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Jefferson County, Wisconsin
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Explore Jefferson County (Click on picture)
Jefferson County, created in 1836 from Milwaukee County, is named after Thomas Jefferson, third President of the United States. Located in southeast Wisconsin, the county seat is Jefferson.
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Land Area |
557.01 sq miles |
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Water Area |
25.73 sq miles |
Elevation |
795 ft at Jefferson |
Number of Lakes |
35 |
Area in Lakes |
3,770 acres (5.89 sq miles) |
Rivers |
Ashippun, Bark, Crawfish, Rock, Scuppernong |
Major Watershed |
Rock River |
Geographical Province |
Eastern Ridges and Lowlands |
Natural Vegetation |
East: mostly sugar maple, basswood, and elm. Southeast: area of black spruce, tamarack, and cedar. West: oak savanna. Northwest and southwest: small areas of prairie bluestem and composites. West-central: small area of sedge meadow. |
Population |
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1930:
1970:
1980:
1990:
2000:
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36,785
60,060
66,152
67,783
74,021
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Border Counties |
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North:
East:
South:
West:
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Dodge County
Waukesha County
Rock County, Walworth County
Dane County
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Jefferson County Government and Local Information Resources |
County Web Site |
www.co.jefferson.wi.us |
Board of Supervisors |
Board of Supervisors |
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County Clerk |
Office of the County Clerk 320 S Main St Jefferson, WI 53549-1799 |
Phone: 920-674-7140
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Clerk of Courts |
Clerk of Circuit Courts 320 S Main St Jefferson, WI 53549-1799 |
Phone: 920-674-7150
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County Sheriff |
Sheriff 411 S Center Ave Jefferson, WI 53549 |
Phone: 920-674-7310
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Health Department |
Health Department N3995 Annex Road Jefferson, WI 53549 |
Phone: 920-674-7275
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Highway Department |
Highway Department 141 W Woolcock St Jefferson WI 53549 |
Phone: 920-674-7390
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County Parks |
Parks Department 320 S Main St, Rm 212 Jefferson, WI 53549 |
Phone: 920-674-7260
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Birth & Death Certificates, Marriage Records |
Register of Deeds 320 S Main St Jefferson, WI 53549-1799 |
Phone: 920-674-7235
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Cooperative Extension |
UW-Extension, Jefferson County 864 Collins Rd Jefferson, WI 53549 |
Phone: 920 674-7295
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Tourism, Relocation & Business Development |
Fort Atkinson Area Chamber of Commerce 244 N Main St Fort Atkinson, WI 53538-1829 |
Phone: 920-563-3210
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Jefferson Chamber of Commerce 122 W Garland Street Jefferson, WI 53549 |
Phone: 920-674-4511
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Johnson Creek Area Chamber of Commerce PO Box 527 Johnson Creek, WI 53038-0527 |
Phone: 920-699-4949
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Phone: 920-648-3585 E-mail
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Palmyra Area Chamber of Commerce PO Box 139 Palmyra, WI 53156-0139 |
Phone: 414-531-4357
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Waterloo Chamber of Commerce PO Box 1 117 E Madison Street Waterloo, WI 53594-0001 |
Phone: 920-478-2500
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Watertown Area Chamber of Commerce 519 E Main St Watertown, WI 53094-3873 |
Phone: 920-261-6320
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Historical and Genealogical Societies |
Bark River Woods Historical Society W4080 St Rd 106 Fort Atkinson, WI 53538-9681 |
Phone: 920-563-4773
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Concord Historical Society PO Box 561 Watertown, WI 53094 |
E-mail |
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Dodge/ Jefferson County Genealogical Society PO Box 91 Watertown, WI 53094 |
E-mail |
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Fort Atkinson Historical Society 407 Merchants Ave Fort Atkinson, WI 53538 |
Phone: 920-563-7769 E-mail |
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Heritage Military Music Foundation 504 S 4th St Watertown, WI 53094 |
Phone: 920-262-1864 E-mail |
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Jefferson Historical Society 317 South Main Street Jefferson, WI 53549 |
Phone: 920-674-7731
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Johnson Creek Historical Society PO Box 113 Johnson Creek, WI 53038 |
E-mail
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Lake Mills/Aztalan Historical Society PO Box 122 Lake Mills, WI 53551 |
Phone: 920-648-8575
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Palmyra Historical Society 226 W Main St Palmyra, WI 53156 |
Phone: 414-495-4245
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Waterloo Area Historical Society PO Box 52 Waterloo, WI 53594 |
Phone: 920-478-2328
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Watertown Historical Society 701 S Tenth St Watertown, WI 53094-4833 |
Phone: 920-261-0275
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WIGenWebProject, Jefferson County
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