Boundary Commission

The Boundary Commission offices are moving! Our new address is: 401 N. Lindbergh Blvd., Suite 308, Saint Louis, MO 63141. Phone number and email remains the same.

Annexation proposals can be submitted from April 15, 2025 – July 1, 2028 by those municipalities who have a 2024 map plan on file.

View information regarding the consolidation process for municipalities in St. Louis County.

User Accounts available!

Users can register for an account. This allows users to be notified when updates are made to meetings, proposals, and/or map plans to which they’re subscribed.

More details on the benefits of having a User Account can be found by clicking the link.

Interested in serving on the Boundary Commission? There are currently three Joint Appointment vacancies. To apply for a St. Louis County seat when there’s an opening, visit here to fill out their application. If interested in the Joint Appointment seats, send us an email