Washington County, MO Assessor

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Washington County, MO Assessor Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Washington County, MO Assessor, Government Official, 102 N. Missouri Street, Potosi, MO.

06/09/2026

**PSA**
The week of June 15th I will be on vacation. There has some things that have come up with my employees (Doctors appointments & Jury Duty) while I'm going to be out. Tuesday, June 16th, there is a possibility that the Personal Property Dept might be closed for the morning hours or could become all day if one of my employees gets picked for Jury Duty, the other employee in that dept will be out recovering from a procedure. Thursday, June 18th the Real Estate Dept will be closed temporarily in the morning hours but will reopen in the afternoon. I am sorry for the inconvenience.

04/28/2026

You have until Thursday, April 30th to return your assessment form. Starting May 1st penalties will apply.

04/27/2026

Due to severe weather conditions approaching our area, we will be closing at 2pm today to ensure the safety of our staff and customers.
Thank you for your understanding and please stay safe!

04/24/2026

The Assessor's Office will be closing at 2:30pm today. We will reopen on Monday at 8am.

04/08/2026

You have until April 30th to file your assessment forms! Starting May 1st, penalties will apply.

04/02/2026

The Assessor's office will be closing at noon, Friday, April 3, 2026 for Good Friday.

03/16/2026

The Assessor's office will be closing early Friday, 3/20/2026.
We will be open from 8:00 am to 12:30 pm.
Sorry for any inconvenience.

Address

102 N. Missouri Street
Potosi, MO
63664

Opening Hours

Monday 8am - 4:30am
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

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