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2025 Compare Cities People:
Sun Valley, ID vs Lake Forest, IL

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Highlights
- Lake Forest is 0% more densely populated than Sun Valley.
- People are 16.9% more likely to be married in Lake Forest.
- The Median Age is 11.6 years younger in Lake Forest.
 Sun Valley, IDLake Forest, ILUnited States
 Population  Unlock19,450329,725,481
 Female Population52.7%  Unlock50.5%
 Male Population47.3%  Unlock49.5%
 Median Age  Unlock46.438.4
 space3
 Population - 20101,405  Unlock309,327,143
 Population - 2000  Unlock20,059285,036,114
 Population - 1990938  Unlock251,960,433
 Pop. 2000 to Now  Unlock-3.4%15.6%
 Pop. 1990 to Now60.2%  Unlock30.8%
 space4
 Population Density  Unlock1,130.893.4
 Land Area9.6  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Sun Valley, IDLake Forest, ILUnited States
 Age 0 to 42.5%  Unlock5.9%
 Age 5 to 9  Unlock4.7%6.1%
 Age 10 to 140.0%  Unlock6.6%
 Age 15 to 17  Unlock4.8%3.9%
 Age 18 to 203.4%  Unlock4.0%
 Age 21 to 24  Unlock6.7%5.2%
 Age 25 to 343.4%  Unlock13.8%
 Age 35 to 44  Unlock7.7%12.9%
 Age 45 to 5417.5%  Unlock12.6%
 Age 55 to 59  Unlock7.5%6.7%
 Age 60 to 646.0%  Unlock6.3%
 Age 65 to 74  Unlock13.2%9.6%
 Age 75 to 848.9%  Unlock4.5%
 Age 85 and over  Unlock4.0%1.9%
 space1
 Race
 Sun Valley, IDLake Forest, ILUnited States
 White83.2%  Unlock59.4%
 Black  Unlock1.0%12.2%
 Asian0.4%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.8%0.4%
 Two or More Races5.1%  Unlock3.2%
 Hispanic  Unlock5.2%18.4%
 space2
 Marriage & Family
 Sun Valley, IDLake Forest, ILUnited States
 Married Population48.8%  Unlock49.8%
     Currently Married  Unlock56.6%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock42.9%50.2%
 Never Married23.5%  Unlock33.8%
 Divorced  Unlock6.3%10.8%
 Widowed4.5%  Unlock5.6%
 space5
 Household Size  Unlock2.612.60
 Households513  Unlock124,010,992
 Family Households  Unlock5,08580,755,759
     Married couple, w/children16.1%  Unlock30.5%
     Married couple, no children  Unlock54.1%42.9%
 Non Family Households264  Unlock43,255,233
     Single householder, w/children  Unlock4.8%15.8%
     Single householder, no children3.6%  Unlock10.8%
Voting
Reviews for Sun Valley    5 Reviews
BLT · Sun Valley, ID
Sun Valley - Retirement Community for the Rich
Over 15 years ago

Young people living in Sun Valley, unless they have a trust fund can expect to have a difficult time here. The average age seems to be approx 78. Any business that is  More

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Cynthia · Ketchum, ID
Sun Valley....a love/hate relationship!
Over 18 years ago

Absolutely beautiful. Nice people. Amazing skiing...all types of recreation for anyone and everyone. Summer temperatures are perfect. It's sunny more than 250 days  More

   |    Reply
Bob · Sun Valley, ID
short seasons
Over 19 years ago

Winters are long, and summers can be short!!! The physcial beauty of the area is unbeatable,  More

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Reviews for Lake Forest    4 Reviews
SD · Lake Forest, IL
Nice place to raise a family
Over 7 years ago

We relocated cross county to Lake Forest about a year ago due to a job change. We looked at nearby communities, within proximity of the work commute (the office is in  More

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John  · Detroit, MI
One of the most snotty, rude places I ever stayed
Over 10 years ago

Be prepared for a so called upscale town with entitled, overpaid, snooty people from teenagers who sneer at you to adults who look you up and down, who make demands on a  More

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cindy · Lake Forest, IL
climate
Over 15 years ago

Long cold winters, short cold springs, hot humid summers, nice  More

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Learn More About Sun Valley, Idaho
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