2026 Compare Cities People:
Keystone, CO vs Fernandina Beach, FL

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Highlights
- Fernandina Beach is 0% more densely populated than Keystone.
- People are 192.7% more likely to be married in Fernandina Beach.
- The Median Age is 22.7 years older in Fernandina Beach.
 Keystone, COFernandina Beach, FLUnited States
 Population  Unlock12,697329,725,481
 Female Population63.2%  Unlock50.5%
 Male Population36.8%  Unlock49.5%
 Median Age  Unlock56.738.4
 space3
 Population - 2010765  Unlock309,327,143
 Population - 2000  Unlock10,549285,036,114
 Population - 1990466  Unlock251,960,433
 Pop. 2000 to Now  Unlock26.0%15.6%
 Pop. 1990 to Now159.4%  Unlock30.8%
 space4
 Population Density  Unlock1,109.993.4
 Land Area41.4  Unlock3,531,905.4
 Water Area  Unlock0.7264,836.8
 space
 Est. Total Population By Age
 Keystone, COFernandina Beach, FLUnited States
 Age 0 to 40.0%  Unlock5.9%
 Age 5 to 9  Unlock2.5%6.1%
 Age 10 to 140.0%  Unlock6.6%
 Age 15 to 17  Unlock1.7%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock2.9%5.2%
 Age 25 to 3418.8%  Unlock13.8%
 Age 35 to 44  Unlock8.4%12.9%
 Age 45 to 5411.3%  Unlock12.6%
 Age 55 to 59  Unlock9.5%6.7%
 Age 60 to 642.9%  Unlock6.3%
 Age 65 to 74  Unlock20.5%9.6%
 Age 75 to 849.8%  Unlock4.5%
 Age 85 and over  Unlock2.0%1.9%
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 Race
 Keystone, COFernandina Beach, FLUnited States
 White43.9%  Unlock59.4%
 Black  Unlock11.7%12.2%
 Asian0.0%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races7.0%  Unlock3.2%
 Hispanic  Unlock11.9%18.4%
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 Marriage & Family
 Keystone, COFernandina Beach, FLUnited States
 Married Population18.2%  Unlock49.8%
     Currently Married  Unlock52.4%48.0%
 Married but Separated4.3%  Unlock1.8%
 Single Population  Unlock46.8%50.2%
 Never Married54.0%  Unlock33.8%
 Divorced  Unlock13.5%10.8%
 Widowed0.0%  Unlock5.6%
 space5
 Household Size  Unlock2.122.60
 Households327  Unlock124,010,992
 Family Households  Unlock3,74580,755,759
     Married couple, w/children0.0%  Unlock30.5%
     Married couple, no children  Unlock62.8%42.9%
 Non Family Households298  Unlock43,255,233
     Single householder, w/children  Unlock6.9%15.8%
     Single householder, no children0.0%  Unlock10.8%
Reviews for Keystone    1 Reviews

Overall, decent place to live, but be prepared to live side-by-side with "tourists" from around the U.S.--often from Texas and California. This means, except for a  More

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Reviews for Fernandina Beach    8 Reviews

We traveled the entire east and west coasts of Florida and the entire east coast of Georgia. We LOVED St. Marys GA. but decided on Amelia Island... Mainly because AI has  More

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Over 6 years ago

There is no place in Florida like Amelia Island, Fernandina Beach. The beach is beautiful.. But, best of all are the people. Real Southern hospitality... Southern charm  More

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Over 12 years ago

Came back to Fernandina after a long hiatus. Fernandina has always been a magical place, but many things are getting better. The restaurant scene has improved  More

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