Cost of Living in Duck Key, FL

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F
146%
Overall NAT. AVG.
0%
Groceries NAT. AVG.
476%
Housing NAT. AVG.
Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.
The cost of living index is based on a national average of 100. For example, if the cost of living score is 90, then the estimated cost of living is 10% lower than the national average. If the score is 110, then the estimated cost of living is 10% higher than average. The overall index is calculated using weighted estimates across major everyday expense categories, including housing (30%), groceries (16%), transportation (12%), healthcare (10%), utilities (8%), lifestyle and entertainment (8%), household expenses (8%), and education and childcare (8%). All values are AI-assisted city-level estimates designed for directional comparisons.
Index Duck Key Florida National
Cost of living246102100
Groceries100102100
Health care103104100
Housing57697100
Transportation106103100
Utilities114110100
Lifestyle & Entertainment105104100
Household Items100102100
Education & Childcare110106100
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Homes For Sale In Duck Key, FL

property for sale

7005 Harbor Village Dr

Marathon, FL
property for sale

309 Jasmine St

Marathon, FL
property for sale

249 W Seaview Dr

Marathon, FL
property for sale

226 Corsair Rd

Marathon, FL

Cost Of Living Quick Facts

  • The cost of living in Duck Key is 142% higher than the Florida average
  • The cost of living in Duck Key is 146% higher than the national average
  • Duck Key housing is 476% higher than the national average
  • Florida general sales tax is 18% higher than the national average
  • Florida state income tax is 100% lower than the national average

Most Affordable Places to Live in and Around Duck Key

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Compare Duck Key, FL Cost of Living

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      Cost of living index
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      Housing index
      Transportation index
      Utilities index
      Lifestyle index
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      Educare index

      Median Income & Debt-To-Income Ratio

      Median Income Per Year Per Month Max Budget (28% DTI) Max Budget (36% DTI)
      Owners$167,328$13,944$3,904$5,020
      Renters$0$0$0$0

      Florida Sales Tax

      State General Sales Tax With Max Surtax
      Florida 6% 7.5%

      Florida Income Tax

      State Income Tax (Low) Income Tax (High)
      Florida 0% 0%

      Nearby cities with low cost of living

      City Population Cost of Living Index National Avg.
      Layton, FL11013938.8%
      Marathon, FL8,93414747.0%
      Key Colony Beach, FL54315453.6%
      Duck Key, FL780246146.3%

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      City Population Cost of Living Index National Avg.
      Independence, CA78011413.8%
      Chevy Chase Section Five, MD780266166.0%
      Fostoria, MI7808614.2%
      Dover, MN780991.0%
      Roper, NC7808317.3%
      Duck Key, FL780246146.3%
      Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.
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