Montana is a large, landlocked state in the Mountain West of the U.S. characterized by diverse geography, including mountains in the west and prairies/badlands in the east. It borders Idaho, North Dakota, South Dakota, Wyoming, and three Canadian provinces. Despite being the fourth-largest state by area, it has a small population and low population density. Helena is the capital, while Billings is the most populous city.
In the 1890s, public opinion grew increasingly negative towards the Chinese in Montana, and nearly half of the state's Asian population left by 1900.
Since 1900, the average temperature in Montana has increased by almost 2.5 °F, a rate higher than the continental U.S. average.
In 1902, The Reclamation Act was passed, which allowed irrigation projects to be built in Montana's eastern river valleys.
In 1902, pioneering feminist author Mary MacLane achieved international fame with her memoir, "The Story of Mary MacLane", detailing three months of her life in Butte.
From 1907 to 1913, Charles Nelson Pray served in the U.S. House of Representatives.
In 1909, Congress passed the Enlarged Homestead Act, expanding free land from 160 to 320 acres per family.
In 1909, elections for judicial office in Montana became nonpartisan.
By 1910, homesteaders had filed claims on over five million acres in Montana.
Following the 1910 census and reapportionment, Montana received a second representative.
In 1911, the Montana Supreme Court struck down the nonpartisan law on technical grounds.
In 1912, the time to "prove up" on a homestead claim was reduced to three years.
From 1907 to 1913, Charles Nelson Pray served in the U.S. House of Representatives.
From 1913 to 1933, Thomas J. Walsh served as one of Montana's historically prominent senators.
In 1913, Montana received a second representative in the United States House of Representatives.
In 1914, Montana granted women the right to vote.
In 1916, Jeannette Rankin was the first woman to hold national office in the United States when she was elected to the U.S. House of Representatives.
In 1916, the Stock-Raising Homestead Act allowed homesteads of 640 acres in areas unsuitable for irrigation.
The Chippewa-Cree nation was established on the Rocky Boy's Indian Reservation in 1916 near Box Elder.
Following ramped-up mine production and the Speculator Mine disaster in June 1917, Industrial Workers of the World organizer Frank Little arrived in Butte to organize miners.
In June 1917, the U.S. Congress passed the Espionage Act of 1917.
On August 1, 1917, Industrial Workers of the World organizer Frank Little was lynched in Butte.
At the peak of 1917–1918, the Great Falls land office had 14,000 new homesteads each year.
In 1917, Jeannette Rankin voted against the United States' declaration of war.
The droughts of 1917 started a period of hardship for farmers in Montana.
In February 1918, the Montana legislature passed the Montana Sedition Act, criminalizing criticism of the U.S. government.
At the peak of 1917–1918, the Great Falls land office had 14,000 new homesteads each year.
In 1917-1918, About 40,000 Montanans, 10% of the state's population, volunteered or were drafted into the armed forces.
In 1918, emotions rose in the wake of the legislative action, and the influenza epidemic claimed the lives of more than 5,000 Montanans.
Beginning in 1919, Montana moved to district elections for its two House members.
In 1919, the legislature increased the number of justices to five.
Significant drops in homesteads occurred in 1919 following the drought.
The droughts of 1917-1921 proved devastating to farmers. Many people left Montana, and half the banks in the state went bankrupt.
By 1923, over 93 million acres were farmed in Montana.
From 1923 to 1947, Burton K. Wheeler served as one of Montana's historically prominent senators.
From 1913 to 1933, Thomas J. Walsh served as one of Montana's historically prominent senators.
The Indian Reorganization Act of 1934 enabled the creation of seven Indian reservations in Montana.
In 1935, a new law was enacted that barred political parties from endorsing or contributing to judicial candidates.
On July 5, 1937, Medicine Lake recorded a temperature of 117 °F or 47.2 °C.
In 1940, Jeannette Rankin was again elected to Congress.
On December 8, 1941, the U.S. entered World War II, and many Montanans enlisted in the military.
In 1941, Jeannette Rankin voted against the United States' declaration of war after the Japanese attack on Pearl Harbor.
In 1942, the U.S. Army established Camp Rimini near Helena for training sled dogs in winter weather.
From 1923 to 1947, Burton K. Wheeler served as one of Montana's historically prominent senators.
In 1947, Montana became host to U.S. Air Force Military Air Transport Service.
Beginning with the 1988 election, Montana elected a Republican governor for the first time since 1964 and sent a Republican to the U.S. Senate for the first time since 1948.
Since 1952, Montana has voted for the Republican nominee in all but two presidential elections.
In 1953 Strategic Air Command air and missile forces were based at Malmstrom Air Force Base.
On January 20, 1954, Montana recorded its coldest temperature on record, which is also the coldest temperature for the contiguous United States, at −70 °F near Rogers Pass.
In December 1959, Malmstrom AFB was selected as the home of the new Minuteman I intercontinental ballistic missile.
In 1959, Lee Enterprises bought several Montana newspapers, changing the media landscape previously dominated by copper company-owned newspapers.
From 1961 to 1969, James F. Battin served in the U.S. House of Representatives.
In early 1962, the first operational Minuteman I missiles were in place in Montana.
Beginning with the 1988 election, Montana elected a Republican governor for the first time since 1964 and sent a Republican to the U.S. Senate for the first time since 1948.
In 1964, the National Wilderness Preservation System was established by the Wilderness Act.
From 1953 to 1968, Malmstrom AFB hosted the 29th Fighter Interceptor Squadron, Air Defense Command.
From 1968 through 1988, the state was dominated by the Democratic Party.
From 1961 to 1969, James F. Battin served in the U.S. House of Representatives.
In 1971, Montana voters approved the call for a state constitutional convention.
On January 15, 1972, Loma experienced the most extreme recorded temperature change in a 24-hour period in the United States when a chinook wind caused the temperature to rise from −54 to 49 °F.
On June 20, 1972, Montana's new constitution was declared ratified after narrowly being approved by voters, with a vote of 116,415 to 113,883.
In 1972, Montana voters amended the 1889 constitution 37 times.
The 1972 Constitution requires that voters determine every 20 years whether to hold a new constitutional convention.
The 1972 constitution has been amended 31 times.
The 1972 constitution lengthened the term of office to eight years and established the minimum number of justices at five.
In 1973, the Montana Water Use Act was established.
In 1974, Montana Youth Courts were established by the Montana Youth Court Act.
In 1974, Montana introduced a state severance tax on coal that varied from 20 to 30%.
In 1974, a major amendment established a reclamation trust to restore mined land.
In 1975, The Montana Worker's Compensation Court was established by the Montana Workers' Compensation Act.
In 1976, a major amendment established a coal tax trust fund, funded by a tax on coal extraction.
In 1976, the stretch of the Missouri River between Fort Benton and the Fred Robinson Bridge was designated a National Wild and Scenic River.
From 1978 to 2014, Max Baucus served as Montana's longest-serving U.S. senator.
In 1978, Paul G. Hatfield served as an appointed U.S. Senator.
In 1978, a major amendment converted the mandatory decennial review of county government into a voluntary one.
In 1979, the Montana Water Court was established by the Montana Water Court Act.
In 1979, the legislature increased the number of justices by two.
Between 1980 and 1990, Montana's Native American population grew by 27.9%.
In 1981, the Supreme Court of the United States upheld Montana's 1974 state severance tax on coal in the case of Commonwealth Edison Co. v. Montana, 453 U.S. 609.
In 1985, the Montana Legislature passed a law allowing towns with fewer than 5,500 residents and unincorporated communities with fewer than 2,500 residents to levy a resort tax if more than half the community's income came from tourism.
Beginning with the 1988 election, Montana elected a Republican governor for the first time since 1964 and sent a Republican to the U.S. Senate for the first time since 1948.
In 1988, a major amendment converted the provision of public assistance from a mandatory civil right to a non-fundamental legislative prerogative.
1990 census data indicated that people from as many as 275 different tribes lived in Montana.
Between 1980 and 1990, Montana's Native American population grew by 27.9%.
In 1990, Montana voters turned down a new constitutional convention with 84 percent voting no.
In the reapportionment following the 1990 census, Montana lost one of its House seats.
Montana had only one representative in the U.S. House after having lost its second district in the 1990 census reapportionment.
In 1992, Montana last supported a Democrat for president, when Bill Clinton won a plurality victory.
In 1992, Robert Redford's film adaptation of Norman Maclean's novel, "A River Runs Through It," was released, bringing national attention to fly fishing in Montana.
In 1992, voters approved a constitutional amendment implementing term limits for certain statewide elected executive branch offices and members of the Montana Legislature.
In 1994, the Republican Party took control of both chambers of the state legislature.
Since 1996, Montana's congressional seats have been Republican.
The Indian Education for All Act was passed in 1999 to provide funding for the state constitutional mandate on Indian education.
According to the 2000 census, 94.8% of the population aged five and older speak English at home.
Between 2000 and 2010, Montana's Native American population grew by 18.5 percent.
In 2002, the independent film "The Slaughter Rule", dramatizing six-man football teams in Montana's Class C high schools, was released.
From 2004 to 2010, the two chambers of the state's legislature had split party control.
In 2004, a new constitutional right to hunt and fish was established.
The 2004 reapportionment produced more swing districts and a brief period of Democratic legislative majorities.
The state was sued in 2004 because of lack of funding for the Indian Education for All Act, leading to increased state support of the program.
From 2005 to 2013, Brian Morris served as an associate justice of the Montana Supreme Court.
In May 2006, Governor Brian Schweitzer posthumously issued full pardons for all those convicted of violating the Montana Sedition Act.
Between 1988 and 2006, the pattern flipped, with voters more likely to elect conservatives to federal offices.
During July 2007, many Montana cities set heat records, marking it as the hottest month ever recorded in Montana.
In August 2007, Senator Jon Tester asked that a submarine be christened USS Montana.
South Dakota passed similar legislation to the Indian Education for All Act in 2007, and Wisconsin was working to strengthen its own program based on this model.
In the 2008 presidential election, Montana was considered a swing state and was ultimately won by Republican John McCain by a narrow margin of two percent.
As of 2009, almost two-thirds of Native Americans in Montana live in urban areas.
In 2009, the U.S. Department of Education estimated that 5,274 students in Montana spoke a language other than English at home.
According to the 2010 U.S. Census, Billings, Missoula, Great Falls, Bozeman, Butte, Helena and Kalispell are the seven largest communities in Montana.
According to the 2010 census, Montana is 19th in native people, who are 6.5% of the state's population.
According to the 2010 census, many Montanans reported belonging to various Native American tribes.
As of 2010, Missoula was the 166th largest media market in the United States as ranked by Nielsen Media Research.
As of 2010, the largest Christian denominations in Montana were the Catholic Church, the Church of Jesus Christ of Latter-day Saints, Evangelical Lutheran Church in America, and non-denominational evangelical Protestants.
As of 2010, the largest European ancestry groups in Montana were: German (27.0%), Irish (14.8%), English (12.6%), Norwegian (10.9%), French (4.7%), and Italian (3.4%).
During the first decade of the new century, growth was mainly concentrated in Montana's seven largest counties, with the highest percentage growth in Gallatin County from 2010 to 2020.
In 2010, Max Baucus shepherded the Patient Protection and Affordable Care Act through the Senate.
In 2010, Montana voters again turned down a new constitutional convention with 58.6 percent voting no.
In 2010, Polson, Havre, Great Falls, Billings, and Anaconda had the greatest percentages of Native American residents.
In 2010, the mid-term elections decisively returned both branches to Republican control.
In 2010, there was a prohibition on new taxes on the sale or transfer of real property.
In 2010, there were about 700 Dakota speakers in Montana.
Montana's population grew at about the national average during the 2000s, but it had failed to regain its second seat in 2010.
The Census and Economic Information Center estimated that Montana had hit the one million population mark sometime between November and December 2011.
In 2011, Montana ranked third in the nation in the number of craft breweries per capita.
In 2011, there were about 13,040 Spanish-language speakers in Montana, representing 1.4% of the population.
On January 3, 2012, the CEIC estimated that Montana had reached the one million population mark sometime between November and December 2011.
In 2012, the U.S. Supreme Court struck down Montana's judicial nonpartisan election law in American Tradition Partnership, Inc. v. Bullock.
As of August 2013, there were 527 FCC-licensed FM radio stations and 114 AM stations broadcasting in Montana.
Based on 2013 census numbers, the "big seven" communities contain 35 percent of Montana's population, and the counties in which they are located are home to 62 percent of the state's population.
From 2005 to 2013, Brian Morris served as an associate justice of the Montana Supreme Court.
In 2013, AARP The Magazine named the Billings Clinic one of the safest hospitals in the United States.
In 2013, other languages spoken in Montana included Assiniboine, Blackfoot, Cheyenne, Plains Cree, Crow, German Hutterite, Gros Ventre, Kalispel-Pend d'Oreille, and Kutenai.
In the spring of 2013, Bozeman Yellowstone International Airport became the busiest airport in Montana, surpassing Billings Logan International Airport.
According to the 2014 Gallup Poll, Montana was ranked as the least obese state in the U.S., with an obesity rate of 19.6%.
From 1978 to 2014, Max Baucus served as Montana's longest-serving U.S. senator.
In 2014, 30% of Montana's population identified as irreligious.
In 2014, Steve Daines was first elected as one of Montana's U.S. senators.
In 2014, spending on state supreme court races exponentially increased to $1.6 million.
On September 3, 2015, Secretary of the Navy Ray Mabus announced that Virginia Class attack submarine SSN-794 would be named USS Montana.
In 2015, Montana had the second-highest percentage of U.S. military veterans, with roughly 12 percent of its population over 18 being veterans.
Since 2015, Montana's Senate seats have been held by Republicans Steve Daines.
The 1972 constitution has been amended 31 times as of 2015.
In 2016, extensive new constitutional rights for victims of crime were approved.
In 2016, spending on state supreme court races increased to more than $1.6 million.
In 2017, nonresidents in Montana generated $4.7 billion in economic output, with $1.3 billion attributed to visitor groups participating in guided fishing experiences.
In 2018, approximately 12.2 million non-residents visited Montana, while the population was estimated to be 1.06 million. This disproportionate ratio of visitors to residents makes Montana's resort tax crucial for maintaining roads, highways, and state parks.
In 2019, tourism was Montana's fastest-growing sector, with 12.6 million tourists visiting the state.
In December 2019, the Little Shell Tribe of Chippewa Indians of Great Falls was recognized by the federal government.
In April 2020, Montana's unemployment rate peaked at 12.0%.
According to the 2020 census, 88.9% of the population was White (87.8% non-Hispanic White), 6.7% American Indian and Alaska Native, 4.1% Hispanics and Latinos of any race, 0.9% Asian, 0.6% Black or African American, 0.1% Native Hawaiian and other Pacific Islander, and 2.8% from two or more races.
In 2020, 34% of Montana's population identified as irreligious.
In 2020, 67,612 people in Montana self-identified as Native American, while 100,578 did in combination with one or more other races.
In 2020, Greg Gianforte, a Republican, was elected as the governor of Montana.
In 2020, Steve Daines was reelected as one of Montana's U.S. senators.
In 2020, the largest Christian denominations in Montana were the Catholic Church, non-denominational Protestantism, and the Church of Jesus Christ of Latter-day Saints.
In a 2020 study, Montana was ranked as the 21st easiest state for citizens to vote in.
In the reapportionment following the 2020 census, Montana regained a House seat.
Montana regained its second district due to reapportionment following the 2020 census.
The 2020 census put Montana's population at 1,084,225. From 2010 to 2020 Gallatin County had a 32.9% increase in population. Kalispell saw a 40.1% increase and Billings saw an increase of 12,946 residents.
As of 2021, the Montana Senate is controlled by Republicans 31 to 19.
According to HUD's 2022 Annual Homeless Assessment Report, there were an estimated 1,585 homeless people in Montana.
In 2022, the Public Religion Research Institute's (PRRI) survey showed that Christianity grew to 62% of the population, with 43% Protestant, 17% Catholic, and 2% Restorationist through Mormonism.
In 2022, the U.S. Bureau of Economic Analysis estimated Montana's Gross Domestic Product was $67.072 billion, ranking 47th in the nation. The per capita personal income was $60,984, ranking 28th in the nation.
In March 2023, Montana's unemployment rate reached its lowest at 2.5%.
In May 2023, Montana became the first US state to ban the social media app TikTok and online marketplace Temu.
On July 1, 2023, the United States Census Bureau estimated the population of Montana to be 1,132,812, a 4.5% increase since the 2020 census.
Starting in 2023, Montana increased the state's number of representatives in the House to two after a thirty-year break.
Until 2023, Montana had one at-large congressional district.
As of November 2024, Montana's unemployment rate is 3.2%.
In 2024, Intermountain Health's St. Vincent Regional Hospital in Billings received verification as a Trauma I hospital.
In 2024, Tim Sheehy was elected as one of Montana's U.S. senators.
In 2024, a constitutional provision codifying abortion rights took place.
Since 2025, Montana's Senate seats have been held by Republicans Tim Sheehy.