Town of Jefferson, Jefferson County, Wisconsin

The Town of Jefferson is a town in Jefferson County, Wisconsin. About 1,916 people live there (2020–2024 estimate). It covers 42.5 sq mi (110 km²) of land and uses Central Time. It has its own local government.

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Town of Jefferson in Wisconsin
Town of Jefferson and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
1,916 ± 319
County
Jefferson County
School district
Jefferson School District
Land area
42.5 sq mi (110 km²)
Type
TownIts own local government
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$99,667 ± $35,158
Median home value
$405,600 ± $80,704
Water area
0.45 sq mi (1.16 km²)
State
Wisconsin
Census code (GEOID)
5505537925
Coordinates (central point)
42.972663, -88.787067

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 the Town of Jefferson

  1. Helenville (CDP)96 people

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

Bordering areas, nearest first

  1. Jefferson (city)2.4 mi northwest
  2. Town of Hebron4.2 mi southeast
  3. Fort Atkinson (city)4.5 mi southwest
  4. Town of Koshkonong6.0 mi southwest
  5. Town of Aztalan6.2 mi northwest
  6. Town of Farmington7.2 mi northeast
  7. Town of Oakland8.1 mi west
  8. Town of Sullivan8.8 mi east

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

Other towns in Jefferson County, largest first

  1. Town of Ixonia5,078 people
  2. Town of Koshkonong3,748 people
  3. Town of Oakland3,222 people
  4. Town of Lake Mills2,317 people
  5. Town of Sullivan2,029 people
  6. Town of Watertown1,850 people
  7. Town of Concord1,744 people
  8. Town of Farmington1,309 people
  9. Town of Milford1,164 people
  10. Town of Aztalan1,155 people
  11. Town of Hebron1,153 people
  12. Town of Palmyra1,146 people
All 15
  1. Town of Cold Spring1,019 people
  2. Town of Waterloo934 people
  3. Town of Sumner824 people

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

Sunrise and sunset in the Town of Jefferson

Longest day
15 hours 21 minutes around June 21
Shortest day
9 hours around December 21
Earliest sunrise
5:15 AM around June 15
Latest sunrise
7:35 AM the day before clocks go back in November
Earliest sunset
4:20 PM around December 9
Latest sunset
8:38 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 157:23 AM4:45 PM9 h 22 min
Feb 156:52 AM5:26 PM10 h 34 min
Mar 157:07 AM7:01 PM11 h 54 min
Apr 156:13 AM7:37 PM13 h 24 min
May 155:32 AM8:11 PM14 h 39 min
Jun 155:15 AM8:35 PM15 h 20 min
Jul 155:29 AM8:32 PM15 h 3 min
Aug 156:00 AM7:57 PM13 h 57 min
Sep 156:34 AM7:05 PM12 h 31 min
Oct 157:08 AM6:12 PM11 h 4 min
Nov 156:47 AM4:31 PM9 h 44 min
Dec 157:19 AM4:21 PM9 h 2 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 town 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 Jefferson County or the local office.

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

See this area on Census.gov ↗