2025 Compare Cities People:
Longmont, CO vs Boulder, CO

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Highlights
- Boulder is 0% more densely populated than Longmont.
- People are 35.6% less likely to be married in Boulder.
- The Median Age is 10.6 years younger in Boulder.
 Longmont, COBoulder, COUnited States
 Population  Unlock104,930329,725,481
 Female Population50.4%  Unlock50.5%
 Male Population49.6%  Unlock49.5%
 Median Age  Unlock28.938.4
 space3
 Population - 201086,616  Unlock309,327,143
 Population - 2000  Unlock94,673285,036,114
 Population - 199051,555  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.7%15.6%
 Pop. 1990 to Now91.0%  Unlock30.8%
 space4
 Population Density  Unlock3,991.493.4
 Land Area27.6  Unlock3,531,905.4
 Water Area  Unlock1.0264,836.8
 space
 Est. Total Population By Age
 Longmont, COBoulder, COUnited States
 Age 0 to 45.1%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 146.3%  Unlock6.6%
 Age 15 to 17  Unlock2.5%3.9%
 Age 18 to 203.4%  Unlock4.0%
 Age 21 to 24  Unlock13.8%5.2%
 Age 25 to 3413.6%  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 646.5%  Unlock6.3%
 Age 65 to 74  Unlock7.0%9.6%
 Age 75 to 844.2%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
 space1
 Race
 Longmont, COBoulder, COUnited States
 White68.3%  Unlock59.4%
 Black  Unlock1.0%12.2%
 Asian3.3%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.2%  Unlock3.2%
 Hispanic  Unlock10.6%18.4%
 space2
 Marriage & Family
 Longmont, COBoulder, COUnited States
 Married Population49.6%  Unlock49.8%
     Currently Married  Unlock31.2%48.0%
 Married but Separated1.2%  Unlock1.8%
 Single Population  Unlock68.1%50.2%
 Never Married31.8%  Unlock33.8%
 Divorced  Unlock9.5%10.8%
 Widowed5.2%  Unlock5.6%
 space5
 Household Size  Unlock2.212.60
 Households39,237  Unlock124,010,992
 Family Households  Unlock17,34180,755,759
     Married couple, w/children30.3%  Unlock30.5%
     Married couple, no children  Unlock47.4%42.9%
 Non Family Households14,445  Unlock43,255,233
     Single householder, w/children  Unlock10.8%15.8%
     Single householder, no children9.4%  Unlock10.8%
Reviews for Longmont    19 Reviews

I lived here for 4 years and it's pretty nice. It gets cold and stays cold for a good 8 months, but other than that I loved it. There are a lot of amenities. It is  More

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Over 6 years ago

I just move from other state to Longmont. In my opinion Longmont is one of the safest city in US which is have a low crime, its great city to raised family .Has a great  More

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Fantastic place to live. Four golf courses, many parks, 10 minutes to the foothills and 40 minutes from the Rockies, the location is hard to beat if you want to be 45  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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