Florida Sinkhole Map & Checker
Sinkholes and other subsidence reported to the Florida Geological Survey near a Florida town: how many, how recent, how big.
Tampa · within 5 mi · 30 reported
30 reported sinkholes or subsidence incidents within 5 miles of Tampa, since 19675 were first seen in the last 10 years; the nearest is 1.3 miles away (1985). None is listed by the FGS as a confirmed true sinkhole; most were never checked.
- Hillsborough County: 615 reports, 1st of the 59 counties with any.
- The longest inside the circle: about 25 ft across (1975), 3.6 miles away.
- The deepest: about 30 ft (1987).
- 6 of the 30 reports say a structure was damaged.
The nearest reports (distance · year first seen · size)
- 1.3 mi · 1985
- 1.4 mi · 1989 · ~2 ft across, ~5 ft deep
- 1.7 mi · 2025 · ~4 ft across, ~4 ft deep · not a sinkhole (FGS)
- 1.8 mi · 1991 · ~5 ft across, ~3 ft deep
- 1.8 mi · 2024
- 1.9 mi · 2016
- 2.2 mi · 2010
- 2.4 mi · 1991 · ~6 ft across, ~3 ft deep
Florida Geological Survey, Subsidence Incident Reports (FDEP open data), read 2026-10-03: 4457 reports, the newest first seen 2026-09-16. A report is not a verdict on a home: most were never checked by a geologist.
Reports within 5 miles, by the decade first seen
| 1960s | 1 |
|---|---|
| 1970s | 6 |
| 1980s | 6 |
| 1990s | 2 |
| 2000s | 1 |
| 2010s | 8 |
| 2020s | 5 |
| No year | 1 |
Every report in Florida, and your circle
Quick answer: Most of Florida’s reported sinkholes are in the west-central counties. Hillsborough (615 reports), Marion (484), Citrus (447), Pasco (344) and Hernando (314) lead the Florida Geological Survey’s 4,457 subsidence incident reports. Pick a town to count the reports within 1 to 25 miles of it. Most were never checked by a geologist.
How to use it
Pick a Florida town, or tap Use my location, and how wide a circle to look in. The answer counts the reports inside the circle, says how many were first seen in the last 10 years and how far away the nearest is. Under it are the county’s own count and rank, the longest and deepest report nearby, the nearest eight, and the reports by decade. The map shows every report in the state as a dot, with your circle on it.
What a report is, and what it is not
The Florida Geological Survey keeps these reports and says plainly what they are: While this data may include some true sinkholes, the majority of the incidents have not been field-checked and the cause of subsidence is not verified.
A dip in a yard can come from a broken pipe, buried debris or soil that was never compacted. Of the 4,433 reports with a location, the FGS lists 103 as true sinkholes and 108 as not sinkholes; the rest are not known. So the count near a town shows where ground has given way before. It is not a verdict on any one home, and the map rounds every report to about 100 meters.
The counties with the most reports
| County | Reports |
|---|---|
| Hillsborough | 615 |
| Marion | 484 |
| Citrus | 447 |
| Pasco | 344 |
| Hernando | 314 |
| Polk | 304 |
| Orange | 232 |
| Suwannee | 211 |
Those eight counties hold about two thirds of every report in the state. Miami-Dade has 4 and Monroe, the Keys, 1.
Worked examples
Ocala, within 5 miles. 195 reports since 1974, 72 of them first seen in the last 10 years: Marion County is second in the state.
Spring Hill, within 2 miles. 76 reports, and 15 of them are listed by the FGS as true sinkholes.
Orlando, within 5 miles. 42 reports since 1961, the nearest 0.1 miles from the city’s center point, from 2024.
Miami, within 5 miles. None: the nearest report is 12 miles away, and all of Miami-Dade County has 4.
If you own or are buying a home
Florida law sets what your insurance covers. Every insurer must provide coverage for a catastrophic ground cover collapse
, and shall make available, for an appropriate additional premium, coverage for sinkhole losses
(Fla. Stat. § 627.706). Ask your insurer which of the two your policy has. Read more in whether sinkhole insurance is worth it in Florida.
Common mistakes
- Reading a dot as a sinkhole. Most reports were never field-checked, the FGS says.
- Reading an empty circle as “no risk”. It means nobody reported anything there; the ground underneath is a separate question.
- Judging a town by its county’s total. A 2-mile circle around the town tells you more.
More on Florida’s sinkholes
Read why Florida has so many sinkholes, where Florida’s sinkhole alley is, how likely sinkholes are in Florida and which part of Florida has the fewest. Moving to Florida? Compare places with the Cost of Living Comparison and their storms with the Hurricane Risk Calculator.
FAQ
Is there a Florida sinkhole map?
Yes: the Florida Geological Survey publishes its subsidence incident reports as open data, and this page maps all 4,433 that have a location. The FGS says most were never field-checked.
Where are sinkholes in Florida?
Mostly in the west-central counties: Hillsborough, Marion, Citrus, Pasco and Hernando have the most reports, then Polk, Orange and Suwannee. South Florida has very few.
Where is Florida’s sinkhole alley?
The name usually means the counties north of Tampa: Hillsborough, Pasco, Hernando and Citrus. Four of the five counties with the most reports are there.
How common are sinkholes in Florida?
The FGS has 4,457 subsidence incident reports. In the last 10 years, 655 were first seen. It lists 103 as true sinkholes; most were never checked.
Are there sinkholes near me?
Tap Use my location, pick 1 to 25 miles, and the tool counts the reports inside that circle and shows the nearest eight.
What county in Florida has the most sinkholes?
Hillsborough, with 615 reports, then Marion with 484 and Citrus with 447.