S.D. Codified Laws § 10-44-9.4
On or about July fifteenth of each year, the secretary of public safety shall send to each county auditor a list of certified county fire departments and a warrant in an amount equal to one-half of the amount appropriated pursuant to § 10-44-9.1, times the ratio of the assessed valuation of the county to the assessed valuation of the state, plus one-half of the amount appropriated pursuant to § 10-44-9.1, times the ratio of the population of the county to the population of the state. The secretary of public safety shall base the allocation on figures contained in the most recent published annual statistical report of the Department of Revenue and census or population estimates of the United States Department of Commerce Bureau of the Census. Warrants shall be drawn by the state auditor.
SDCL 10-44-9.4