2025 Compare Cities People:
Oak Park, IL vs Boulder, CO

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Highlights
- Boulder is 0% more densely populated than Oak Park.
- People are 35.9% less likely to be married in Boulder.
- The Median Age is 11.0 years younger in Boulder.
 Oak Park, ILBoulder, COUnited States
 Population  Unlock104,930329,725,481
 Female Population53.0%  Unlock50.5%
 Male Population47.0%  Unlock49.5%
 Median Age  Unlock28.938.4
 space3
 Population - 201051,896  Unlock309,327,143
 Population - 2000  Unlock94,673285,036,114
 Population - 199053,648  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.7%15.6%
 Pop. 1990 to Now-3.4%  Unlock30.8%
 space4
 Population Density  Unlock3,991.493.4
 Land Area4.7  Unlock3,531,905.4
 Water Area  Unlock1.0264,836.8
 space
 Est. Total Population By Age
 Oak Park, ILBoulder, COUnited States
 Age 0 to 45.3%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 147.0%  Unlock6.6%
 Age 15 to 17  Unlock2.5%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock13.8%5.2%
 Age 25 to 3412.3%  Unlock13.8%
 Age 35 to 44  Unlock10.3%12.9%
 Age 45 to 5414.8%  Unlock12.6%
 Age 55 to 59  Unlock4.5%6.7%
 Age 60 to 646.0%  Unlock6.3%
 Age 65 to 74  Unlock7.0%9.6%
 Age 75 to 844.6%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
 space1
 Race
 Oak Park, ILBoulder, COUnited States
 White60.4%  Unlock59.4%
 Black  Unlock1.0%12.2%
 Asian5.3%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races5.5%  Unlock3.2%
 Hispanic  Unlock10.6%18.4%
 space2
 Marriage & Family
 Oak Park, ILBoulder, COUnited States
 Married Population49.8%  Unlock49.8%
     Currently Married  Unlock31.2%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock68.1%50.2%
 Never Married35.9%  Unlock33.8%
 Divorced  Unlock9.5%10.8%
 Widowed4.6%  Unlock5.6%
 space5
 Household Size  Unlock2.212.60
 Households22,793  Unlock124,010,992
 Family Households  Unlock17,34180,755,759
     Married couple, w/children38.8%  Unlock30.5%
     Married couple, no children  Unlock47.4%42.9%
 Non Family Households9,566  Unlock43,255,233
     Single householder, w/children  Unlock10.8%15.8%
     Single householder, no children9.2%  Unlock10.8%
Reviews for Oak Park    7 Reviews

We've lived in Oak Park for 25 years, raising our two children here. Now, looking ahead a few years, the Cost of Living (127), is a major factor in searching for  More

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I have grew up in the Oak Park area and have lived in other cities in the country. Oak Park is located outside of the city of Chicago. Though located reasonably  More

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Over 15 years ago

If you don't know any better you might think Oak Park is perfect. However, if you are like me and have other places as a comparison, you know better. I will say that  More

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Reviews for Boulder    55 Reviews

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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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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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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