List of counties in South Dakota

The U.S. state of South Dakota is divided into 66 counties.

The official abbreviation of South Dakota is SD, the FIPS code is 46, the FIPS code of each county so always begins with 46, to which said in the table for each county three-digit number is appended.

The population figures given in the table are based on the results of the census in 2010.

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