2025 Compare Cities People:
Idaho Falls, ID vs Three Forks, MT

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Highlights
- Three Forks is 0% more densely populated than Idaho Falls.
- People are 13.9% more likely to be married in Three Forks.
- The Median Age is 7.4 years older in Three Forks.
 Idaho Falls, IDThree Forks, MTUnited States
 Population  Unlock2,084329,725,481
 Female Population50.5%  Unlock50.5%
 Male Population49.6%  Unlock49.5%
 Median Age  Unlock4138.4
 space3
 Population - 201057,998  Unlock309,327,143
 Population - 2000  Unlock1,728285,036,114
 Population - 199043,929  Unlock251,960,433
 Pop. 2000 to Now  Unlock18.2%15.6%
 Pop. 1990 to Now46.0%  Unlock30.8%
 space4
 Population Density  Unlock1,429.493.4
 Land Area23.3  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Idaho Falls, IDThree Forks, MTUnited States
 Age 0 to 47.3%  Unlock5.9%
 Age 5 to 9  Unlock7.4%6.1%
 Age 10 to 148.1%  Unlock6.6%
 Age 15 to 17  Unlock3.1%3.9%
 Age 18 to 204.0%  Unlock4.0%
 Age 21 to 24  Unlock6.7%5.2%
 Age 25 to 3414.6%  Unlock13.8%
 Age 35 to 44  Unlock12.5%12.9%
 Age 45 to 5410.3%  Unlock12.6%
 Age 55 to 59  Unlock5.9%6.7%
 Age 60 to 645.3%  Unlock6.3%
 Age 65 to 74  Unlock12.1%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock2.7%1.9%
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 Race
 Idaho Falls, IDThree Forks, MTUnited States
 White77.0%  Unlock59.4%
 Black  Unlock0.0%12.2%
 Asian0.9%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races3.1%  Unlock3.2%
 Hispanic  Unlock2.5%18.4%
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 Marriage & Family
 Idaho Falls, IDThree Forks, MTUnited States
 Married Population52.0%  Unlock49.8%
     Currently Married  Unlock58.5%48.0%
 Married but Separated1.7%  Unlock1.8%
 Single Population  Unlock40.8%50.2%
 Never Married29.0%  Unlock33.8%
 Divorced  Unlock9.7%10.8%
 Widowed4.9%  Unlock5.6%
 space5
 Household Size  Unlock2.592.60
 Households23,875  Unlock124,010,992
 Family Households  Unlock47180,755,759
     Married couple, w/children35.3%  Unlock30.5%
     Married couple, no children  Unlock56.3%42.9%
 Non Family Households8,558  Unlock43,255,233
     Single householder, w/children  Unlock3.0%15.8%
     Single householder, no children6.7%  Unlock10.8%
Reviews for Idaho Falls    36 Reviews

Over 3 years ago

After escaping the liberalism in California I moved here with my family and loved the friendly folks, cleanliness, and beautiful views. Some things that I dislike is the  More

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I have lived here for about 17 years. I will admit that I have difficulty with the winter, the wind and the traffic. It seems that the traffic is constantly getting  More

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Anywhere in Idaho, Montana, Wyoming and Utah are now THEe BEST places to live. There is a reason people are flocking there...to live red, since blue has driven them out  More

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Reviews for Three Forks    3 Reviews

Over 6 years ago

I lived in the country outside of Three Forks for years and loved it. It is beautiful, fun, and close to everything. No jobs really, but Bozeman and even Butte or Helena  More

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I spent 12 long years in the Three Forks school system. Then spent 2 years taking remedial classes to get an  More

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I was born in Three Forks and lived there for a total of 25 years. Left forever in 1988 and never looked back. Two major employers, a talc mill and a cement plant.   More

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