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2026 Compare Cities People:
Key West, FL vs Port St. John, FL

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Highlights
- Port St. John is 0% more densely populated than Key West.
- People are 21.4% more likely to be married in Port St. John.
- The Median Age is 2.5 years younger in Port St. John.
 Key West, FLPort St. John, FLUnited States
 Population  Unlock24,677329,725,481
 Female Population47.0%  Unlock50.5%
 Male Population53.0%  Unlock49.5%
 Median Age  Unlock41.738.4
 space3
 Population - 201024,662  Unlock309,327,143
 Population - 2000  Unlock12,112285,036,114
 Population - 199024,832  Unlock251,960,433
 Pop. 2000 to Now  Unlock2.0%15.6%
 Pop. 1990 to Now-4.3%  Unlock30.8%
 space4
 Population Density  Unlock6,368.393.4
 Land Area5.6  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Key West, FLPort St. John, FLUnited States
 Age 0 to 44.0%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 144.6%  Unlock6.6%
 Age 15 to 17  Unlock2.6%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock3.8%5.2%
 Age 25 to 3415.5%  Unlock13.8%
 Age 35 to 44  Unlock13.1%12.9%
 Age 45 to 5413.3%  Unlock12.6%
 Age 55 to 59  Unlock8.7%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock10.7%9.6%
 Age 75 to 844.8%  Unlock4.5%
 Age 85 and over  Unlock1.4%1.9%
 space1
 Race
 Key West, FLPort St. John, FLUnited States
 White58.9%  Unlock59.4%
 Black  Unlock4.7%12.2%
 Asian1.7%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races2.1%  Unlock3.2%
 Hispanic  Unlock6.1%18.4%
 space2
 Marriage & Family
 Key West, FLPort St. John, FLUnited States
 Married Population45.1%  Unlock49.8%
     Currently Married  Unlock54.1%48.0%
 Married but Separated2.1%  Unlock1.8%
 Single Population  Unlock45.3%50.2%
 Never Married34.1%  Unlock33.8%
 Divorced  Unlock10.9%10.8%
 Widowed4.8%  Unlock5.6%
 space5
 Household Size  Unlock2.762.60
 Households11,002  Unlock124,010,992
 Family Households  Unlock6,45580,755,759
     Married couple, w/children23.7%  Unlock30.5%
     Married couple, no children  Unlock55.9%42.9%
 Non Family Households5,254  Unlock43,255,233
     Single householder, w/children  Unlock9.3%15.8%
     Single householder, no children6.8%  Unlock10.8%
Voting
Reviews for Key West    7 Reviews
Anthoney · Key West, FL
Real cost of living averages for Key West, FL.
Over 5 years ago

I was raised in Key West since 1980, these average cost prices for rent that you are seeing were not even accurate then, let alone now in 2021. The average cost of  More

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Tom · Arlington, TN
Key West
Over 10 years ago

Like the  More

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Anthony · Key West, FL
Cost of Living Inconsistency.
Over 12 years ago

I have lived in Key West for the last seven years. During that time, I have observed very little change in the cost of living. I work for a national company that pays  More

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Reviews for Port St. John    1 Reviews
st john · Cocoa, FL
port st john would be ok
Over 16 years ago

Except it is in Brevard County. Too conservative...not enough real business here and honestly I think its because big business wants quality of life. The schools arent  More

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Learn More About Key West, Florida
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