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Jefferson County, Wisconsin

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 •  County Government  •  Tourism - Business  •  Historical Societies  •  Public Libraries

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.

Land Area 557.01 sq miles
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  
1930:
1970:
1980:
1990:
2000:
36,785
60,060
66,152
67,783
74,021
 
Border Counties  
North:
East:
South:
West:
Dodge County
Waukesha County
Rock County, Walworth County
Dane County

Jefferson County Government and Local Information Resources
County Web Site www.co.jefferson.wi.us
Board of Supervisors Board of Supervisors
County Clerk Office of the County Clerk
320 S Main St
Jefferson, WI 53549-1799
Phone: 920-674-7140
Clerk of Courts Clerk of Circuit Courts
320 S Main St
Jefferson, WI 53549-1799
Phone: 920-674-7150
County Sheriff Sheriff
411 S Center Ave
Jefferson, WI 53549
Phone: 920-674-7310
Health Department Health Department
N3995 Annex Road
Jefferson, WI 53549
Phone: 920-674-7275
Highway Department Highway Department
141 W Woolcock St
Jefferson WI 53549
Phone: 920-674-7390
County Parks Parks Department
320 S Main St, Rm 212
Jefferson, WI 53549
Phone: 920-674-7260
Birth & Death Certificates, Marriage Records Register of Deeds
320 S Main St
Jefferson, WI 53549-1799
Phone: 920-674-7235
Cooperative Extension UW-Extension, Jefferson County
864 Collins Rd
Jefferson, WI 53549
Phone: 920 674-7295

Tourism, Relocation & Business Development Fort Atkinson Area Chamber of Commerce
244 N Main St
Fort Atkinson, WI 53538-1829
Phone: 920-563-3210
  Jefferson Chamber of Commerce
122 W Garland Street
Jefferson, WI 53549
Phone: 920-674-4511
  Johnson Creek Area Chamber of Commerce
PO Box 527
Johnson Creek, WI 53038-0527
Phone: 920-699-4949
 
Lake Mills Area Chamber of Commerce
200C Water St
Lake Mills, WI 53551-1632
Phone: 920-648-3585
E-mail
  Palmyra Area Chamber of Commerce
PO Box 139
Palmyra, WI 53156-0139
Phone: 414-531-4357
  Waterloo Chamber of Commerce
PO Box 1
117 E Madison Street
Waterloo, WI 53594-0001
Phone: 920-478-2500
  Watertown Area Chamber of Commerce
519 E Main St
Watertown, WI 53094-3873
Phone: 920-261-6320

Historical and Genealogical Societies Bark River Woods Historical Society
W4080 St Rd 106
Fort Atkinson, WI 53538-9681
Phone: 920-563-4773
  Concord Historical Society
PO Box 561
Watertown, WI 53094
E-mail
  Dodge/ Jefferson County Genealogical Society
PO Box 91
Watertown, WI 53094
E-mail
  Fort Atkinson Historical Society
407 Merchants Ave
Fort Atkinson, WI 53538
Phone: 920-563-7769
E-mail
  Heritage Military Music Foundation
504 S 4th St
Watertown, WI 53094
Phone: 920-262-1864
E-mail
  Jefferson Historical Society
317 South Main Street
Jefferson, WI 53549
Phone: 920-674-7731
  Johnson Creek Historical Society
PO Box 113
Johnson Creek, WI 53038
E-mail
  Lake Mills/Aztalan Historical Society
PO Box 122
Lake Mills, WI 53551
Phone: 920-648-8575
  Palmyra Historical Society
226 W Main St
Palmyra, WI 53156
Phone: 414-495-4245
  Waterloo Area Historical Society
PO Box 52
Waterloo, WI 53594
Phone: 920-478-2328
  Watertown Historical Society
701 S Tenth St
Watertown, WI 53094-4833
Phone: 920-261-0275
  WIGenWebProject, Jefferson County

Jefferson County - Mid-Wisconsin Federated Library System www.mwfls.org
Dwight Foster Public Library
102 E Milwaukee Avenue
Fort Atkinson 53538
920-563-7790

Irvin L. Young Memorial Library
431 West Center Street
Whitewater 53190
262-473-0530
Jefferson Public Libaray
321 S Main Street
Jefferson 53549
920-674-7733

Johnson Creek Public Library
125 Lincoln Street
Johnson Creek 53038
920-699-3741
Karl Junginger Memorial Library
625 N Monroe St
Waterloo 53594
920-478-3344

L. D. Fargo Public Libaray
120 E Madison Street
Lake Mills 53551
920-648-2166
Powers Memorial Library
115 Main Street
P.O. Box O
Palmyra 53156
262-495-4605

Watertown Public Library
100 South Water Street
Watertown 53094
920-262-4090
Notes

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