2025 Compare Cities People:
Phoenix, AZ vs Boulder, CO

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Highlights
- Boulder is 0% more densely populated than Phoenix.
- People are 28.5% less likely to be married in Boulder.
- The Median Age is 5.2 years younger in Boulder.
 Phoenix, AZBoulder, COUnited States
 Population  Unlock104,930329,725,481
 Female Population49.7%  Unlock50.5%
 Male Population50.3%  Unlock49.5%
 Median Age  Unlock28.938.4
 space3
 Population - 20101,448,998  Unlock309,327,143
 Population - 2000  Unlock94,673285,036,114
 Population - 1990983,403  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.7%15.6%
 Pop. 1990 to Now73.7%  Unlock30.8%
 space4
 Population Density  Unlock3,991.493.4
 Land Area517.7  Unlock3,531,905.4
 Water Area  Unlock1.0264,836.8
 space
 Est. Total Population By Age
 Phoenix, AZBoulder, COUnited States
 Age 0 to 46.8%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 147.4%  Unlock6.6%
 Age 15 to 17  Unlock2.5%3.9%
 Age 18 to 204.1%  Unlock4.0%
 Age 21 to 24  Unlock13.8%5.2%
 Age 25 to 3416.2%  Unlock13.8%
 Age 35 to 44  Unlock10.3%12.9%
 Age 45 to 5412.6%  Unlock12.6%
 Age 55 to 59  Unlock4.5%6.7%
 Age 60 to 645.1%  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
 Phoenix, AZBoulder, COUnited States
 White41.4%  Unlock59.4%
 Black  Unlock1.0%12.2%
 Asian3.8%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.2%  Unlock3.2%
 Hispanic  Unlock10.6%18.4%
 space2
 Marriage & Family
 Phoenix, AZBoulder, COUnited States
 Married Population44.7%  Unlock49.8%
     Currently Married  Unlock31.2%48.0%
 Married but Separated2.1%  Unlock1.8%
 Single Population  Unlock68.1%50.2%
 Never Married39.1%  Unlock33.8%
 Divorced  Unlock9.5%10.8%
 Widowed4.0%  Unlock5.6%
 space5
 Household Size  Unlock2.212.60
 Households579,876  Unlock124,010,992
 Family Households  Unlock17,34180,755,759
     Married couple, w/children31.6%  Unlock30.5%
     Married couple, no children  Unlock47.4%42.9%
 Non Family Households211,288  Unlock43,255,233
     Single householder, w/children  Unlock10.8%15.8%
     Single householder, no children12.3%  Unlock10.8%
Reviews for Phoenix    449 Reviews

Over 1 years ago

As someone that has worked in Phoenix for close to 20 years now. There is great areas to eat at, great opportunities for premium small businesses to set up shop and even  More

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Over 1 years ago

Phoenix is a city of potential and definitely has a bad reputation that is not completely deserved all throughout the city itself. There is tons of things to do, places  More

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Phoenix has tons of the best places to shop and eat at bar none due to it being the big city. Downtown is definitely underrated. There also is some nice new developments  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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