95°18'48.24"W
UTM
15N 301178.5E 4378427.0N
Geohash
9zh0zhdvs
Plus code
86F6GMMP+2J

Towns in Atchison County

One incorporated place of 1,000+ people has residents in Atchison County, 10,813 people together, or 67% of the county. Each figure counts only the part of the town inside Atchison County; towns marked "part" extend into another county. The largest is Atchison with 10,813.

  1. 01Atchison10,813
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Atchison County

The Census 2024 county adjacency file lists 7 neighbors for Atchison County, including 2 across a state line. The most populous is Platte County, MO, with 113,207 residents. Distances run between Census internal points in a straight line.

Distance to Topeka and the nearest big city

Topeka is 38.8 miles SSW of Atchison County's internal point in a straight line. The nearest place of 100,000 or more is Topeka, KS (population 125,467), 40.0 miles away. The nearest place of 10,000 or more is Atchison, KS (population 10,813), 9.6 miles away.

Atchison County FIPS code

The FIPS code of Atchison County is 20005: state code 20 for Kansas plus county code 005. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $65,818.

Questions people ask

What is the population of Atchison County, Kansas?

The Census Vintage 2024 estimate for July 1, 2024 is 16,249. That is down 76 people (0.5%) from the July 2020 estimate of 16,325.

What is the FIPS code of Atchison County?

20005. The first two digits (20) are Kansas; the last three (005) identify the county.

What is the largest town in Atchison County?

Atchison, with 10,813 residents inside Atchison County in 2024.

Which counties border Atchison County?

7 county-equivalents border it in the Census 2024 adjacency file: Platte County, MO; Leavenworth County, KS; Buchanan County, MO; Jefferson County, KS; Jackson County, KS; Brown County, KS; Doniphan County, KS.

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.