Release Date

JEFFERSON CITY, MO, FEB. 26, 2024 – The Missouri Department of Natural Resources has released the 2024 Annual Census of Missouri Public Water Systems. The annual census provides detailed information regarding the volume, source water type, population, chemical characteristics and other information about Missouri’s 2,785 public water systems.

The census includes test results for selected chemicals along with the types of treatments that Missouri water systems use. This information can be useful to citizens, water systems, public officials, consulting engineers and regional planners who want to learn more about their public water system.

The department prepares the census annually as required by Section 640.120 of the Revised Statutes of Missouri. The 2024 Census of Missouri Public Water Systems is available online at

Other information on Missouri’s public water systems includes:

For more information, contact the department in writing at Missouri Department of Natural Resources’ Public Drinking Water Branch, P.O. Box 176, Jefferson City, MO 65102-0176 or by phone at 800-361-4827 or 573-751-5331.

Contact Information