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County · code 38105

Williams CountyNorth Dakota

Williams County is a county in North Dakota, formed in 1891 with its county seat at Williston.

  • Founded1891
  • County seatWilliston
  • Land area2,078 sq mi + 70 sq mi water
  • Population40,950 2020 Census
  • Parcels mapped34,083 checked 16 October 2026
Open the free map Click any parcel in Williams County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

DivideMcKenzieBurkeMountrailRichland, MTRoosevelt, MT Williston Census outline · seat marked

Where it is

Williams on the map of North Dakota

North Dakota has 53 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyBarnes CountyBenson CountyBillings CountyBottineau CountyBowman CountyBurke CountyBurleigh CountyCass CountyCavalier CountyDickey CountyDivide CountyDunn CountyEddy CountyEmmons CountyFoster CountyGolden Valley CountyGrand Forks CountyGrant CountyGriggs CountyHettinger CountyKidder CountyLaMoure CountyLogan CountyMcHenry CountyMcIntosh CountyMcKenzie CountyMcLean CountyMercer CountyMorton CountyMountrail CountyNelson CountyOliver CountyPembina CountyPierce CountyRamsey CountyRansom CountyRenville CountyRichland CountyRolette CountySargent CountySheridan CountySioux CountySlope CountyStark CountySteele CountyStutsman CountyTowner CountyTraill CountyWalsh CountyWard CountyWells CountyWilliams County Williams
Counties of North Dakota · Williams highlighted

History

Formed in 1891 from Buford County and Flannery County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Williams County was created on March 2, 1891, from all of Buford and Flannery counties, both of which were eliminated. It was fully organized on December 8, 1891. In 1910, Williams County lost territory to the creation of Divide County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1891
    Williams County created Williams created from all of Buford and all of Flannery; Buford and Flannery eliminated. Williams not fully organized, not attached. Williams (original, extinct) continued to exist until 8 November 1892 in another part of the state.
    from Bufordfrom Flannery
    · N. Dak. Laws 1891, 2d sess., ch. 50, secs. 6, 11/pp. 131-132; HRS N. Dak., Williams, 3-5; Hall, 226-229
  2. 1891
    Changed Williams fully organized. · HRS N. Dak., Williams, 4-5; Williams County Historical Society, 1:92
  3. 1903
    Changed Allred (extinct) attached to Williams "for judicial purposes."
    Allred
    · N. Dak. Laws 1903, 8th sess., ch. 71/p. 81
  4. 1905
    Eliminated Allred eliminated, ending its attachment to Williams.
    into Allred
    · N. Dak. Laws 1905, 9th sess., ch. 73/p. 155; Hall, 236
  5. 1910
    Lost territory Williams lost to creation of Divide.
    to Divide
    · Hall, 246; HRS N. Dak., Williams, 4; Williams County Historical Society, 1:93

Land and parcels

What the maps cover in Williams

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Williams by the Census

Population
40,950 2020 Census count
Housing units
20,227 2020 Census count
Land area
2,078 square miles
Water area
70 square miles
People per sq mi
20 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Williams County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

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Questions

Common questions about Williams County

When was Williams County founded?
Williams County was founded in 1891, formed from Buford County and Flannery County.
What is the county seat of Williams County?
The county seat of Williams County is Williston.
Is there an online parcel map for Williams County?
Yes. A public source publishes a parcel map of 34,083 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Williams County's boundary or name changed?
Williams County was created in 1891 from Buford County and Flannery County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Allred County and Divide County.
Is my lot in a flood zone?
We do not have flood maps for Williams County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door