• county
  • FIPS 29165
  • Largest town: Kansas City

Platte County, Missouri

Platte County had 113,207 residents in the Census Vintage 2024 estimate, on 419.8 square miles of land. It ranks 11th of 115 in Missouri by population and 105th by land area.

Population
113,207
#11 of 115 in Missouri · #564 in US
Area
419.8 sq mi
#105 of 115 in Missouri · #2,414 in US
Density
270 / sq mi
#9 of 115 in Missouri · #474 in US
Median household income
$96,353
#2 of 115 in Missouri · #170 in US

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

Platte County within Missouri. Pin: Jefferson City.

Measure from here

Tools and pages that start from Platte County

Platte County population, land area and income

Platte County had 113,207 residents in the Census Vintage 2024 estimate, on 419.8 square miles of land. It ranks 11th of 115 in Missouri by population and 105th by land area. That works out to 269.7 people per square mile, 2.8 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Missouri has 19,100 residents, so Platte County is 5.9 times that size.

Its SAIPE 2023 median household income of $96,353 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

113,207

3144th1st

564th of 3,144 (US)

Land area

420 sq mi

3144th1st

2414th of 3,144 (US)

Density

269.7 / sq mi

3144th1st

474th of 3,144 (US)

Median household income

$96,353

3143rd1st

170th of 3,143 (US)

Rank within Missouri (115)

Population

113,207

115th1st

11th of 115 (MO)

Land area

420 sq mi

115th1st

105th of 115 (MO)

Density

269.7 / sq mi

115th1st

9th of 115 (MO)

Median household income

$96,353

115th1st

2nd of 115 (MO)

How Platte County's population changed since 2020

Platte County gained 6,017 residents between the July 2020 and July 2024 estimates, a rise of 5.6%. That ranks 13th 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, Platte County recorded 5,048 births and 3,824 deaths, a natural change of +1,224. Net international migration added +1,371 and net domestic migration, people moving to or from other US counties, came to +3,864. The largest single component was domestic migration, which added 3,864 people.

107.2k2020108.8k2021110.6k2022112.1k2023113.2k2024
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
5,048
Deaths
3,824
Net international migration
+1,371
Net domestic migration
+3,864
Change, July 2023 to July 2024
+1,095

Where Platte County is

The Census internal point of Platte County is at 39.378700, -94.761500. 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 Platte 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: Platte County internal point. Dark pin: Jefferson City.

Internal point

Decimal
39.378700, -94.761500
DMS
39°22'43.32"N 94°45'41.40"W
UTM
15N 348280.3E 4360282.6N
Geohash
9zh858sv9
Plus code
86F796HQ+F9

Towns in Platte County

7 incorporated places of 1,000+ people have residents in Platte County, 77,785 people together, or 69% of the county. Each figure counts only the part of the town inside Platte County; towns marked "part" extend into another county. The largest is Kansas City with 55,477.

  1. 01Kansas City (part)55,477
  2. 02Parkville8,980
  3. 03Platte City4,867
  4. 04Riverside4,498
  5. 05Weatherby Lake2,125
  6. 06Weston1,837
  7. 07Smithville (part)1
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Platte County

The Census 2024 county adjacency file lists 6 neighbors for Platte County, including 3 across a state line. The most populous is Clay County, MO, with 263,370 residents. Distances run between Census internal points in a straight line.

Distance to Jefferson City and the nearest big city

Jefferson City is 149.6 miles ESE of Platte County's internal point in a straight line. The nearest place of 100,000 or more is Kansas City, KS (population 156,752), 17.7 miles away. The nearest place of 10,000 or more is Leavenworth, KS (population 37,370), 9.6 miles away.

Platte County FIPS code

The FIPS code of Platte County is 29165: state code 29 for Missouri plus county code 165. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $96,353.

Questions people ask

What is the population of Platte County, Missouri?

The Census Vintage 2024 estimate for July 1, 2024 is 113,207. That is up 6,017 people (5.6%) from the July 2020 estimate of 107,190.

What is the FIPS code of Platte County?

29165. The first two digits (29) are Missouri; the last three (165) identify the county.

What is the largest town in Platte County?

Kansas City, with 55,477 residents inside Platte County in 2024 (516,032 across all 4 counties it spans).

Which counties border Platte County?

6 county-equivalents border it in the Census 2024 adjacency file: Clay County, MO; Wyandotte County, KS; Leavenworth County, KS; Buchanan County, MO; Clinton County, MO; Atchison 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.