Key Colony Beach, FL housing market
The typical Key Colony Beach home is worth about $883,000, about the same as a year ago, 135% above the Florida typical home. Homes typically sell in 164 days, below asking.
Home values, sales, trends and how Key Colony Beach compares with the towns next door — updated as new data is published.
Key Colony Beach at a glance
A buyer's market
More homes are for sale than are selling — about 12 months of supply. Buyers have room to negotiate.
Typical home value, 2016–2026
Show as a table
| January | Key Colony Beach | Florida |
|---|---|---|
| 2017 | $555,000 | $209,000 |
| 2018 | $589,000 | $226,000 |
| 2019 | $590,000 | $242,000 |
| 2020 | $594,000 | $253,000 |
| 2021 | $650,000 | $276,000 |
| 2022 | $812,000 | $340,000 |
| 2023 | $950,000 | $392,000 |
| 2024 | $973,000 | $402,000 |
| 2025 | $936,000 | $397,000 |
| 2026 | $867,000 | $377,000 |
| August 2026 | $883,000 | $376,000 |
6 new homes permitted in 2025
Builders were permitted 6 new homes in Key Colony Beach in 2025, all single-family houses, worth about $4 million to build. Over the past 10 years, Key Colony Beach has permitted 49 homes in all.
Homes vs. people, 2010–2020
Between the 2010 and 2020 censuses, Key Colony Beach's population fell by 7 even though 55 new homes were permitted. Homes are holding fewer people: households are getting smaller, or more homes are used part of the year. 52% of Key Colony Beach's homes are seasonal or vacation homes, which adds housing without adding residents. Across Florida: 2.8 new residents per new home.
Residents: U.S. Census Bureau, 2010 and 2020 censuses. New homes: permits issued 2010–2019.
Show as a table
| Year | New homes | Single-family | 2+ per building | Value |
|---|---|---|---|---|
| 2026 (Jan–Aug) | 2 | 2 | 0 | $2.4 million |
| 2025 | 6 | 6 | 0 | $4 million |
| 2024 | 0 | 0 | 0 | — |
| 2023 | 1 | 1 | 0 | $500,000 |
| 2022 | 1 | 1 | 0 | $1.3 million |
| 2021 | 7 | 5 | 2 | $8.1 million |
| 2020 | 1 | 1 | 0 | $850,000 |
| 2019 | 11 | 5 | 6 | $4.3 million |
| 2018 | 11 | 9 | 2 | $5.1 million |
| 2017 | 6 | 6 | 0 | $3.8 million |
| 2016 | 5 | 5 | 0 | $2.8 million |
| 2015 | 1 | 1 | 0 | $600,000 |
| 2014 | 5 | 5 | 0 | $3 million |
| 2013 | 12 | 12 | 0 | $7.1 million |
| 2012 | 2 | 2 | 0 | $1.1 million |
| 2011 | 1 | 1 | 0 | $650,000 |
| 2010 | 1 | 1 | 0 | $475,000 |
| 2009 | 0 | 0 | 0 | — |
| 2008 | 4 | 4 | 0 | $3.2 million |
| 2007 | 2 | 2 | 0 | $815,000 |
| 2006 | 13 | 8 | 5 | $7.9 million |
| 2005 | 27 | 25 | 2 | $9.6 million |
| 2004 | 16 | 11 | 5 | $8.4 million |
| 2003 | 23 | 21 | 2 | $12.5 million |
| 2002 | 19 | 12 | 7 | $3.9 million |
| 2001 | 25 | 23 | 2 | $6.9 million |
| 2000 | 22 | 22 | 0 | $3.8 million |
Homes authorized by building permits, counted in the year the permit was issued. U.S. Census Bureau, Building Permits Survey, through August 2026.
Key Colony Beach and its neighbors
| Town | Typical value | 1-yr change | 2-bed rent | New homes 2025 | Median income |
|---|---|---|---|---|---|
| Key Colony Beach | $883K | +0.3% | $2,230 | 6 | $94,231 |
| Marathon | $833K | +1.1% | $2,050 | 35 | $89,355 |
Owners, rent & taxes
U.S. Census Bureau, ACS 2020-2024 · figures for a place this size carry wide margins of error.
A two-bedroom rents for about $2,230
HUD's Fair Market Rent for a two-bedroom in Key Colony Beach is $2,230 a month, utilities included: roughly what a modest, recently rented unit costs. Renters already in Key Colony Beach pay a median of $1,929, so moving in tends to cost more than staying put.
Studio $1,540 · 4 bedrooms $3,010
U.S. Department of Housing and Urban Development, FY2026 Fair Market Rents by ZIP code (33051; Monroe County, FL), weighted by land area. A Fair Market Rent is the 40th-percentile rent plus utilities for a standard unit. Median rent: U.S. Census Bureau, American Community Survey.
Recent listings in Key Colony Beach
Home values: Zillow Home Value Index (ZHVI), Zillow Research, August 2026. Sales, days on market and supply: Redfin Data Center, May 2026. Income, ownership, taxes and rent: U.S. Census Bureau, American Community Survey. New homes: U.S. Census Bureau, Building Permits Survey. Fair Market Rents: U.S. Department of Housing and Urban Development. Listings link to their publishers.