The St. Charles County Registrar is responsible for keeping track of tax rates levied by all of the county’s political subdivisions; serving as secretary to the Board of Equalization; maintaining the records of the County Council, as well as the historical and archived records of the county; issuing notary commissions and licenses for auctioneers, ferry boats, tow truck companies, and the sale of liquor within the county. In addition, the County Registrar assumes all non-election related duties assigned to the County Clerk per Missouri State Statutes.

Individuals and organizations interested in obtaining records pertaining to St. Charles County government may do so by submitting a request in writing to the County Registrar. Requests may be mailed, hand delivered, faxed, or emailed.