Key Colony Beach, Florida
5 topographic sheets cover this place, the earliest surveyed in 1971 and the latest in 1989. It stands in the Middle Keys census division. It lies in ZIP code area 33050. It lies near Crawl Key Number Two. The Survey maps it on the Marathon quadrangle. 790 people lived here at the 2020 count. It stands 3 feet above sea level.
Then and now
1971 to 1989The same ground, surveyed 18 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Population over time
2 figuresKey Colony Beach fell from 797 to 790 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 797 | |
| 2020 | 790 | -7 (-1%) |
Topographic sheets covering this place
4 surveys from 5 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1971 USGS Marathon quadrangle1:24000
- 1972 USGS Marathon quadrangle1:24000
- 1983 USGS Key West quadrangle1:100000, 2 printings
- 1989 USGS Key West quadrangle1:250000
Fires near this place
1 since 1996Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of Key Colony Beach in 1996, burning under an acre in total. None started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 24 December 1996 | Missing data/not specified/undetermined | under an acre | Florida Forest Service | not named |
Settlements close enough to share some of these fires:
Mines and quarries near this place
1 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 1 working within 5 miles of Key Colony Beach: 1 producer. All of them still produce. What was taken out: Stone, Crushed/Broken. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Grassy Key Pit | Stone, Crushed/Broken | Producer |
Storms near this place
5 since 2001Regional context, not property-specific evidence. The National Weather Service names Key Colony Beach in 5 storm reports between 2001 and 2016: 2 waterspout, 1 thunderstorm wind, 1 lightning, 1 tornado. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| June 2013 | Lightning | Key Colony Beach | $2,500 | Two lightning strikes occurred to the Bonefish Towers complex in the Coco Plum section of the city of Marathon. The first bolt was observed to strike a small grouping of palm trees, which were set on fire. The local fire department extinguished the fire. A second strike to the main rooftop dryer vent melted the aluminum framing around dryer lint screens on the 4th, 7th, 8th and 9th floors along the southeast corner of the condominum tower. Laundry rooms exist on all floors of the condominium except the 14th floor penthouse. |
| January 2016 | Tornado (EF0) | Key Colony Beach | $2,000 | A waterspout was observed as a condensation funnel cloud over a marine basin approximately 630 am EST north of Key Colony Beach and just west of the Coco Plum Drive causeway. The waterspout was observed crossing the causeway as a tornado at a seafood distribution business damaging a metal overhang. Tarps and canvas coverings on vessels docked in the adjacent marina were partially or completely removed, with a few torn. No structural damage to buildings or vessels was observed. The tornado exited the causeway as a waterspout and dissipated very shortly thereafter. |
| February 2009 | Thunderstorm Wind | Key Colony Beach | $1,500 | Wind damage due to a severe thunderstorm occurred at a restaurant on the Florida Bay side of the city of Marathon, just east of the causeway to Key Colony Beach. Large outdoor furniture, including restaurant tables, became airborne and overturned. Damage was reported to a tiki bar roof, with tree limbs broken on the property. Widespread pea to marble size hail was reported. |
| September 2001 | Waterspout | Key Colony Beach | - | Waterspout occurred 2 miles north of Key Colony Beach. |
| September 2001 | Waterspout | Key Colony Beach | - | Waterspout occurred 1 mile north of Key Colony Beach. |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Marathon Shores | 1.6 miles | 5 | |
| Valhalla | 2.6 miles | 3 | |
| Marathon | 3.8 miles | 5 | |
| Jolly Roger Travel Park | 4.8 miles | 4 | |
| Duck Key | 6.6 miles | 4 | |
| Conch Key | 8.4 miles | 4 | |
| Layton | 13.0 miles | 3 | |
| Craig (historical) | 16.0 miles | 3 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Key Colony Beach | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q993930 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 285076. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.



