The United States acquired the area of Montana from France as part of the Louisiana Purchase in 1803 and by a treaty with Great Britain in 1846. Montana Territory was organized from the northeastern part of Idaho Territory on May 26, 1864, with generally the same boundary as the present state.
Census data for Montana are available beginning with the 1870 census. The 1860 census population in present-day Montana was included in unorganized Dakota, although legally the area was within Nebraska and Washington territories. The portion of Yellowstone National Park in Montana was probably enumerated as part of Wyoming from 1880 to 1910.
Data for the legally established state of Montana are available beginning with the 1890 census.
See: Geographic Terms & Concepts
Counties & County Equivalents
There are 56 counties in Montana. Two counties are not considered to be functioning governmental units because each has consolidated its functions with an incorporated place. Deer Lodge County and Anaconda-Deer Lodge County (place) are governmentally consolidated. Silver Bow County and Butte-Silver Bow (place) are governmentally consolidated. The remaining 54 counties are each governed by a county board of commissioners.
Yellowstone National Park was deleted as a county equivalent when its area legally became part of Gallatin and Park Counties on November 7, 1997.
There are 194 county subdivisions in Montana. They are all census county divisions (CCDs), which are delineated for statistical purposes, have no legal function, and are not governmental units..
NOTE: There is a link to the County Subdivisions at the top of each County Data page.
Places (Incorporated Cities, Towns & Census Designated Places (CDPs))
Montana has 364 places; 129 incorporated places and 235 census designated places (CDPs). The incorporated places consist of 52 cities, 75 towns, 1 city with no description - Anconda-Deer Lodge County - and 1 balance of county for the area of the Butte-Silver Bow consolidated city outside of the incorporated place of Walkerville city. Anaconda-Deer Lodge County is coextensive with Deer Lodge County.
Alphabetical List of Cities, Towns, CDPs and Other Populated Places
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q, R | S | T | U, V | W, X, Y, Z
Montana Civil Features
Montana Civil Features: Political Subdivisions, Native Areas, Land Grants, etc. - sorted by Census Class Codes.
Metropolitan and Micropolitan Stastical Areas
There are 3 Metropolitan and 4 Micropolitan Statistical Areas in Montana. MT Metopolitan & Micropolitan Areas
Montana ZIP Code Tabulation Areas
Montana has 363 ZIP Code tabulation areas (ZCTAs). View Montana ZIP Codes and ZIP Code Maps.
Montana has 267 elementary school districts, 108 secondary school districts, and 52 unified school districts. View Montana Public and Private Schools.
Montana has 1 congressional district. An interactive map shows the contact information for each Representative as well as the boundaries for each Montana district. View Map of Montana Congressional Districts.
State Legislative Districts
There are 50 state senate districts and 100 state house districts in Montana.
American Indian Areas
Montana has eight federally recognized American Indian areas. There are seven reservations, six with off-reservation trust lands. There is also one off-reservation trust land associated with an American Indian reservation in a neighboring state.