Cudjoe Key, FL Demographics

Population 101 · Census ACS 2020–24

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Cudjoe Key, FL map of median age by neighborhood
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Population and households in Cudjoe Key

Household size in Cudjoe Key

Household size, people per household
PeriodCudjoe KeyFloridaU.S.
2006–102.312.632.68
2010–142.392.732.73
2015–192.042.752.71
2020–242.262.632.65
Change−0.05+0.00−0.03
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Cudjoe Key is a place of small households, averaging 2.26 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Cudjoe Key

Median age, years
PeriodCudjoe KeyFloridaU.S.
2006–1047.640.837.7
2010–1447.342.038.6
2015–1960.243.039.6
2020–2461.243.540.1
Change+13.6+2.7+2.3
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Cudjoe Key skews older: half of its residents are older than 61.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 47.6, but in a place this small, survey estimates can swing a lot from one release to the next.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Cudjoe Key

Single-parent households, % of households
PeriodCudjoe KeyFloridaU.S.
2006–103.4%12.4%12.3%
2010–144.7%12.2%12.3%
2015–193.0%11.5%11.6%
2020–2410.2%11.4%11.6%
Change+6.8 pts−1.0 pts−0.6 pts
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Single-parent households are a bit less common in Cudjoe Key than nationally: 10.2%, against 11.6%.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Cudjoe Key

Renters in Cudjoe Key

Renters, % of occupied homes
PeriodCudjoe KeyFloridaU.S.
2006–1025.7%30.3%33.3%
2010–1423.3%33.9%35.6%
2015–1913.2%34.6%36.0%
2020–2429.3%32.4%34.8%
Change+3.6 pts+2.1 pts+1.5 pts
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Most households in Cudjoe Key own their homes; 29.3% rent, a little below the national share of 34.8%. Among homeowners, 73.4% have no mortgage at all, well above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Cudjoe Key

Vacant homes, % of all homes
PeriodCudjoe KeyFloridaU.S.
2006–1038.5%17.2%11.4%
2010–1445.8%17.6%11.4%
2015–1939.0%15.4%11.1%
2020–2443.3%12.5%9.6%
Change+4.8 pts−4.8 pts−1.8 pts
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Vacant homes make up 43.3% of the housing in Cudjoe Key, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Cudjoe Key

Age of homes, median year built
PeriodCudjoe KeyFloridaU.S.
2006–10198719841974
2010–14198819851975
2015–19198719861977
2020–24200119891980
Change+14+5+6
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Much of the housing in Cudjoe Key is relatively new: half of its homes were built after 2001, compared with 1980 for the U.S. as a whole.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Cudjoe Key

Rent, per month
PeriodCudjoe KeyFloridaU.S.
2006–10$1,197$1,092$965
2010–14$1,363$1,123$1,040
2015–19$2,563$1,323$1,213
2020–24$1,732$1,816$1,571
Change+$535+$724+$606
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The median renter in Cudjoe Key pays $1,732 a month for rent and utilities, above the national median of $1,571. The picture is much the same across Florida. The typical renter here spends 33.4% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Cudjoe Key

Bachelor's degrees in Cudjoe Key

Bachelor's degrees, % of adults 25+
PeriodCudjoe KeyFloridaU.S.
2006–1037.0%26.4%28.4%
2010–1438.9%27.0%29.6%
2015–1943.3%30.0%32.1%
2020–2440.6%34.6%35.6%
Change+3.6 pts+8.2 pts+7.2 pts
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About four in ten adults 25 and older in Cudjoe Key (40.6%) have a bachelor's degree or higher, a bit above the national share of 35.6%.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Cudjoe Key

High school graduates, % of adults 25+
PeriodCudjoe KeyFloridaU.S.
2006–1098.3%85.5%84.9%
2010–1488.8%86.5%86.1%
2015–1995.7%88.2%87.7%
2020–2498.7%90.0%89.3%
Change+0.4 pts+4.4 pts+4.3 pts
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Finishing high school is nearly universal in Cudjoe Key: 98.7% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Cudjoe Key

Unemployment, % of the labor force
PeriodCudjoe KeyFloridaU.S.
2006–100.0%8.9%8.1%
2010–1423.4%11.0%9.4%
2015–192.0%5.7%5.6%
2020–240.0%4.8%5.4%
Change±0.0 pts−4.1 pts−2.7 pts
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The survey found almost no one in Cudjoe Key out of work and looking, against 5.4% of the labor force nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Cudjoe Key compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Cudjoe Key2.2661.210.2%29.3%43.3%2001$1,73240.6%98.7%0.0%
Summerland Key2.3051.16.3%17.1%37.3%1991$2,21746.0%96.6%4.1%
Sugarloaf Shores2.3552.612.2%16.0%31.7%1992$2,27239.0%95.4%7.6%
Big Pine Key2.2551.87.7%11.7%37.2%1987$2,14231.2%97.4%2.1%
Rock Harbor2.2851.31.4%4.7%37.1%1986$2,32133.9%96.7%1.7%
Key West2.4046.28.2%50.0%21.4%1972$2,29137.9%92.1%2.4%
Marathon2.4546.86.1%39.5%39.9%1984$1,82534.0%90.8%3.9%
Key Colony Beach1.8868.84.6%25.0%66.0%1983$2,48838.8%97.3%0.0%
Long Key1.8065.30.9%24.9%74.4%1984$2,07540.9%97.9%10.7%
Layton1.8065.30.9%24.9%74.4%1984$2,07540.9%97.9%10.7%
Plantation Key2.2859.35.3%12.9%65.8%1983$1,73029.3%95.7%0.0%

All figures 2020–24.

Cities with similar populations: Willow Shade, KY · Buckhorn, CA · Brummitt, AR · Brentwood Lake, OH · Brassar, MI · Brainards, NJ · White City, MI · Boydville, GA · Booth, AL · Widecreek, KY

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Cudjoe Key. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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