County · Missouri
Platte County, Missouri
Platte County, Missouri. Platte County had 114,400 residents in 2025 by the Census Bureau's estimate, up 7.2% since 2020, faster than Missouri (+1.9%). It holds 20 places (19 cities, villages and boroughs and 1 census-designated) and 27 census tracts. GEOID 29165.
Platte County is one of the 14 counties of the Kansas City, MO-KS metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
114,400
Census Bureau estimate (no margin published)
2020 Census count: 106,718 · ACS 2020-2024: 110,371
Median household income
$96,227
±$2,175 (90% margin)
Missouri: $70,702
Median home value
$345,100
±$8,630 (90% margin)
Missouri: $230,300
Median gross rent
$1,334
±$39 (90% margin)
Missouri: $1,033
How many people live in Platte County, and is it growing?
The 2020 Census counted 106,718 residents in Platte County. The Census Bureau estimates 114,400 for July 1, 2025, up 7.2% since 2020, faster than Missouri (+1.9%). The 2020-2024 American Community Survey puts the population at 110,371 over 420 square miles of land.
| Measure | Platte County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Total population | 110,371 | 6,191,814 | +9,689 |
| Households | 43,902±480 | 2,508,227 | +4,597 |
| Average household size | 2.49±0.03 | 2.40 | −0.05 |
| Housing units | 46,606±73 | 2,825,287 | +4,830 |
Platte County's population since 2000
From 73,781 in 2000 to 114,400 in 2025: up 55.1%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Platte County?
Platte County holds 20 places: 19 cities, villages and boroughs (incorporated places) and 1 census-designated place. The largest is Kansas City with 521,220 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Kansas City | 508,090 | $69,166 |
|---|---|---|
| Parkville | 7,117 | $171,271 |
| Platte City | 4,784 | $71,498 |
| Riverside | 4,013 | $52,006 |
| Weatherby Lake | 2,077 | $152,500 |
| Weston | 1,756 | $88,750 |
| Lake WaukomisGEOID 2940322 | 888 | $128,702 |
| Ferrelview | 642 | $45,938 |
| Edgerton | 601 | $78,393 |
| Dearborn | 482 | $49,750 |
| Camden Point | 457 | $76,250 |
| Platte WoodsGEOID 2958196 | 394 | $131,458 |
| NorthmoorGEOID 2953174 | 291 | $82,500 |
| TracyGEOID 2973690 | 269 | $75,938 |
| Farley | 265 | $124,375 |
| Houston LakeGEOID 2933292 | 229 | $106,875 |
| RidgelyGEOID 2961886 | 95 | $71,875 |
| New MarketGEOID 2952130 | 88 | not published |
| IatanGEOID 2934210 | 39 | $86,250 |
| Smithville | 10,406 | $101,165 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Platte County?
The median resident of Platte County is 39.1 years old; 23.1% are under 18 and 16.1% are 65 or older. The largest group is non-Hispanic white residents at 76.7%, then non-Hispanic Black residents at 7.5%. 5.7% of residents were born outside the United States.
| Measure | Platte County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.1±0.4 | 39.0 | +0.9 |
| Under 18 years | 23.1% | 22.3% | – |
| 65 years and over | 16.1% | 17.9% | – |
| Hispanic or Latino (any race) | 7.2% | 5.2% | +1.2 pts |
| White alone, not Hispanic | 76.7%±0.4 pts | 76.3% | −4.3 pts |
| Black or African American alone, not Hispanic | 7.5%±0.5 pts | 10.9% | +0.8 pts |
| Asian alone, not Hispanic | 2.5%±0.2 pts | 2.1% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.2%±0.2 pts | 0.1% | – |
| Two or more races, not Hispanic | 5.2%±0.6 pts | 4.8% | – |
| Some other race alone, not Hispanic | 0.6%±0.3 pts | 0.4% | – |
| Born outside the United States | 5.7%±0.7 pts | 4.5% | no clear change |
| Speak a language other than English at home (age 5+) | 8.2%±0.8 pts | 6.7% | – |
| Civilian veterans (age 18+) | 8.0%±0.7 pts | 7.3% | – |
| With a disability | 12.6%±0.8 pts | 14.9% | – |
| No health insurance coverage | 6.1%±0.7 pts | 8.8% | no clear change |
| High school graduate or higher (age 25+) | 96.7%±0.4 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 46.5%±1.4 pts | 32.4% | +3.4 pts |
| Graduate or professional degree (age 25+) | 18.0%±1.2 pts | 12.6% | – |
| Moved from another state in the past year | 4.1%±0.7 pts | 2.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Platte County earn?
Half of Platte County's 43,902 households earn less than $96,227 a year (±$2,175), against $70,702 in Missouri. In 2015-2019 it was $98,939 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.0% of residents live below the poverty line.
| Measure | Platte County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $96,227±$2,175 | $70,702 | no clear change |
| Mean household income | $125,410±$3,995 | $96,247 | – |
| Per capita income | $50,574±$1,499 | $39,695 | no clear change |
| People below the poverty line | 7.0%±1.0 pts | 12.6% | no clear change |
| Children under 18 below the poverty line | 9.0%±2.1 pts | 15.8% | no clear change |
| Households receiving SNAP | 4.2%±0.8 pts | 9.8% | – |
| Households with a broadband subscription | 93.2%±0.9 pts | 89.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Platte County?
Owners occupy 67.4% of Platte County's occupied homes and renters 32.6%. The median owner-occupied home is valued at $345,100 by its owner (±$8,630). The median renter pays $1,334 a month including utilities, and 33.4% of renters pay 35% or more of their income on rent.
| Measure | Platte County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $345,100±$8,630 | $230,300 | +$66,348 |
| Median gross rent | $1,334±$39 | $1,033 | +$80 |
| Renters paying 35% or more of income on rent | 33.4%±3.5 pts | 36.6% | no clear change |
| Median monthly owner costs, with a mortgage | $1,991±$53 | $1,524 | – |
| Owner-occupied homes | 67.4%±1.5 pts | 68.1% | no clear change |
| Housing units | 46,606±73 | 2,825,287 | +4,830 |
| Homeowner vacancy rate | 0.4%±0.3 pts | 0.9% | – |
| Rental vacancy rate | 6.2%±1.8 pts | 5.0% | – |
| Single-family detached homes | 67.3%±1.7 pts | 70.5% | – |
| Mobile homes | 0.5%±0.2 pts | 5.2% | – |
| Built 2020 or later | 3.0%±0.5 pts | 1.6% | – |
| Built 1939 or earlier | 3.4%±0.5 pts | 13.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Platte County building?
Builders took permits for 425 new housing units across Platte County in 2025 (228 single-family), 3.7 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Platte County get to work?
73.4% of Platte County's workers drive alone and 19.2% work from home. The average trip to work takes 24.3 minutes. The unemployment rate in 2020-2024 averaged 2.7%.
| Measure | Platte County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.5%±1.1 pts | 63.1% | – |
| Unemployment rate | 2.7%±0.6 pts | 4.0% | −1.1 pts |
| Drove alone to work | 73.4%±1.6 pts | 74.8% | – |
| Carpooled | 5.4%±0.8 pts | 8.1% | – |
| Public transportation | 0.2%±0.1 pts | 0.8% | – |
| Walked | 0.4%±0.2 pts | 1.8% | – |
| Worked from home | 19.2%±1.4 pts | 13.0% | +13.9 pts |
| Mean travel time to work | 24.3 min±0.9 | 23.5 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Platte County's census tracts?
Platte County is divided into 27 census tracts. Among those with a reliable estimate, median household income runs from $50,706 (Tract 300.02) to $184,333 (Tract 303.06).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Platte County compare with Missouri's other counties?
| Measure | Rank |
|---|---|
| Population | 11th of 115 |
| Growth 2020-2025 | 10th of 115 |
| Residents per square mile | 9th of 115 |
| Median household income | 2nd of 115 |
| Median home value | 1st of 115 |
| Median gross rent | 2nd of 115 |
| Poverty rate | 112th of 115 |
| Bachelor's degree or higher | 3rd of 115 |
| Median age | 89th of 115 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Platte County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.