Platte County | |
|---|---|
 Platte County Courthouse | |
 Flag | |
 Location within the U.S. state of Missouri | |
 Missouri's location within the U.S. | |
| Coordinates: 39°23′N 94°46′W / 39.38°N 94.77°W | |
| Country |  United States |
| State |  Missouri |
| Founded | December 31, 1838 |
| Named for | Platte River or Platte Purchase |
| Seat | Platte City |
| Largest city | Kansas City |
| Area | |
• Total | 427 sq mi (1,110 km2) |
| • Land | 420 sq mi (1,100 km2) |
| • Water | 6.6 sq mi (17 km2) 1.5% |
| Population (2020) | |
• Total | 106,718 |
| • Density | 250/sq mi (96/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 6th |
| Website | www |
Platte County is a county located in the northwestern portion of the U.S. state of Missouri and is part of the Kansas City metropolitan area. As of the 2020 census, the population was 106,718. Its county seat is Platte City.[1] The county was organized December 31, 1838,[2] from the Platte Purchase,[3] named for the Platte River. (Platte is derived from the French word for a low, shallow, or intermittent stream.) The Kansas City International Airport is located in the county, approximately one mile west of Interstate 29 between mile markers 12 and 15. The land for the airport was originally in an unincorporated portion of Platte County before being annexed by Platte City, and eventually Kansas City.
- ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
- ^ "Platte County History". Platte County, Missouri. Archived from the original on March 24, 2015. Retrieved November 25, 2014.
- ^ Soil Survey (Platte County, Missouri ed.). U.S. Dept of Agriculture. 1923. p. 2. Retrieved January 19, 2015.