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2025 Compare Cities People:
Longmont, CO vs Costa Mesa, CA

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Highlights
- Costa Mesa is 0% more densely populated than Longmont.
- People are 9.1% less likely to be married in Costa Mesa.
- The Median Age is 3.5 years younger in Costa Mesa.
 Longmont, COCosta Mesa, CAUnited States
 Population  Unlock112,148329,725,481
 Female Population50.4%  Unlock50.5%
 Male Population49.6%  Unlock49.5%
 Median Age  Unlock3638.4
 space3
 Population - 201086,616  Unlock309,327,143
 Population - 2000  Unlock108,724285,036,114
 Population - 199051,555  Unlock251,960,433
 Pop. 2000 to Now  Unlock3.4%15.6%
 Pop. 1990 to Now91.0%  Unlock30.8%
 space4
 Population Density  Unlock7,099.893.4
 Land Area27.6  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Longmont, COCosta Mesa, CAUnited States
 Age 0 to 45.1%  Unlock5.9%
 Age 5 to 9  Unlock4.8%6.1%
 Age 10 to 146.3%  Unlock6.6%
 Age 15 to 17  Unlock3.2%3.9%
 Age 18 to 203.4%  Unlock4.0%
 Age 21 to 24  Unlock5.1%5.2%
 Age 25 to 3413.6%  Unlock13.8%
 Age 35 to 44  Unlock15.1%12.9%
 Age 45 to 5412.6%  Unlock12.6%
 Age 55 to 59  Unlock6.4%6.7%
 Age 60 to 646.5%  Unlock6.3%
 Age 65 to 74  Unlock7.5%9.6%
 Age 75 to 844.2%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
 space1
 Race
 Longmont, COCosta Mesa, CAUnited States
 White68.3%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian3.3%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races3.2%  Unlock3.2%
 Hispanic  Unlock35.9%18.4%
 space2
 Marriage & Family
 Longmont, COCosta Mesa, CAUnited States
 Married Population49.6%  Unlock49.8%
     Currently Married  Unlock43.3%48.0%
 Married but Separated1.2%  Unlock1.8%
 Single Population  Unlock54.9%50.2%
 Never Married31.8%  Unlock33.8%
 Divorced  Unlock10.6%10.8%
 Widowed5.2%  Unlock5.6%
 space5
 Household Size  Unlock2.682.60
 Households39,237  Unlock124,010,992
 Family Households  Unlock24,50380,755,759
     Married couple, w/children30.3%  Unlock30.5%
     Married couple, no children  Unlock40.8%42.9%
 Non Family Households14,445  Unlock43,255,233
     Single householder, w/children  Unlock14.8%15.8%
     Single householder, no children9.4%  Unlock10.8%
Voting
Reviews for Longmont    19 Reviews
Michele · Escondido, CA
Nice place for families. Bring a parka.
Over 4 years ago

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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jeremiah · Longmont, CO
Great place to live !
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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john · Longmont, CO
Great Place to Raise a Family
Over 6 years ago

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 Costa Mesa    8 Reviews
JESSICA · Newport Beach, CA
CROWDED
Over 15 years ago

Costa mesa has awesome shopping but is way too crowded and I have had 3 cars stolen in the past 5 years along with countless break-ins and theft. Expensive. Close to  More

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Fred · Costa Mesa, CA
Perfect Climate
Over 16 years ago

Costa Mesa has a near perfect climate . . . plenty of sun but rarely over 100 degrees (our house doesn't even have AC). Nestled between Newport Beach and Huntington  More

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Jacob  · Costa Mesa, CA
Cost of Living in Costa Mesa
Over 16 years ago

We have a good amount of low-income, medium-income, and relatively high-income  More

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Learn More About Longmont, Colorado
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Learn More About Costa Mesa, California
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