Onalaska is a city in Polk County, Texas, United States. Situated on a peninsula between the main channel and one arm of Lake Livingston…Onalaska is a city in Polk County, Texas, United States. Situated on a peninsula between the main channel and one arm of Lake Livingston, the population was 3,020 at the 2020 census. First settled in the 1840s, Onalaska became a prominent company town in the early 20th century as the site of the Carlisle Lumber Company’s East Texas operations. After the sawmill closed in 1925, the town declined until the construction of Lake Livingston in the late 1960s spurred new growth through tourism, retirement development, and real estate. Today, Onalaska is known for its recreational access to Lake Livingston and its historic roots as a planned industrial settlement.
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