File:JeffersonCountyCourthouseWIS26.jpg · Wikimedia Commons · See Wikimedia Commons
Jefferson County
Sign in to saveAlso known as Jefferson County, Wisconsin, Jefferson County, WI
county in Wisconsin, United States
Key facts
- Country
- United States
- State
- Wisconsin
- Named after
- Thomas Jefferson
- Seat
- Jefferson
- Largest city
- Watertown
- Total
- 583 sq mi (1,510 km )
- Land
- 556 sq mi (1,440 km )
- Water
- 26 sq mi (67 km ) 4.5%
- Estimate 2025
- 86,505
- Density
- 153/sq mi (59.0/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- 5th
- Website
- www .jeffersoncountywi .gov
via Wikipedia infobox
Wikidata facts
- Population
- 84900
- Area
- 1509
- Official website
- www.jeffersoncountywi.gov
- Image
- JeffersonCountyCourthouseWIS26.jpg
- Households
- 33349
Show 6 more facts
- Commons category
- Jefferson County, Wisconsin
- Commons gallery
- Jefferson County, Wisconsin
- inception
- 1836-00-00
- water as percent of area
- 4.5
- native label
- Jefferson County
- per capita income
- 33461
Sources (8)
via Wikidata · CC0
~7 min read
Article
Jefferson County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 84,900. Its county seat is Jefferson. Jefferson County comprises the Watertown-Fort Atkinson, WI Micropolitan Statistical Area, which is also included in the Milwaukee-Racine-Waukesha, WI Combined Statistical Area.
History
Gallery (6)
On the map
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Sumner
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Aztalan
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Oakland
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African Americans
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United States Census Bureau
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Native Hawaiians
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Concord
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Cold Spring
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Milford
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Farmington
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race and ethnicity in the United States Census
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United States
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marriage
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Wisconsin
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Thomas Jefferson
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time zone
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Lyndon B. Johnson
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geographic coordinate system
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International Standard Book Number
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