2025 Compare Cities People:
Alton, IL vs Crystal Lake, IL

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Highlights
- Crystal Lake is 0% more densely populated than Alton.
- People are 58.2% more likely to be married in Crystal Lake.
- The Median Age is 1.4 years older in Crystal Lake.
 Alton, ILCrystal Lake, ILUnited States
 Population  Unlock40,082329,725,481
 Female Population52.2%  Unlock50.5%
 Male Population47.8%  Unlock49.5%
 Median Age  Unlock39.538.4
 space3
 Population - 201027,901  Unlock309,327,143
 Population - 2000  Unlock38,000285,036,114
 Population - 199032,905  Unlock251,960,433
 Pop. 2000 to Now  Unlock4.3%15.6%
 Pop. 1990 to Now-20.8%  Unlock30.8%
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 Population Density  Unlock2,127.093.4
 Land Area15.5  Unlock3,531,905.4
 Water Area  Unlock0.6264,836.8
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 Est. Total Population By Age
 Alton, ILCrystal Lake, ILUnited States
 Age 0 to 45.5%  Unlock5.9%
 Age 5 to 9  Unlock7.0%6.1%
 Age 10 to 147.2%  Unlock6.6%
 Age 15 to 17  Unlock5.2%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock4.6%5.2%
 Age 25 to 3414.5%  Unlock13.8%
 Age 35 to 44  Unlock14.9%12.9%
 Age 45 to 5411.7%  Unlock12.6%
 Age 55 to 59  Unlock7.4%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock9.6%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
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 Race
 Alton, ILCrystal Lake, ILUnited States
 White67.1%  Unlock59.4%
 Black  Unlock0.9%12.2%
 Asian0.6%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races5.0%  Unlock3.2%
 Hispanic  Unlock12.5%18.4%
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 Marriage & Family
 Alton, ILCrystal Lake, ILUnited States
 Married Population36.6%  Unlock49.8%
     Currently Married  Unlock57.1%48.0%
 Married but Separated2.8%  Unlock1.8%
 Single Population  Unlock42.1%50.2%
 Never Married37.6%  Unlock33.8%
 Divorced  Unlock8.3%10.8%
 Widowed8.7%  Unlock5.6%
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 Household Size  Unlock2.762.60
 Households11,097  Unlock124,010,992
 Family Households  Unlock11,07380,755,759
     Married couple, w/children23.2%  Unlock30.5%
     Married couple, no children  Unlock44.0%42.9%
 Non Family Households5,244  Unlock43,255,233
     Single householder, w/children  Unlock12.3%15.8%
     Single householder, no children13.3%  Unlock10.8%
Reviews for Alton    7 Reviews

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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Over 2 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

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Over 10 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 Crystal Lake    7 Reviews

Over 11 years ago

Great area for recreational boating, fishing and biking. Great place to involve your kids as there are lots of opportunities' for football, baseball and dance. For  More

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Over 12 years ago

I have been living here for 12 years. It's a nice community with friendly people, but I hate the weather. It feels like winter is 6 months long with many overcast days,  More

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Over 12 years ago

A nice place to raise a family, but not a lot of diversity. We are looking to move from here and searching in the Colorado  More

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