Jefferson Township, Buchanan County, Iowa

Jefferson Township is a township in Buchanan County, Iowa. About 994 people live there (2020–2024 estimate). It covers 36 sq mi (93.3 km²) of land and uses Central Time. Its local government works under another unit of government.

Des MoinesCedar RapidsDavenport
Jefferson Township in Iowa
Spring Creek Township
Jefferson Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
994 ± 295
County
Buchanan County
Land area
36 sq mi (93.3 km²)
Type
TownshipGovernment under another
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$75,875 ± $15,461
Median home value
$201,800 ± $50,145
Water area
0.02 sq mi (0.05 km²)
State
Iowa
Census code (GEOID)
1901992208
Coordinates (central point)
42.334017, -91.992953

These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Census place in Jefferson Township

  1. Brandon (city)307 people

This place’s central point lies inside Jefferson Township. A place can reach across the line, and its government, if it has one, can be separate from the township’s.

Bordering areas, nearest first

  1. Homer Township5.3 mi east
  2. Harrison Township, Benton County6.0 mi south
  3. Spring Creek Township, Black Hawk County6.3 mi west
  4. Westburg Township6.4 mi north
  5. Cedar Township, Benton County8.0 mi southwest

These towns, townships, cities and boroughs share a boundary with Jefferson Township. Distances are straight lines between central points, not driving distances.

Other townships in Buchanan County, largest first

  1. Washington Township4,272 people
  2. Perry Township3,197 people
  3. Sumner Township3,093 people
  4. Fairbank Township1,657 people
  5. Hazleton Township1,594 people
  6. Liberty Township1,237 people
  7. Byron Township1,215 people
  8. Westburg Township726 people
  9. Madison Township668 people
  10. Homer Township628 people
  11. Buffalo Township424 people
  12. Cono Township307 people
All 15
  1. Middlefield Township274 people
  2. Fremont Township221 people
  3. Newton Township187 people

People counts are American Community Survey 2020–2024 5-year estimates. See Buchanan County for its cities, ZIP Code areas and county seat.

Sunrise and sunset in Jefferson Township

Longest day
15 hours 17 minutes around June 21
Shortest day
9 hours 5 minutes around December 21
Earliest sunrise
5:30 AM around June 15
Latest sunrise
7:47 AM the day before clocks go back in November
Earliest sunset
4:35 PM around December 9
Latest sunset
8:48 PM around June 27

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 157:34 AM5:00 PM9 h 26 min
Feb 157:04 AM5:40 PM10 h 36 min
Mar 157:20 AM7:14 PM11 h 54 min
Apr 156:27 AM7:49 PM13 h 22 min
May 155:46 AM8:22 PM14 h 36 min
Jun 155:30 AM8:46 PM15 h 16 min
Jul 155:44 AM8:42 PM14 h 58 min
Aug 156:15 AM8:09 PM13 h 54 min
Sep 156:47 AM7:17 PM12 h 30 min
Oct 157:20 AM6:26 PM11 h 6 min
Nov 156:58 AM4:46 PM9 h 48 min
Dec 157:29 AM4:36 PM9 h 7 min

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Before using this answer on a form

A township line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Buchanan County or the local office.

Find the township or town where you are now or find your county.

See this area on Census.gov ↗