Platte County, Missouri
Platte County, Missouri, has 114,400 residents (July 2025 estimate). Its county seat is Platte City. It uses Central Time and covers 420 sq mi (1,087 km²) of land.
- Resident population, July 2025
- 114,400
- Land area
- 420 sq mi (1,087 km²)
- County seat or government
- Platte City
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $96,227 ± $2,175
- Median home value
- $345,100 ± $8,630
- Median rent, with utilities
- $1,334 ± $39
- Homes lived in by their owners
- 67.4% ± 1.4 points
- County type
- County
- Metro or micro area
- Kansas City, MO-KS metro areaCentral county
- Water area
- 6.52 sq mi (16.9 km²)
- State
- Missouri
- County code (FIPS)
- 29165
- Coordinates (central point)
- 39.378690, -94.761476
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Platte County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 6411841,984 people
- 6415231,545 people
- 6415528,824 people
- 6415128,526 people
- 6407915,160 people
- 6408914,380 people
- 6415413,851 people
- 641536,653 people
- 641504,463 people
- 640983,311 people
- 644921,713 people
- 644391,537 people
All 20
20 ZIP Code areas overlap Platte County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Platte County, largest first
- May Township30,334 people
- Carroll Township18,497 people
- Fox Township14,307 people
- Sioux Township13,284 people
- Pawnee Township10,587 people
- Kickapoo Township6,800 people
- Pettis Township5,798 people
- Weston Township2,598 people
- Green Township2,115 people
- Preston Township1,688 people
- Fair Township1,460 people
- Waldron Township1,224 people
All 14
- Marshall Township930 people
- Lee Township749 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Missouri, by county
School districts in Platte County, largest first
- North Kansas City 74 School District144,320 people
- Park Hill School District77,197 people
- Platte County R-III School District27,544 people
- Smithville R-II School District14,791 people
- East Buchanan County C-1 School District4,560 people
- West Platte County R-II School District4,208 people
- North Platte County R-I School District4,179 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Kansas City, Missouri (city)510,612 people
- Smithville, Missouri (city)10,705 people
- Parkville, Missouri (city)8,366 people
- Platte City, Missouri (city)4,824 people
- Riverside, Missouri (city)4,276 people
- Weatherby Lake, Missouri (city)2,401 people
- Weston, Missouri (city)1,922 people
- Lake Waukomis, Missouri (city)1,170 people
- Ferrelview, Missouri (village)752 people
- Dearborn, Missouri (city)557 people
- Platte Woods, Missouri (city)532 people
- Edgerton, Missouri (city)518 people
All 20
- Camden Point, Missouri (city)401 people
- Northmoor, Missouri (city)371 people
- Farley, Missouri (village)309 people
- Tracy, Missouri (city)309 people
- Houston Lake, Missouri (city)271 people
- Ridgely, Missouri (village)84 people
- New Market, Missouri (CDP)52 people
- Iatan, Missouri (village)38 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Wyandotte County, Kansas18 mi south
- Clay County, Missouri19 mi east
- Buchanan County, Missouri20 mi north
- Leavenworth County, Kansas20 mi southwest
- Clinton County, Missouri25 mi northeast
- Atchison County, Kansas31 mi west
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.