Lake County

County in northeastern Illinois, bordered to the east by Lake Michigan and to the north by Wisconsin; area 1,176 sq km/454 sq mi; population (1990) 516,400. Its capital is Waukegan. Most of the population is concentrated in the urban centres of the east and south, with dairy farming and market gardening occupying much of the rest of the county.

Lake County contains a mix of affluent Chicago suburbs (such as Highland Park and Lake Forest), industrial cities (such as North Chicago and Waukegan), and summer lake resorts (such as Channel Lake and Round Lake) in the northwest.

Lake County

County in the northwestern corner of Indiana, bordered to the north by Lake Michigan and to the west by Illinois; area 1,298 sq km/501 sq mi; population (1990) 475,600. Its capital is Crown Point. There are major steel production works in the extensively industrialized Calumet area in the north. The south is suburban and has some agriculture; soybeans, market garden crops, corn, and poultry are produced.

The county is crossed by the Grand Calumet and Little Calumet rivers in the north.

Lake County

Smallest county in Ohio, bounded to the north by Lake Erie; area 598 sq km/231 sq mi; population (1990) 215,500. Its capital is Painesville. Local agriculture includes fruit growing as well as market gardening and poultry farming. There is manufacturing at Painesville and other locations. Commercial fishing and salt production are pursued, and the region is known for its lake resorts.

A number of Cleveland's residential suburbs, such as Eastlake and Mentor, are situated in the west. The Chagrin and Grand rivers flow through the county.