As of 2002, Missouri had 114 counties, 946 municipalities, 312 townships, 536 public school districts, and 1,514 special districts. Elected county officials generally include commissioners, public administrator, prosecuting attorney, sheriff, collector of revenue, assessor, treasurer, and coroner. The city of St. Louis, which is administratively independent of any county, has an elected mayor, a comptroller, and a board of aldermen; the circuit attorney, city treasurer, sheriff, and collector of revenue, also elected, perform functions analogous to county officers. Most other cities are governed by an elected mayor and council. The state was the first in the union to grant home rule to cities.