Washington County, MO Assessor

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.

02/09/2026

Just a friendly reminder that if you haven't turned in your assessment form you still have time before March 1st. E-File is easy to do, we can complete your form over the phone for you, there's a drop box outside the office door in the hallway or you can come in and drop it in our basket. Please don't hesitate to call if you have questions. 573-438-4992.

01/20/2026

If you come to our office just to drop off your assessment form, we do have a drop box on the outside of the door in the hallway. It is located to the left of the door or you can take inside and set it in the basket on the counter. Thank you.

01/13/2026

There are changes coming to the Assessor's office Starting January 20, 2026.

If you want to view the online mapping there is now a subscription fee of $750/year plus a one time set-up fee of $25.00.

For anything we have to email/fax there will be a $2.00 fee plus $1.00 per page for b&w. If you are needing something mailed to you there will be a shipping fee that will be determined based off of the weight of the package.

Map fees are as follows: $5.00 - 8 1/2 x 11; $10.00 - 8 1/2 x 14; $20.00 - 11x17; $35.00 - 36x36.

Right now payment is check or cash. I am trying to get setup for accepting card payments.

I am sorry for all these fees but it's costing my office more money to run my office.

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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