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2025 Compare Cities People:
Buffalo Grove, IL vs Boulder, CO

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Highlights
- Boulder is 0% more densely populated than Buffalo Grove.
- People are 49.3% less likely to be married in Boulder.
- The Median Age is 12.3 years younger in Boulder.
 Buffalo Grove, ILBoulder, COUnited States
 Population  Unlock104,930329,725,481
 Female Population52.4%  Unlock50.5%
 Male Population47.6%  Unlock49.5%
 Median Age  Unlock28.938.4
 space3
 Population - 201041,543  Unlock309,327,143
 Population - 2000  Unlock94,673285,036,114
 Population - 199036,427  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.7%15.6%
 Pop. 1990 to Now10.3%  Unlock30.8%
 space4
 Population Density  Unlock3,991.493.4
 Land Area9.5  Unlock3,531,905.4
 Water Area  Unlock1.0264,836.8
 space
 Est. Total Population By Age
 Buffalo Grove, ILBoulder, COUnited States
 Age 0 to 46.0%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 147.1%  Unlock6.6%
 Age 15 to 17  Unlock2.5%3.9%
 Age 18 to 202.9%  Unlock4.0%
 Age 21 to 24  Unlock13.8%5.2%
 Age 25 to 3410.0%  Unlock13.8%
 Age 35 to 44  Unlock10.3%12.9%
 Age 45 to 5415.5%  Unlock12.6%
 Age 55 to 59  Unlock4.5%6.7%
 Age 60 to 647.1%  Unlock6.3%
 Age 65 to 74  Unlock7.0%9.6%
 Age 75 to 842.9%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
 space1
 Race
 Buffalo Grove, ILBoulder, COUnited States
 White63.2%  Unlock59.4%
 Black  Unlock1.0%12.2%
 Asian24.0%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races2.6%  Unlock3.2%
 Hispanic  Unlock10.6%18.4%
 space2
 Marriage & Family
 Buffalo Grove, ILBoulder, COUnited States
 Married Population63.1%  Unlock49.8%
     Currently Married  Unlock31.2%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock68.1%50.2%
 Never Married25.1%  Unlock33.8%
 Divorced  Unlock9.5%10.8%
 Widowed3.9%  Unlock5.6%
 space5
 Household Size  Unlock2.212.60
 Households15,982  Unlock124,010,992
 Family Households  Unlock17,34180,755,759
     Married couple, w/children42.1%  Unlock30.5%
     Married couple, no children  Unlock47.4%42.9%
 Non Family Households4,076  Unlock43,255,233
     Single householder, w/children  Unlock10.8%15.8%
     Single householder, no children5.6%  Unlock10.8%
Voting
Reviews for Buffalo Grove    7 Reviews
Linda · Buffalo Grove, IL
Outdoor recreation
Over 11 years ago

Numerous forest preserve areas with walking paths and places to play sports (baseball, soccer, football). Close driving distance to Lake Michigan and several  More

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jun · Buffalo Grove, IL
nice town to raise a family
Over 12 years ago

nice town to raise a  More

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Bp · Buffalo Grove, IL
Bison country
Over 17 years ago

No place is perfect however BG is at or near the top especially in schooling and crime prevention. Numerous parks and biking paths. A great place to raise a family safe  More

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Reviews for Boulder    55 Reviews
Guess · Boulder, CO
Expensive and requires liking a unique culture
Over 4 years ago

Outside of the university, Boulder had a very distinctive "wealthy hippy" feel. A lot of alternative medicine and a matching ethos. This is changing some among my  More

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Linda · Boulder, CO
I love it here! Such a beautiful and friendly city
Over 5 years ago

We moved here from Texas about 4 years ago and love it here! The amazing sense of community and high regard for the environment are two of the main reasons we love  More

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H · Denver, CO
Snob says it's ok
Over 5 years ago

Most people do much worse than Boulder. I'm the most critical person I've ever met who is never happy or satisfied -- so that's a pretty huge compliment.   More

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Learn More About Buffalo Grove, Illinois
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