Parcel Chartplaces Open the free map

County · code 30103

Treasure CountyMontana

Treasure County is a county in Montana with its seat in Hysham, formed in 1919.

  • Founded1919
  • County seatHysham
  • Land area978 sq mi + 6.6 sq mi water
  • Population762 2020 Census
  • Parcels mapped2,168 checked 14 October 2026
Open the free map Click any parcel in Treasure County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

RosebudBig HornYellowstone Hysham Census outline · seat marked

Where it is

Treasure on the map of Montana

Montana has 56 counties and county equivalents, each with its own records office. Shapes with a page are links.

Beaverhead CountyBig Horn CountyBlaine CountyBroadwater CountyCarbon CountyCarter CountyCascade CountyChouteau CountyCuster CountyDaniels CountyDawson CountyDeer Lodge CountyFallon CountyFergus CountyFlathead CountyGallatin CountyGarfield CountyGlacier CountyGolden Valley CountyGranite CountyHill CountyJefferson CountyJudith Basin CountyLake CountyLewis and Clark CountyLiberty CountyLincoln CountyMcCone CountyMadison CountyMeagher CountyMineral CountyMissoula CountyMusselshell CountyPark CountyPetroleum CountyPhillips CountyPondera CountyPowder River CountyPowell CountyPrairie CountyRavalli CountyRichland CountyRoosevelt CountyRosebud CountySanders CountySheridan CountySilver Bow CountyStillwater CountySweet Grass CountyTeton CountyToole CountyValley CountyWheatland CountyWibaux CountyYellowstone CountyTreasure County Treasure
Counties of Montana · Treasure highlighted

History

Formed in 1919 from Rosebud County

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

Treasure County was created from Rosebud County on April 1, 1919, when an act passed on February 7, 1919 took effect.

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

  1. 1919
    Treasure County created Treasure created from Rosebud. Act passed 7 February 1919; took effect 1 April 1919. Mistake in description corrected in 1921 Montana Revised Code.
    from Rosebud
    · Mont. Laws 1919, 16th leg., ch. 5/pp. 8-15
  2. 1921
    Boundary clarified Treasure boundaries redefined to correct mistake of 1 April 1919 (no change).
    no change
    · Mont. Rev. Code 1921, sec. 4354/pp. 1617-1619

Land and parcels

What the maps cover in Treasure

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

Treasure by the Census

Population
762 2020 Census count
Housing units
448 2020 Census count
Land area
978 square miles
Water area
6.6 square miles
People per sq mi
<1 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

Treasure 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

Open Treasure County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Open the free map no sign-in Pro early access

Questions

Common questions about Treasure County

When was Treasure County founded?
Treasure County was founded in 1919, formed from Rosebud County.
What is the county seat of Treasure County?
The county seat of Treasure County is Hysham.
Is there an online parcel map for Treasure County?
Yes. A public source publishes a parcel map of 2,168 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Treasure County's boundary or name changed?
Treasure County was created in 1919 from Rosebud County. Its boundary has been clarified one time since, with no change on the ground.
Is my lot in a flood zone?
We do not have flood maps for Treasure 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