2025 Compare Cities People:
Waltham, MA vs Costa Mesa, CA

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Highlights
- Costa Mesa is 0% more densely populated than Waltham.
- People are 17.9% more likely to be married in Costa Mesa.
- The Median Age is 2.2 years older in Costa Mesa.
 Waltham, MACosta Mesa, CAUnited States
 Population  Unlock112,148329,725,481
 Female Population50.8%  Unlock50.5%
 Male Population49.2%  Unlock49.5%
 Median Age  Unlock3638.4
 space3
 Population - 201060,912  Unlock309,327,143
 Population - 2000  Unlock108,724285,036,114
 Population - 199057,878  Unlock251,960,433
 Pop. 2000 to Now  Unlock3.4%15.6%
 Pop. 1990 to Now7.2%  Unlock30.8%
 space4
 Population Density  Unlock7,099.893.4
 Land Area12.7  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Waltham, MACosta Mesa, CAUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock4.8%6.1%
 Age 10 to 143.5%  Unlock6.6%
 Age 15 to 17  Unlock3.2%3.9%
 Age 18 to 209.4%  Unlock4.0%
 Age 21 to 24  Unlock5.1%5.2%
 Age 25 to 3418.1%  Unlock13.8%
 Age 35 to 44  Unlock15.1%12.9%
 Age 45 to 549.9%  Unlock12.6%
 Age 55 to 59  Unlock6.4%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock7.5%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
 space1
 Race
 Waltham, MACosta Mesa, CAUnited States
 White63.8%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian12.1%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races2.6%  Unlock3.2%
 Hispanic  Unlock35.9%18.4%
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 Marriage & Family
 Waltham, MACosta Mesa, CAUnited States
 Married Population38.2%  Unlock49.8%
     Currently Married  Unlock43.3%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock54.9%50.2%
 Never Married49.3%  Unlock33.8%
 Divorced  Unlock10.6%10.8%
 Widowed5.1%  Unlock5.6%
 space5
 Household Size  Unlock2.682.60
 Households24,943  Unlock124,010,992
 Family Households  Unlock24,50380,755,759
     Married couple, w/children29.5%  Unlock30.5%
     Married couple, no children  Unlock40.8%42.9%
 Non Family Households12,268  Unlock43,255,233
     Single householder, w/children  Unlock14.8%15.8%
     Single householder, no children14.4%  Unlock10.8%
Reviews for Waltham    2 Reviews

Over 15 years ago

My husband and I moved from west of Worcester to Waltham a few months ago and are really enjoying life here. We're situated in an apartment close to Moody Street and  More

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Waltham is home to two well respected colleges/universities: Bentley and Brandeis. That, however, is not all. For within half an hour or so, by commuter train or car,  More

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Reviews for Costa Mesa    8 Reviews

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

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