2025 Compare Cities People:
Rock Island, IL vs Great Falls, MT

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Highlights
- Great Falls is 0% more densely populated than Rock Island.
- People are 19.0% more likely to be married in Great Falls.
- The Median Age is 3.6 years older in Great Falls.
 Rock Island, ILGreat Falls, MTUnited States
 Population  Unlock60,381329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock3938.4
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 Population - 201038,973  Unlock309,327,143
 Population - 2000  Unlock56,690285,036,114
 Population - 199040,552  Unlock251,960,433
 Pop. 2000 to Now  Unlock2.9%15.6%
 Pop. 1990 to Now-9.1%  Unlock30.8%
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 Population Density  Unlock2,630.393.4
 Land Area16.9  Unlock3,531,905.4
 Water Area  Unlock0.5264,836.8
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 Est. Total Population By Age
 Rock Island, ILGreat Falls, MTUnited States
 Age 0 to 46.2%  Unlock5.9%
 Age 5 to 9  Unlock6.1%6.1%
 Age 10 to 146.9%  Unlock6.6%
 Age 15 to 17  Unlock3.6%3.9%
 Age 18 to 208.5%  Unlock4.0%
 Age 21 to 24  Unlock5.2%5.2%
 Age 25 to 3412.8%  Unlock13.8%
 Age 35 to 44  Unlock11.7%12.9%
 Age 45 to 549.9%  Unlock12.6%
 Age 55 to 59  Unlock6.4%6.7%
 Age 60 to 646.3%  Unlock6.3%
 Age 65 to 74  Unlock10.7%9.6%
 Age 75 to 844.5%  Unlock4.5%
 Age 85 and over  Unlock2.9%1.9%
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 Race
 Rock Island, ILGreat Falls, MTUnited States
 White61.1%  Unlock59.4%
 Black  Unlock1.1%12.2%
 Asian4.5%  Unlock5.6%
 Native American  Unlock4.4%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races3.2%  Unlock3.2%
 Hispanic  Unlock5.3%18.4%
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 Marriage & Family
 Rock Island, ILGreat Falls, MTUnited States
 Married Population39.4%  Unlock49.8%
     Currently Married  Unlock45.4%48.0%
 Married but Separated1.8%  Unlock1.8%
 Single Population  Unlock53.0%50.2%
 Never Married41.2%  Unlock33.8%
 Divorced  Unlock14.9%10.8%
 Widowed6.7%  Unlock5.6%
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 Household Size  Unlock2.302.60
 Households15,285  Unlock124,010,992
 Family Households  Unlock14,68180,755,759
     Married couple, w/children27.4%  Unlock30.5%
     Married couple, no children  Unlock48.7%42.9%
 Non Family Households7,367  Unlock43,255,233
     Single householder, w/children  Unlock19.3%15.8%
     Single householder, no children10.8%  Unlock10.8%
Reviews for Rock Island    3 Reviews

Over 17 years ago

Pros: 1. Extremely low cost of living 2. Affordable place to live Cons: 1. High crime rate 2. Poor school system 3. Not much to  More

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Rock Island has a varied background and contains many cultural and historic areas. It has been improving its school system and is in a metropolitan area which contains  More

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Over 19 years ago

I just moved here for work one year ago. Moving from San Francisco here was a shock but ultimatelly good. The community is a typical midwestern small town. It is part  More

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Reviews for Great Falls    22 Reviews

Over 3 years ago

I grew up here. The lack of educational opportunities and adequate work opportunities made it extremely difficult to thrive. Upon leaving to the nearest metropolitan  More

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Please do not move to Great Falls if you are a liberal. Don't make a great red place go blue and ruin one of the last best unspoiled country places not yet destroyed by  More

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Over 4 years ago

I lived in Great Falls from 2012-2015 and could not leave fast enough! We lived near the downtown area (which you think would be nice with a $1200/month rent...) where  More

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