2026 Compare Cities People:
Costa Mesa, CA vs Caldwell, ID

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Highlights
- Caldwell is 0% more densely populated than Costa Mesa.
- People are 13.4% more likely to be married in Caldwell.
- The Median Age is 6.1 years younger in Caldwell.
 Costa Mesa, CACaldwell, IDUnited States
 Population  Unlock58,872329,725,481
 Female Population49.2%  Unlock50.5%
 Male Population50.8%  Unlock49.5%
 Median Age  Unlock29.938.4
 space3
 Population - 2010110,137  Unlock309,327,143
 Population - 2000  Unlock25,967285,036,114
 Population - 199096,357  Unlock251,960,433
 Pop. 2000 to Now  Unlock133.7%15.6%
 Pop. 1990 to Now16.6%  Unlock30.8%
 space4
 Population Density  Unlock2,650.593.4
 Land Area15.8  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Costa Mesa, CACaldwell, IDUnited States
 Age 0 to 45.7%  Unlock5.9%
 Age 5 to 9  Unlock9.3%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock4.6%3.9%
 Age 18 to 203.3%  Unlock4.0%
 Age 21 to 24  Unlock4.9%5.2%
 Age 25 to 3419.6%  Unlock13.8%
 Age 35 to 44  Unlock13.0%12.9%
 Age 45 to 5413.4%  Unlock12.6%
 Age 55 to 59  Unlock5.3%6.7%
 Age 60 to 644.9%  Unlock6.3%
 Age 65 to 74  Unlock5.1%9.6%
 Age 75 to 843.0%  Unlock4.5%
 Age 85 and over  Unlock1.0%1.9%
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 Race
 Costa Mesa, CACaldwell, IDUnited States
 White49.1%  Unlock59.4%
 Black  Unlock0.4%12.2%
 Asian9.0%  Unlock5.6%
 Native American  Unlock0.6%0.6%
 Hawaiian, Pacific Islander0.6%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.7%  Unlock3.2%
 Hispanic  Unlock37.5%18.4%
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 Marriage & Family
 Costa Mesa, CACaldwell, IDUnited States
 Married Population45.1%  Unlock49.8%
     Currently Married  Unlock49.4%48.0%
 Married but Separated1.7%  Unlock1.8%
 Single Population  Unlock48.9%50.2%
 Never Married41.0%  Unlock33.8%
 Divorced  Unlock12.8%10.8%
 Widowed3.4%  Unlock5.6%
 space5
 Household Size  Unlock3.152.60
 Households41,243  Unlock124,010,992
 Family Households  Unlock12,97280,755,759
     Married couple, w/children32.7%  Unlock30.5%
     Married couple, no children  Unlock26.6%42.9%
 Non Family Households16,740  Unlock43,255,233
     Single householder, w/children  Unlock18.5%15.8%
     Single householder, no children11.8%  Unlock10.8%
Reviews for Costa Mesa    8 Reviews

Over 16 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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Over 17 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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We have a good amount of low-income, medium-income, and relatively high-income  More

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Reviews for Caldwell    6 Reviews

I love where we live! Indian Creek Plaza and the renovation of downtown has all been incredible for our community. So many family-friendly events all throughout the  More

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I’ve lived in this city for 2 1/2 years, It is a very livable community. It is a very diverse city with a large Latino population and a agricultural heritage. The  More

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Over 10 years ago

Looks like there are not a lot of Doctors for the amount of people living there. Do you have to got to Boise to get good Heath care? How about the local hospital? Any  More

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