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2025 Compare Cities People:
Marco Island, FL vs Key Largo, FL

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Highlights
- Key Largo is 0% more densely populated than Marco Island.
- People are 28.1% less likely to be married in Key Largo.
- The Median Age is 14.9 years younger in Key Largo.
 Marco Island, FLKey Largo, FLUnited States
 Population  Unlock10,854329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock5238.4
 space3
 Population - 201016,453  Unlock309,327,143
 Population - 2000  Unlock11,886285,036,114
 Population - 19909,980  Unlock251,960,433
 Pop. 2000 to Now  Unlock-18.4%15.6%
 Pop. 1990 to Now81.3%  Unlock30.8%
 space4
 Population Density  Unlock900.793.4
 Land Area12.2  Unlock3,531,905.4
 Water Area  Unlock3.2264,836.8
 space
 Est. Total Population By Age
 Marco Island, FLKey Largo, FLUnited States
 Age 0 to 41.0%  Unlock5.9%
 Age 5 to 9  Unlock3.9%6.1%
 Age 10 to 142.9%  Unlock6.6%
 Age 15 to 17  Unlock1.4%3.9%
 Age 18 to 200.7%  Unlock4.0%
 Age 21 to 24  Unlock2.8%5.2%
 Age 25 to 343.4%  Unlock13.8%
 Age 35 to 44  Unlock13.0%12.9%
 Age 45 to 548.1%  Unlock12.6%
 Age 55 to 59  Unlock8.2%6.7%
 Age 60 to 649.7%  Unlock6.3%
 Age 65 to 74  Unlock17.1%9.6%
 Age 75 to 8423.8%  Unlock4.5%
 Age 85 and over  Unlock3.6%1.9%
 space1
 Race
 Marco Island, FLKey Largo, FLUnited States
 White89.4%  Unlock59.4%
 Black  Unlock0.2%12.2%
 Asian0.8%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.5%0.4%
 Two or More Races1.1%  Unlock3.2%
 Hispanic  Unlock27.0%18.4%
 space2
 Marriage & Family
 Marco Island, FLKey Largo, FLUnited States
 Married Population75.5%  Unlock49.8%
     Currently Married  Unlock53.8%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock45.7%50.2%
 Never Married8.9%  Unlock33.8%
 Divorced  Unlock15.7%10.8%
 Widowed8.9%  Unlock5.6%
 space5
 Household Size  Unlock2.352.60
 Households8,131  Unlock124,010,992
 Family Households  Unlock2,84680,755,759
     Married couple, w/children9.3%  Unlock30.5%
     Married couple, no children  Unlock60.8%42.9%
 Non Family Households2,395  Unlock43,255,233
     Single householder, w/children  Unlock9.1%15.8%
     Single householder, no children3.1%  Unlock10.8%
Voting
Reviews for Marco Island    3 Reviews
Lani · San Diego, CA
Absolute Paradise (island life)
Over 4 years ago

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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Kathryn · Marco Island, FL
Great Place to Retire To
Over 8 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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Ernie  · Homestead, FL
Outsiders not welcomed at Marco Island
Over 9 years ago

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 Key Largo    3 Reviews
Erik · Key Largo, FL
2 Bedroom 2 Full Bath, 2 Walk in Closets 2 Car Par
Over 12 years ago

Home for Sale 1012 Dove Road Key Largo Florida 33037 Sunny warm Key  More

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Carolyn · Key Largo, FL
I feel very safe here
Over 19 years ago

The very low crime rate makes it very desirable for us to raise our family. The library has great story hours and lots of children's books, and an easy computerized  More

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Natalie · Tavernier, FL
No affordable housing
Over 19 years ago

My husband and I are one of the few people who moved to the Keys because of the job, not because of the Keys themselves. We are unable to live in our own place because  More

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Learn More About Marco Island, Florida
Overview
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Learn More About Key Largo, Florida
Overview
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Voting
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