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2025 Compare Cities People:
Columbia, MO vs Rock Island, IL

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Highlights
- Rock Island is 0% more densely populated than Columbia.
- People are 2.5% less likely to be married in Rock Island.
- The Median Age is 6.2 years older in Rock Island.
 Columbia, MORock Island, ILUnited States
 Population  Unlock37,519329,725,481
 Female Population51.2%  Unlock50.5%
 Male Population48.8%  Unlock49.5%
 Median Age  Unlock35.438.4
 space3
 Population - 2010109,430  Unlock309,327,143
 Population - 2000  Unlock39,684285,036,114
 Population - 199069,101  Unlock251,960,433
 Pop. 2000 to Now  Unlock-7.1%15.6%
 Pop. 1990 to Now80.6%  Unlock30.8%
 space4
 Population Density  Unlock2,226.093.4
 Land Area65.6  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
 space
 Est. Total Population By Age
 Columbia, MORock Island, ILUnited States
 Age 0 to 45.7%  Unlock5.9%
 Age 5 to 9  Unlock5.3%6.1%
 Age 10 to 144.6%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 2011.4%  Unlock4.0%
 Age 21 to 24  Unlock5.9%5.2%
 Age 25 to 3415.5%  Unlock13.8%
 Age 35 to 44  Unlock11.4%12.9%
 Age 45 to 549.3%  Unlock12.6%
 Age 55 to 59  Unlock5.7%6.7%
 Age 60 to 644.5%  Unlock6.3%
 Age 65 to 74  Unlock10.0%9.6%
 Age 75 to 843.1%  Unlock4.5%
 Age 85 and over  Unlock2.5%1.9%
 space1
 Race
 Columbia, MORock Island, ILUnited States
 White73.3%  Unlock59.4%
 Black  Unlock17.1%12.2%
 Asian5.9%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races5.0%  Unlock3.2%
 Hispanic  Unlock13.7%18.4%
 space2
 Marriage & Family
 Columbia, MORock Island, ILUnited States
 Married Population40.4%  Unlock49.8%
     Currently Married  Unlock37.6%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock60.6%50.2%
 Never Married47.8%  Unlock33.8%
 Divorced  Unlock12.6%10.8%
 Widowed3.1%  Unlock5.6%
 space5
 Household Size  Unlock2.262.60
 Households49,666  Unlock124,010,992
 Family Households  Unlock7,91880,755,759
     Married couple, w/children34.2%  Unlock30.5%
     Married couple, no children  Unlock39.9%42.9%
 Non Family Households24,540  Unlock43,255,233
     Single householder, w/children  Unlock21.8%15.8%
     Single householder, no children7.8%  Unlock10.8%
Voting
Reviews for Columbia    41 Reviews
Jamie · Columbia, MO
Great Place for Outdoor Activities
Over 1 years ago

If you are an active person and love to be outdoors and go to college sporting events, Columbia is a great place to live! I run and bike and go to Mizzou events a lot. I  More

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Jodi · Columbia, MO
No water park here
Over 4 years ago

I've live in CoMo for 20 yrs. NOT sure about this state of the art water park??!! There are great parks but nothing else for families. NO zoo, museum, and definitely no  More

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Nathan · Edinburg, IL
Not a good place to settle.
Over 5 years ago

I lived there for a year and hated every minute. Columbia reminded me of the San Francisco of the Midwest. It is overrun with homeless people. Law enforcement is  More

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Reviews for Rock Island    3 Reviews
Clint · Barry, IL
Rock Island - Pros/Cons
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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Gene · Taylor Ridge, IL
QCA Education and Business
Over 18 years ago

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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Martha · Rock Island, IL
Affordable Small City
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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Learn More About Columbia, Missouri
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