Fond du Lac County, Wisconsin

Fond du Lac County, Wisconsin
Fond du Lac County City/County Government Center
Map of Wisconsin showing Fond du Lac County
Wisconsin's location in the contiguous United States
Coordinates: 43°46′N 88°29′W / 43.76°N 88.49°W / 43.76; -88.49
Incorporated1836
County seatFond du Lac
Largest cityFond du Lac
Municipalities
33 (total)
  • 3 cities
  • 21 towns
  • 9 villages
Government
 • TypeCounty
 • BodyBoard of Supervisors
 • ExecutiveSam Kaufman
 • County Board25 supervisors
Area
 • Total
1,980 km2 (766 sq mi)
 • Land1,900 km2 (720 sq mi)
 • Water120 km2 (46 sq mi)
 • Rank40th largest county in Wisconsin
Population
 (2020)
 • Total
104,154
 • Estimate 
(2024)
104,269
 • Rank16th largest county in Wisconsin
 • Density55.9/km2 (144.7/sq mi)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (Central)
ZIP Code
54971, 53931, 53919, 53946, 53963, 54964, 54932, 54974, 53065, 53006, 54979, 54937, 54935, 53048, 53010, 53040, 53011, 53019, 53057, 53079, 53049, 53061, 53014
Area codes920
Congressional districts6th
Interstates
U.S. Highways
State Routes
AirportsFond du Lac County Airport
WaterwaysFond du Lac River
Milwaukee River
Rock River
Sheboygan River
Lake Winnebago
Websitehttps://www.fdlco.wi.gov/

Fond du Lac County (/ˈfɒndəlæk/ ) is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 104,154. Its county seat is Fond du Lac. The county was created in the Wisconsin Territory in 1836 and later organized in 1844. Fond du Lac is French for "bottom of the lake", given so because of the county's location at the southern shore of Lake Winnebago. Fond du Lac County comprises the Fond du Lac, Wisconsin Metropolitan Statistical Area. The Holyland region is in northeastern Fond du Lac County.