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2025 Compare Cities People:
Rock Island, IL vs Mahwah, NJ

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Highlights
- Mahwah is 0% more densely populated than Rock Island.
- People are 30.8% more likely to be married in Mahwah.
- The Median Age is 8.6 years older in Mahwah.
 Rock Island, ILMahwah, NJUnited States
 Population  Unlock25,530329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock4438.4
 space3
 Population - 201038,973  Unlock309,327,143
 Population - 2000  Unlock24,062285,036,114
 Population - 199040,552  Unlock251,960,433
 Pop. 2000 to Now  Unlock8.4%15.6%
 Pop. 1990 to Now-9.1%  Unlock30.8%
 space4
 Population Density  Unlock993.693.4
 Land Area16.9  Unlock3,531,905.4
 Water Area  Unlock0.5264,836.8
 space
 Est. Total Population By Age
 Rock Island, ILMahwah, NJUnited States
 Age 0 to 46.2%  Unlock5.9%
 Age 5 to 9  Unlock4.8%6.1%
 Age 10 to 146.9%  Unlock6.6%
 Age 15 to 17  Unlock4.7%3.9%
 Age 18 to 208.5%  Unlock4.0%
 Age 21 to 24  Unlock6.8%5.2%
 Age 25 to 3412.8%  Unlock13.8%
 Age 35 to 44  Unlock11.1%12.9%
 Age 45 to 549.9%  Unlock12.6%
 Age 55 to 59  Unlock6.8%6.7%
 Age 60 to 646.3%  Unlock6.3%
 Age 65 to 74  Unlock12.0%9.6%
 Age 75 to 844.5%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Rock Island, ILMahwah, NJUnited States
 White61.1%  Unlock59.4%
 Black  Unlock2.1%12.2%
 Asian4.5%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races3.2%  Unlock3.2%
 Hispanic  Unlock12.6%18.4%
 space2
 Marriage & Family
 Rock Island, ILMahwah, NJUnited States
 Married Population39.4%  Unlock49.8%
     Currently Married  Unlock50.5%48.0%
 Married but Separated1.8%  Unlock1.8%
 Single Population  Unlock48.4%50.2%
 Never Married41.2%  Unlock33.8%
 Divorced  Unlock7.0%10.8%
 Widowed6.7%  Unlock5.6%
 space5
 Household Size  Unlock2.462.60
 Households15,285  Unlock124,010,992
 Family Households  Unlock6,15480,755,759
     Married couple, w/children27.4%  Unlock30.5%
     Married couple, no children  Unlock52.7%42.9%
 Non Family Households7,367  Unlock43,255,233
     Single householder, w/children  Unlock8.0%15.8%
     Single householder, no children10.8%  Unlock10.8%
Voting
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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Reviews for Mahwah    1 Reviews
Jack · Mahwah, NJ
Mahwah NJ
Over 15 years ago

Great place to live and raise kids. Very family oriented and safe. Schools are great. Close proximity to everything. Only drawback is cost of housing and  More

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Learn More About Rock Island, Illinois
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