Welcome to washingtoncountymo.us, your online connection to Washington County government. Here you will be able to find information on County Government departments and services as well as elected officials.

This website is just a part of our commitment to providing and maintaining open and transparent County government. Please check back periodically as we will have ongoing improvements.


102 North Missouri Street

Potosi, MO 63664

(573) 438-6111


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