Columbia County
Town of Lodi, Columbia County; Photographer: Dan Kempel
County Seat:
Portage
Address:
400 DeWitt St.
City:
Portage
Zip:
53901
Phone:
608-742-2191
Land Area:
773.9 sq. miles
Water Area:
33 sq. miles
Elevation:
800 ft. at Portage; 1,247 ft. at Gibraltar Rock; 1,404 ft. at Owen Memorial Park
Number of Lakes:
56
Area in Lakes:
3,095 acres (4.84 sq. miles)
Rivers:
Wisconsin, Fox, Crawfish
Major Watershed:
Wisconsin River (Northwest); Rock River (Southeast); Fox River (North)
Geographical Province:
North and West: Central Plain; South and East: Eastern Ridges and Lowlands
Vegetation:
Mostly oak savanna, with small areas of sedge meadow. South-central: Prairie bluestem and composites.
Population:
1930: 30,503
1970: 40,150
1980: 43,222
1990: 45,088
2000: 52,468
2010: 56,833
2020: 58,490
WCA District:
Southern
