List of counties in Minnesota
On October 27, 1849 nine counties were established. Among them were Benton, Dahkotah, Itasca, Ramsey, Mahkahta, Pembina, Wabasha, Washington, and Wahnata. Of these Benton, Dakota, Itasca, Ramsey, Wabasha, and Washington still exist as their original names. With the foundation of Kittson County on March 9, 1878, Pembina County no longer existed. When Minnesota was organized as a state, 57 of the present 87 counties were established. The last county to be created was Lake of the Woods County in 1923. 
The names of many of the counties pay tribute to the long history of exploration. Over ten counties names pay tribute to the state’s various Native American groups that are resident in parts of what is now Minnesota. Another fifteen counties are named after physical geographic features, with the remainder being named after politicians.
The FIPS county code is the five-digit Federal Information Processing Standard (FIPS) code which uniquely identifies counties and county equivalents in the United States. The three-digit number is unique to each individual county within a state, but to be unique within the entire United States, it must be prefixed by the state code. This means that, for example, while Aitkin County,Minnesota is 001, Adams County, Wisconsin and Adair County, Iowa are also 001. To uniquely identify Aitkin County, Minnesota, one must use the state code of 27 plus the county code of 001; therefore, the unique nationwide identifier for Aitkin County, Minnesota is 27001. The links in the column FIPS County Code are to the Census Bureau Info page for that county.