Wabasha County, Minnesota: History
The recently organized Minnesota Territory legislature created Wabasha County on October 27, 1849, one of nine original counties in the territory. An area on the Mississippi River's west bank, originally called Cratte's Landing, had grown into a town named Wabasha, then a city, and when the legislature created the county west of the river around this city, Wabasha was designated the county seat. The city had been named for three successive chiefs of Mississippi bands of Dakota Indians.
Wabasha County's area was reduced in 1853 when sections were partitioned off to create Fillmore, Goodhue, and Rice counties. More area was partitioned off in 1854 to create Winona County, and another part in 1855 to create Olmsted County. The county boundaries have remained the same since 1855.