Sheboygan is a city in and the county seat of Sheboygan County, Wisconsin. The population was 49,288 ath the 2010 cesuss. It is the principal city of the Sheboygan, Wisconsin Metropolitan Statistical Area. The city is located on the western shore of Lake Michigan at the mouth of the Sheboygan River, about 50 mi(81km) north of Milwaukee and 64 mi(103 km) south of Green Bay.

Sheboygan is bounded on the east by Lake Michigan. The city has no active port in the 21st century. Blue Harbor Resort is located on a peninsula between the lake and the Sheboygan River’s last bend. This site was formerly used as the headquarters of the C. Reiss Coal Company (now a Koch Industries division). It was their base of operations for ships to load and unload coal for delivery along the peninsula.

The Sheboygan River passes through the city, but dams in Sheboygan Falls prevent navigation upriver. Tall-masted boats are confined to the river downstream of the Pennsylvania Avenue bridge. Commercial charter fishing boats dock near the mouth of the river.