Housing data for Key Colony Beach, FL

Key Colony Beach, FL has an estimated 511 residents and 1,105 homes (US Census Bureau, 2020–2024 American Community Survey).

It is a city in Monroe County.

31.9% of households rent.

The median gross rent is $1,929 a month.

Figures last updated on .

Residents
511 (±179)
Housing units
1,105 (±142)
Households that rent
31.9%
Median gross rent
$1,929
Residents since 2015–2019
−4.3%

What stands out in Key Colony Beach

Rental vacancy rate: 60.8% (±12.4 points) in Key Colony Beach, higher than in Monroe County (19.6%).

Average commute: 10.0 minutes (±1.8) in Key Colony Beach, lower than in Monroe County (19.5 minutes).

Housing in Key Colony Beach at a glance

  • Median rent: $1,929 median gross rent a month (Small sample: wide margin of error)
  • Rent by bedrooms: $2,513 median gross rent, 2 bedrooms (Small sample: wide margin of error)
  • Rent burden: 64.5% of renters pay 30% or more of income (Small sample: wide margin of error)
  • Renters and owners: 31.9% of households rent (Small sample: wide margin of error)
  • Income and affordability: $94,231 median household income
  • Home values: $919,800 median home value (Small sample: wide margin of error)
  • Homeowner costs: $3,364 median monthly cost with a mortgage
  • Property taxes: $5,640 median real estate taxes a year (Small sample: wide margin of error)
  • Types of homes: 19.5% of homes are in buildings of 5 or more units
  • Bedrooms: 50.6% of homes have 3 or more bedrooms
  • Age of homes: 39.9% of homes were built before 1980
  • Vacancy rate: 60.8% rental vacancy rate (Small sample: wide margin of error)
  • Heating fuel: 100.0% heat with electricity
  • Commute and cars: 10.0 minutes average trip to work
  • Growth: −4.3% residents since 2015–2019 (Small sample: wide margin of error)
  • How long people stay: 30.1% moved in since 2020 (Small sample: wide margin of error)
  • Crowding and facilities: 2.8% of homes have more than 1 person per room (Small sample: wide margin of error)

Key Colony Beach against Monroe County, its state and the nation

Estimate (90% margin of error)
Key Colony BeachMonroe CountyFloridaUnited States
Residents511 (±179)81,860 (exact)22,416,077 (exact)334,922,499
Housing units1,105 (±142)54,834 (±47)10,256,470 (±942)143,775,355
Households that rent31.9% (±17.2 points)34.2% (±1.7 points)32.4% (±0.2 points)34.8%
Median gross rent$1,929 (±$232)$1,999 (±$108)$1,669 (±$5)$1,413
Median household income$94,231 (±$44,176)$87,738 (±$4,111)$74,568 (±$284)$80,734
Median home value$919,800 (±$493,732)$780,600 (±$26,820)$359,000 (±$930)$332,700
Median real estate taxes (a year)$5,640 (±$2,884)$4,129 (±$172)$2,730 (±$10)$3,119
Built before 198039.9% (±9.7 points)45.6% (±1.9 points)33.9% (±0.2 points)49.7%
Average commute10.0 minutes (±1.8)19.5 minutes (±0.9)28.0 minutes (±0.1)26.4 minutes
Households with broadband95.4% (±7.7 points)89.9% (±1.6 points)91.6% (±0.1 points)91.0%
Median age of residents66.5 years (±4.2)49.2 years (±0.2)42.6 years (±0.1)38.9 years

Key Colony Beach covers 0.4 square miles of land, about 1,161 residents per square mile (Census Bureau Gazetteer).

How Key Colony Beach has changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
2015–20192020–2024Amount of changeVerdict
Residents534 (±123)511 (±179)−4.3%Not a measurable change
Housing units1,366 (±105)1,105 (±142)−19.1%Measurable decrease
Median gross rent$1,211 (±$123)$1,929 (±$232)+59.3%Up after inflation
Median home value$603,000 (±$78,148)$919,800 (±$493,732)+52.5%No measurable change after inflation
Median household income$100,192 (±$30,852)$94,231 (±$44,176)−5.9%No measurable change after inflation
Median owner cost with a mortgage$2,831 (±$586)$3,364 (±$1,432)+18.8%No measurable change after inflation
Median real estate taxes$4,369 (±$807)$5,640 (±$2,884)+29.1%No measurable change after inflation
Households that rent29.1% (±14.5 points)31.9% (±17.2 points)+2.8 percentage pointsNot a measurable change
Rental vacancy rate73.9% (±11.4 points)60.8% (±12.4 points)−13.1 percentage pointsNot a measurable change

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

Crime reported to police in Monroe County

Key Colony Beach has no police department of its own in the FBI’s figures, so this is the figure for Monroe County as a whole.

In 2025, the police departments that report for Monroe County recorded 250 violent and 827 property crimes per 100,000 residents.

A county-wide figure describes the whole county, not this place; crime varies from one community to the next.

ZIP codes in Key Colony Beach

ZIP Code Tabulation Areas that cover this place (2020–2024 estimates)
ZIP codeShare of the ZIP’s land in this placeResidentsMedian gross rentMedian home valueMedian household income
33051100%511$1,929$919,800$94,231

A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.

Places near Key Colony Beach

Nearest places with Census figures, by straight-line distance
PlaceDistanceMedian gross rentMedian home valueHouseholds that rent
Marathon0.7 mi$1,633$725,80039.8%
Layton15 mi$1,833$842,40028.1%
Big Pine Key22 mi$1,724$637,00011.7%
Cudjoe Key30 mi$1,864$857,40020.8%
Islamorada35 mi$1,882$919,60015.5%
Tavernier39 mi$1,966$613,70019.8%
Big Coppitt Key41 mi$2,420$534,50037.1%
Stock Island46 mi$2,013$517,50072.4%

Places in Florida most like Key Colony Beach

PlaceMedian gross rentMedian home valueMedian household incomeHouseholds that rent
Marathon$1,633$725,800$89,35539.8%
Key West$2,220$852,400$87,03750.8%
South Sarasota$1,693$780,200$92,93323.6%
Naples Park$2,233$690,900$80,03937.4%
Winter Park$1,738$731,400$105,72433.8%
Laguna Beach$1,266$438,100$76,60727.0%

Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Florida.

HUD Fair Market Rent for Key Colony Beach, fiscal year 2027

Monroe County, FL, dollars a month
Studio1 bedroom2 bedrooms3 bedrooms4 bedrooms
$1,554$1,990$2,254$2,973$2,984

HUD income limits for Key Colony Beach, fiscal year 2026

Monroe County, FL, annual household income
Household sizeExtremely low (30%)Very low (50%)Low (80%)
1 person$30,100$50,200$80,300
2 people$34,400$57,300$91,700
3 people$38,700$64,500$103,200
4 people$43,000$71,650$114,650
5 people$46,450$77,350$123,850
6 people$49,900$83,100$133,000
7 people$53,350$88,850$142,200
8 people$56,800$94,600$151,350

These are the limits HUD sets for its housing programs in the Monroe County, FL, where HUD’s median family income for fiscal year 2026 is $129,600.

A program can use its own limits; tax-credit and local programs often do.

Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Key Colony Beach

What is the median household income in Key Colony Beach?

The median household income in Key Colony Beach is $94,231 (±$44,176) a year (2020–2024 American Community Survey).

What is the average mortgage payment in Key Colony Beach?

The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Key Colony Beach, FL is $3,364 (±$1,432) a month, including taxes, insurance and utilities.

How many homes are in Key Colony Beach?

Key Colony Beach, FL has an estimated 1,105 (±142) housing units, occupied and vacant (2020–2024 American Community Survey).

What is the most common home size in Key Colony Beach?

The most common size is 2 bedrooms, 42.8% of homes in Key Colony Beach, FL.

How old are most homes in Key Colony Beach?

39.9% of homes in Key Colony Beach, FL were built before 1980 (2020–2024 American Community Survey).

What is the most common way to heat a home in Key Colony Beach?

Electricity is the most common heating fuel in Key Colony Beach, used by 100.0% of occupied homes (2020–2024 American Community Survey).

Is Key Colony Beach growing?

In Key Colony Beach, the number of residents went from 534 in 2015–2019 to 511 in 2020–2024 (−4.3%), not a measurable change.

What ZIP codes are in Key Colony Beach?

The ZIP code that covers Key Colony Beach is 33051.

What is the median rent in ZIP code 33051?

The median gross rent in ZIP Code Tabulation Area 33051 is $1,929 (±$232) a month (2020–2024 American Community Survey).

Sources

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Key Colony Beach city, Florida (place:36325, in state:12).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.

Figures last updated on .

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