Williams County Property Appraiser & Tax Assessor
Real property appraisal records, parcel search lookup, property tax rates, and assessment protest deadlines for Williams County, North Dakota.
Williams County Assessor's Office Information
Williams County Appraisal & Assessment Office, Williston, ND 38001
Get Driving Directions ↗Monday - Friday: 8:00 AM - 4:30 PM (Local Time)
Closed on state & federal holidays.
(701) 485-7455
Vanguard Appraisals / Sidwell GIS
Williams County Property Tax Calculator
Estimated using Williams County's effective tax rate of 0.99% (Assessment ratio: 50%)
Appealing Your Williams County Assessment
Second Tuesday in June before the County Board of Equalization.
Under North Dakota property tax law, property owners in Williams County have the legal right to challenge an assessed valuation that exceeds fair market value, is unequally appraised compared to neighboring properties, or contains clerical errors.
Contact the Williams County Assessor's Office to review your property record card, verify square footage, and present recent comparable sales (comps).
If informal review does not resolve the valuation, file a written notice of appeal with the County Board of Equalization before the statutory deadline.
Was Your Williams County Home Over-Assessed This Year?
Studies show up to 30% to 60% of US residential properties are overvalued by automated municipal algorithms. Protesting your assessment before the statutory deadline can lower your tax bill by an average of $1,100/year.
Williams County Homestead Exemptions & Tax Relief
Homeowners in Williams County who occupy their home as their permanent primary residence may qualify for property tax reductions under state and local homestead programs:
Primary Residence Credit provides up to $500 property tax credit for any homeowner's primary residence regardless of income.
Homestead Credit provides up to $9,000 reduction in taxable valuation for low-income seniors 65+. Disabled veterans with 50%+ disability receive proportional credits.
Need Deed, Lien, or Title Records for Williams County?
While the Property Appraiser values real estate for taxation, official legal property transfers, warranty deeds, mortgages, and marriage records in Williams County are maintained by the County Clerk & Recorder.
Frequently Asked Questions
Where is the Williams County Property Appraiser office located?
The official Williams County property appraisal and tax assessment office is located at Williams County Appraisal & Assessment Office, Williston, ND 38001. Operating hours are typically Monday - Friday: 8:00 AM - 4:30 PM (Local Time). You can reach the customer service staff by phone at (701) 485-7455.
What is the property tax rate in Williams County, ND?
The average effective property tax rate in Williams County is approximately 0.99%. For a home with the median county market value of $235.000, the estimated annual property tax is about $2326 per year.
How do I search for a property or parcel in Williams County?
You can look up property record cards, assessed valuations, ownership history, and parcel boundary maps online through the official Williams County parcel search portal: https://www.ndaco.org//assessor/parcel-search.
When is the deadline to appeal my property assessment in Williams County?
Property valuation protests and appeals in Williams County must be submitted by: Second Tuesday in June before the County Board of Equalization. Appeals are formally reviewed and heard by the County Board of Equalization.
How does the Homestead Exemption work in Williams County?
Primary Residence Credit provides up to $500 property tax credit for any homeowner's primary residence regardless of income. Additional exemptions are available for senior citizens (65+) and disabled military veterans (Homestead Credit provides up to $9,000 reduction in taxable valuation for low-income seniors 65+. Disabled veterans with 50%+ disability receive proportional credits.).
Adjacent & Neighboring County Appraisers
County Overview
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