Port Washington is a city in and the county seat of Ozaukee County in the U.S. state of Wisconsin. It is about 25 miles north of Milwaukee and some 110 miles north of Chicago. In the 2000 census Port Washington had a population of 10,467 people.
The city is located within the Town of Port Washington, though it is politically independent.
With a natural harbor at the mouth of Sauk Creek, the city became a port on Lake Michigan, shipping and receiving various goods and materials. Of notable maritime commerce was the Port Washington power plant. The coal-fired plant received shipments of coal primarily by lake boat from its beginning of service in 1935 until 2004 when the coal-fired boilers were taken out of service.
The plant is now being converted to generate electricity from natural gas. The conclusion of the receipt of coal also signalled the conclusion of Port Washington as a commercial port. The harbor is now utilized almost exclusively by recreational boaters.
Port Washington has one of the largest charter fishing fleets on the Great Lakes. Shoe manufacturer Allen Edmonds as well as lawn and garden equipment producer Simplicity Manufacturing were founded in Port Washington. Though in recent years, the Simplicity Manufacturing Company has moved out, Allen Edmonds continues to call Port Washington home.