Plainfield, Iowa

Plainfield, Iowa
Location of Plainfield, Iowa
Coordinates: 42°50′40″N 92°32′08″W / 42.84444°N 92.53556°W / 42.84444; -92.53556
CountryUSA
StateIowa
CountyBremer
IncorporatedOctober 17, 1895
Area
  Total
0.34 sq mi (0.87 km2)
  Land0.34 sq mi (0.87 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
942 ft (287 m)
Population
 (2020)
  Total
393
  Density1,173.13/sq mi (452.97/km2)
Time zoneUTC-6 (Central (CST))
  Summer (DST)UTC-5 (CDT)
ZIP code
50666
Area code319
FIPS code19-63210
GNIS feature ID2396218

Plainfield is a city in Bremer County, Iowa, United States. The population was 393 at the 2020 census, a decrease of 45, or 10.3%, from 438 in 2000. It is part of the WaterlooCedar Falls Metropolitan Statistical Area. The Plainfield post office was established in 1868.