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2026 Compare Cities People:
Alton, IL vs Brooklyn, IL

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Highlights
- Brooklyn is 0% more densely populated than Alton.
- People are 65.4% less likely to be married in Brooklyn.
- The Median Age is 8.4 years younger in Brooklyn.
 Alton, ILBrooklyn, ILUnited States
 Population  Unlock627329,725,481
 Female Population52.2%  Unlock50.5%
 Male Population47.8%  Unlock49.5%
 Median Age  Unlock29.738.4
 space3
 Population - 201027,901  Unlock309,327,143
 Population - 2000  Unlock676285,036,114
 Population - 199032,905  Unlock251,960,433
 Pop. 2000 to Now  Unlock1.6%15.6%
 Pop. 1990 to Now-20.8%  Unlock30.8%
 space4
 Population Density  Unlock754.593.4
 Land Area15.5  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Alton, ILBrooklyn, ILUnited States
 Age 0 to 45.5%  Unlock5.9%
 Age 5 to 9  Unlock14.4%6.1%
 Age 10 to 147.2%  Unlock6.6%
 Age 15 to 17  Unlock0.0%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock3.2%5.2%
 Age 25 to 3414.5%  Unlock13.8%
 Age 35 to 44  Unlock9.1%12.9%
 Age 45 to 5411.7%  Unlock12.6%
 Age 55 to 59  Unlock7.2%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock13.4%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Alton, ILBrooklyn, ILUnited States
 White67.1%  Unlock59.4%
 Black  Unlock91.5%12.2%
 Asian0.6%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races5.0%  Unlock3.2%
 Hispanic  Unlock4.8%18.4%
 space2
 Marriage & Family
 Alton, ILBrooklyn, ILUnited States
 Married Population36.6%  Unlock49.8%
     Currently Married  Unlock11.3%48.0%
 Married but Separated2.8%  Unlock1.8%
 Single Population  Unlock87.4%50.2%
 Never Married37.6%  Unlock33.8%
 Divorced  Unlock20.7%10.8%
 Widowed8.7%  Unlock5.6%
 space5
 Household Size  Unlock3.462.60
 Households11,097  Unlock124,010,992
 Family Households  Unlock10880,755,759
     Married couple, w/children23.2%  Unlock30.5%
     Married couple, no children  Unlock13.0%42.9%
 Non Family Households5,244  Unlock43,255,233
     Single householder, w/children  Unlock68.5%15.8%
     Single householder, no children13.3%  Unlock10.8%
Voting
Reviews for Alton    7 Reviews
Tim · Alton, IL
Headed in the right direction. Come join us!
Over 3 years ago

My wife, daughter, and I moved here from Phoenix Metro March 2022 and have been very happy with our move. The people have been great, having four seasons is great, and  More

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Jeanie · Alton, IL
I Love It
Over 3 years ago

Not sure why such low reviews. I moved here from St. Louis. Crime in Alton is NOTHING compared to that. Maybe 1 or 2 homicides a year and those are generally people  More

   |    Reply
Lindsie · Alton, IL
Alton, IL
Over 11 years ago

Unfortunately, Alton has become a run down, poverty stricken area. Jobs are very limited and do not pay well. Unless you plan on commuting to St. Louis for work, you  More

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Reviews for Brooklyn    1 Reviews
Roberta  · Houston, TX
Positive Changes and Growth for The Oldest Black I
Over 18 years ago

Brooklyn is waking up after a long long sleep! The Historical Society of Brooklyn llinois was founded July 23, 2007. The history of the town can be found on the website:  More

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Learn More About Alton, Illinois
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