Jefferson, Iowa

Jefferson, Iowa
Greene County Courthouse in Jefferson
Greene County Courthouse in Jefferson
Location of Jefferson, Iowa
Location of Jefferson, Iowa
Coordinates: 42°01′09″N 94°22′48″W / 42.01917°N 94.38000°W / 42.01917; -94.38000
Country United States
State Iowa
CountyGreene
Area
 • Total6.01 sq mi (15.57 km2)
 • Land5.97 sq mi (15.46 km2)
 • Water0.04 sq mi (0.10 km2)
Elevation1,056 ft (322 m)
Population
 • Total4,182
 • Density695.6/sq mi (268.59/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
50129
Area code515
FIPS code19-39450
GNIS feature ID468135[2]
Websitecityofjeffersoniowa.org

Jefferson is a city in, and the county seat of Greene County, Iowa,[4] United States, along the North Raccoon River. The population was 4,182 at the time of the 2020 census.[3] It is the home of the Mahanay Memorial Bell Tower, 168 feet (51 m) tall, located on the town square, and visible for miles. The tower is named for Floyd Mahanay, a businessman, philanthropist, and former resident. Jefferson is bisected east to west by the old Lincoln Highway (formerly U.S. 30). A new U.S. Route 30 is located approximately one mile to the north.

  1. ^ Cite error: The named reference Gazetteer files was invoked but never defined (see the help page).
  2. ^ a b U.S. Geological Survey Geographic Names Information System: Jefferson, Iowa
  3. ^ a b "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
  4. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.