Montana Census Records Online includes Federal and State censuses. Census records (especially when indexed) are one of the easiest ways to find family members and track individuals over their lifetime.

US Census Records

In the United States, federal censuses are taken every 10 years and these records are made public 72 after the census is taken. US Censuses began in 1790 and the most recent census available is the 1950 census. Most of the 1890 census was destroyed by fire, but parts remain and you can use other records as census substitutes.

HINT: You can look at federal (1870-1920) census records to see if your ancestor was naturalized and if they were, visit Montana Naturalization Records online.

HINT: Between 1790 and 1840, only the head of household is named in the census.

HINT: Between 1850 and present, all people living in a household are named in the census.

HINT: Between 1850 and 1880 there are census mortality schedules listing who died in the year before the census was taken.

TIP – Login with your free FamilySearch account to unlock some collections — see other tips for opening FS resources.

Montana Census Records online at the federal level

US – 1900 – United States Census, 1900, at FS, index & images

US – 1900-1940 – United States Enumeration District Maps for the Twelfth through the Sixteenth US Censuses, 1900-1940, at FS

US – 1900 United States Federal Census, at MH

US – 1908-1910 – United States, Native American, Eastern Cherokee Enrollment Records, 1908-1910, index links to images

US – 1910 – United States Census, 1910, at FS, index & images

US – 1910 United States Federal Census, at MH

US – 1920 – United States Census, 1920, at FS, index & images

US – 1920 United States Federal Census, at MH

US – 1930 – United States Census of Merchant Seamen, 1930, at FS, index

US – 1930 – United States Census, 1930, at FS, index & images

US – 1930 United States Federal Census, at MH

US – 1930 United States Census of Merchant Seamen, at MH

US – 1940 – United States Census, 1940, at FS, index & images

US – 1940 United States Federal Census, at MH

US – 1950 – United States Census, 1950, at FS, index & images

Montana Census Records online at the state level

Montana – Bitter Root Valley – 1860 – 1860 census; Bitter Root Valley and Ponderay Mountains area of Washington Territory, now in the state of Montana, at FS

Montana – 1870 – Montana, 1870 federal census, at FS

Montana – 1870-1900 – 1870-1900 Benton area census: 1890 Montana census schedules of Union veterans and widows of Civil War: 1862-1880 records of French/Canadian inhabitants of Choteua County, at FS

Montana – 1880 – Montana, 1880 federal census, at FS

Montana – Fort Belknap – 1885-1939 – Indian census rolls, Fort Belknap, 1885-1939, at FS

Montana – Fort Peck – 1885-1939 – Indian census rolls, Fort Peck, 1885-1939, at FS

Montana – Flathead – 1886-1939 – Indian census rolls, Flathead, 1886-1939, at FS

Montana – Blackfeet Agency – 1890-1939 – Indian census rolls, Blackfeet Agency, 1890-1939, at FS

Montana – Crow – 1891-1940 – Indian census rolls, Crow, 1891-1940, at FS

Montana – Great Sioux Reservation – 1892 – Indian census rolls, Great Sioux Reservation, 1892, at FS

Montana – 1900 – Montana, 1900 federal census, at FS

Montana – 1900 – Montana, 1900 federal census, at FS

Montana – Northern Cheyenne Agency- 1907-1950 – Heirship records, 1907-1950, at FS

Montana – 1909-1948 – Census records, 1909-1948, at FS

Montana – Fort Shaw School – 1910 – Indian census rolls, Fort Shaw School, 1910, at FS

Montana – 1910 – Montana, 1910 federal census, at FS

Montana – Rocky Boy – 1919-1939 – Indian census rolls, Rocky Boy, 1919-1939, at FS

Montana – 1920 – Montana, 1920 federal census, at FS

Montana – 1930 – Montana, 1930 federal census, at FS

Montana – 1940 – Montana, 1940 population census, at FS

Montana Census Records online at the county level

Big Horn County – Census – The 1870 Census Records of Big Horn County, Montana Territory, at FS

Big Horn County – Native Races – School Census Report, School District No. 2, Big Horn County, Montana, for the Year [1950], at FS

Big Horn County – Schools – School Census Report, School District No. 2, Big Horn County, Montana, for the Year [1950], Big Horn County (Montana). School District no. 2, at FS

Cascade County – Census – 1910 – Montana, Cascade County, 1910 Census Card Index, 1910, at FS

Cascade County – Census – Montana, Cascade County Records : COLLECTION RECORD, 1880-2009, at FS

Cascade County – Census – Montana, Cascade County, Municipal Census, at FS

Cascade County – Census – Montana, Cascade County, School Census Records, 1896-1955, at FS

Cascade County – Schools – Montana, Cascade County, School Census Records, 1896-1955, at FS

Chouteau County – Schools – Montana, Chouteau County, School Census Records, 1881-1940, at FS

Chouteau County – 1870-1900 – 1870-1900 Benton area census: 1890 Montana census schedules of Union veterans and widows of Civil War: 1862-1880 records of French/Canadian inhabitants of Choteua County, at FS

Dawson County – Census – 1880 – The 1880 Census Records of Dawson County, Montana, at FS

Fallon County – Schools – Census – Lewis and Clark County, Montana, School Census, 1882-1924, at FS

Fergus County – Schools – Census – Lewis and Clark County, Montana, School Census, 1882-1924, at FS

Flathead County – Schools – Census – Montana, Flathead County, School Census Reports, 1903-1969, at FS

Lake County – Schools – Montana, Lake County, School Census Records, 1910-1980, at FS

Lewis and Clark County – Schools – Census – Lewis and Clark County, Montana, School Census, at FS

Lewis and Clark County – Schools – Census – Lewis and Clark County, Montana, School Census, 1882-1924, at FS

Madison County – Census – 1870 – Montana, Madison County, Census Record, 1870, at FS

Mineral County – Census – Montana, Mineral County, Census Index, 1870-1930, at FS

Missoula County – Census – 1860 – 1860 Census; Bitter Root Valley and Ponderay Mountains Area of Washington Territory, Now in the State of Montana, at FS

Ravalli County – Census – 1860 – 1860 Census; Bitter Root Valley and Ponderay Mountains Area of Washington Territory, Now in the State of Montana, at FS

Ravalli County – Schools – Census – Lewis and Clark County, Montana, School Census, 1882-1924, at FS

Ravalli County – Schools – Census – Montana, Ravalli County, School Census Records, 1900-1940, at FS

Sheridan County – Schools – Montana, Sheridan County, School Census, 1922-1915, at FS

Silver Bow County – Schools – School Censuses and Indexes (Silver Bow County, Montana), 1901-1926, at FS

Montana Census Records online at the city level

Fort Benton – Census – 1870-1900 Benton Area Census : 1890 Montana Census Schedules of Union Veterans and Widows of Civil War : 1862-1880 Records of French/Canadian Inhabitants of Choteua County, at FS

Fort Benton – Schools – Census – Lewis and Clark County, Montana, School Census, 1882-1924, at FS

Great Falls – Census – 1896 – Official Census of the City of Great Falls, Montana, 1896-1913, at FS

Great Falls – Census – 1913 – Official Census of the City of Great Falls, Montana, 1896-1913, at FS

Great Falls – Census – Census of Hill 57, 1956, at FS

Virginia City – Schools – Montana, Madison County, Adobetown, Virginia City, School Census Records, 1874-1904, at FS