2026 Compare Cities People:
Marco Island, FL vs Seal Beach, CA

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Highlights
- Seal Beach is 0% more densely populated than Marco Island.
- People are 32.7% less likely to be married in Seal Beach.
- The Median Age is 7.6 years younger in Seal Beach.
 Marco Island, FLSeal Beach, CAUnited States
 Population  Unlock25,216329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock59.338.4
 space3
 Population - 201016,453  Unlock309,327,143
 Population - 2000  Unlock24,157285,036,114
 Population - 19909,980  Unlock251,960,433
 Pop. 2000 to Now  Unlock-1.1%15.6%
 Pop. 1990 to Now81.3%  Unlock30.8%
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 Population Density  Unlock2,235.993.4
 Land Area12.2  Unlock3,531,905.4
 Water Area  Unlock1.7264,836.8
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 Est. Total Population By Age
 Marco Island, FLSeal Beach, CAUnited States
 Age 0 to 41.0%  Unlock5.9%
 Age 5 to 9  Unlock3.5%6.1%
 Age 10 to 142.9%  Unlock6.6%
 Age 15 to 17  Unlock2.8%3.9%
 Age 18 to 200.7%  Unlock4.0%
 Age 21 to 24  Unlock1.7%5.2%
 Age 25 to 343.4%  Unlock13.8%
 Age 35 to 44  Unlock8.7%12.9%
 Age 45 to 548.1%  Unlock12.6%
 Age 55 to 59  Unlock7.2%6.7%
 Age 60 to 649.7%  Unlock6.3%
 Age 65 to 74  Unlock19.7%9.6%
 Age 75 to 8423.8%  Unlock4.5%
 Age 85 and over  Unlock7.9%1.9%
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 Race
 Marco Island, FLSeal Beach, CAUnited States
 White89.4%  Unlock59.4%
 Black  Unlock2.0%12.2%
 Asian0.8%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races1.1%  Unlock3.2%
 Hispanic  Unlock11.8%18.4%
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 Marriage & Family
 Marco Island, FLSeal Beach, CAUnited States
 Married Population75.5%  Unlock49.8%
     Currently Married  Unlock49.1%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock49.2%50.2%
 Never Married8.9%  Unlock33.8%
 Divorced  Unlock13.5%10.8%
 Widowed8.9%  Unlock5.6%
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 Household Size  Unlock1.912.60
 Households8,131  Unlock124,010,992
 Family Households  Unlock6,13980,755,759
     Married couple, w/children9.3%  Unlock30.5%
     Married couple, no children  Unlock60.4%42.9%
 Non Family Households2,395  Unlock43,255,233
     Single householder, w/children  Unlock8.6%15.8%
     Single householder, no children3.1%  Unlock10.8%
Reviews for Marco Island    3 Reviews

We just purchased a home here from San Diego, Ca. Marco island is so refreshing! It is Clean, no trash, people care about their yards and community with impeccable  More

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Over 9 years ago

We moved here upon retirement and have been delighted with our new community. With canals crisscrossing the entire island, most homesites are on the water, and we enjoy  More

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I have been coming to Marco Island for the past couple of years to spend the 4th of July with my family in this beautiful city, but never again. From what we learned  More

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Reviews for Seal Beach    3 Reviews

Beach towns are notoriously crowded in the summer, but if you can overlook the crowds you will find a small town feeling comforting in Seal Beach. The beach community of  More

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Over 19 years ago

Seal Beach has the best weather of any place I've lived, and I've lived in two coutries, 5 states, and 14 cities or towns. Seal Beach has vitually no air pullution,  More

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My dad and uncle were born and raised in Seal Beach; my grandparents bought their family home back in 1963 (when my dad was 12) for about $50K. 3 bedroom, 2 bath,  More

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