S.D. Codified Laws § 10-33A-6.1

The secretary shall distribute to each county an amount equal to the money deposited in the county telecommunications gross receipts fund times the ratio of population of the county to the total population of all counties. The secretary shall base the allocation of money on the most recent decennial census of the United States Department of Commerce, Bureau of the Census. The secretary shall make distributions from the county telecommunications gross receipts fund each March, June, September, and December. The secretary shall approve vouchers and the state auditor shall draw warrants to pay each county its share of the distribution.