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2026 Compare Cities People:
Key West, FL vs Arlington, WA

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Highlights
- Arlington is 0% more densely populated than Key West.
- People are 25.8% more likely to be married in Arlington.
- The Median Age is 5.0 years younger in Arlington.
 Key West, FLArlington, WAUnited States
 Population  Unlock19,832329,725,481
 Female Population47.0%  Unlock50.5%
 Male Population53.0%  Unlock49.5%
 Median Age  Unlock39.238.4
 space3
 Population - 201024,662  Unlock309,327,143
 Population - 2000  Unlock11,713285,036,114
 Population - 199024,832  Unlock251,960,433
 Pop. 2000 to Now  Unlock79.9%15.6%
 Pop. 1990 to Now-4.3%  Unlock30.8%
 space4
 Population Density  Unlock2,023.593.4
 Land Area5.6  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Key West, FLArlington, WAUnited States
 Age 0 to 44.0%  Unlock5.9%
 Age 5 to 9  Unlock6.0%6.1%
 Age 10 to 144.6%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 202.5%  Unlock4.0%
 Age 21 to 24  Unlock4.5%5.2%
 Age 25 to 3415.5%  Unlock13.8%
 Age 35 to 44  Unlock16.7%12.9%
 Age 45 to 5413.3%  Unlock12.6%
 Age 55 to 59  Unlock5.7%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock7.2%9.6%
 Age 75 to 844.8%  Unlock4.5%
 Age 85 and over  Unlock2.1%1.9%
 space1
 Race
 Key West, FLArlington, WAUnited States
 White58.9%  Unlock59.4%
 Black  Unlock1.6%12.2%
 Asian1.7%  Unlock5.6%
 Native American  Unlock0.7%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races2.1%  Unlock3.2%
 Hispanic  Unlock14.0%18.4%
 space2
 Marriage & Family
 Key West, FLArlington, WAUnited States
 Married Population45.1%  Unlock49.8%
     Currently Married  Unlock54.8%48.0%
 Married but Separated2.1%  Unlock1.8%
 Single Population  Unlock43.2%50.2%
 Never Married34.1%  Unlock33.8%
 Divorced  Unlock12.6%10.8%
 Widowed4.8%  Unlock5.6%
 space5
 Household Size  Unlock2.642.60
 Households11,002  Unlock124,010,992
 Family Households  Unlock5,16880,755,759
     Married couple, w/children23.7%  Unlock30.5%
     Married couple, no children  Unlock42.0%42.9%
 Non Family Households5,254  Unlock43,255,233
     Single householder, w/children  Unlock11.1%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 Arlington    4 Reviews
Jennifer  · Arlington, WA
Very high property tax
Over 9 years ago

Arlington is a nice area, however the property taxes are very high. We built a home here in 2015 . The home is similar to the one we lived in in Arlington's "twin" city  More

   |    Reply
Janice · Arlington, WA
A comfortable place to live
Over 17 years ago

Arlington is north of Seattle. Like the entire Greater Seattle area, the quality of life is easy going. The weather is generally gentle all year long. A little snow in  More

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Sissel · Arlington, WA
Something for everyone.
Over 17 years ago

We live on the West side of I-5, area known as Smokey Point/Lakewood/7 Lakes. As do several other family members. The area still has a very rural feeling without driving  More

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Learn More About Key West, Florida
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