St. Charles County, MO Business Licensing & Operations: Adult Entertainment (2026)

Section 405.5062 works on location rather than conduct. It does not regulate what happens inside a sexually oriented business. It decides where in unincorporated St. Charles County one can exist at all, and the answer is a short list.

The zoning filter comes first. A sexually oriented business may only be operated in "I1" Light Industrial and "I2" Heavy Industrial zoning districts as those districts are defined and described in the Unified Development Ordinance. Every commercial district in the county is off the table before any distance is measured, so a storefront in a retail center cannot qualify no matter how far it sits from a school.

The 500 foot buffer is then applied on top of that. The business shall not be operated within 500 feet of a church, synagogue, mosque, temple or building used for religious worship, a school, a residential zoning district boundary, a park, a family-oriented entertainment venue, a premises licensed to sell liquor, or another sexually oriented business. The residential entry measures to the zoning boundary rather than to a particular house, which means an I1 parcel that backs onto a residential district can fail the test even where no home stands near the line. Because the same 500 feet applies between two sexually oriented businesses, clustering is ruled out as well, and no more than one such business may operate in the same building.

The section also handles businesses that were already open. One operating on the effective date in violation of the spacing rule becomes a non-conforming use with a one year clock to relocate or close, unless it is voluntarily discontinued sooner. A voluntary discontinuance of 30 or more days ends the non-conforming status on its own, so a business that closes for a month during the phase-out period cannot reopen at that address and restart the year.