Home › Florida › Well Depth by County
How Deep Are Wells in Florida? Real Depth Data by County
"How deep will my well need to be?" is one of the hardest well-drilling questions to answer in the abstract, because it depends entirely on local geology. Florida publishes its driller's completion reports as open data, so instead of a national average, here is what 30,659 actual residential wells drilled since 2011 report for depth, broken down by county.
Source and method: St. Johns River Water Management District water well completion reports (delegated counties), extracted 2026-07-14. Figures include only wells recorded as residential (domestic) use, completed 2011 or later, with a reported depth between 15 and 2,000 ft (to exclude likely data-entry errors). A county is shown only if it has at least 5 qualifying reports. The depth shown is the reported current (total) well depth. This dataset is the St. Johns River Water Management District's completion reports for its delegated counties, so it covers northeast and central Florida counties rather than all 67 counties statewide; counties served by Florida's other water management districts are not included. Locations and figures are geocoded from hand-written reports and the District warns they carry transcription and driller-entry errors. These are figures self-reported by licensed drillers to the state; neither the St. Johns River Water Management District nor this site independently verifies them. Treat this as a planning reference, not a guarantee for any specific property, your own site could sit well outside your county's typical range.
Median well depth by county
"Typical range" is the 10th-to-90th-percentile band, i.e. where 80% of reported wells in that county fell. Counties with fewer than 5 qualifying reports since 2011 are omitted rather than shown with a misleading precise figure.
| County | Median depth | Typical range (10th-90th pct) | Reports used |
|---|---|---|---|
| Alachua | 100 ft | 43-180 ft | 46 |
| Baker | 140 ft | 100-220 ft | 543 |
| Brevard | 80 ft | 60-120 ft | 7,400 |
| Clay | 250 ft | 80-500 ft | 2,402 |
| Duval | 110 ft | 80-500 ft | 2,986 |
| Flagler | 100 ft | 60-150 ft | 542 |
| Indian River | 90 ft | 65-100 ft | 1,353 |
| Lake | 150 ft | 100-220 ft | 2,947 |
| Marion | 120 ft | 80-200 ft | 1,376 |
| Nassau | 100 ft | 100-300 ft | 1,805 |
| Orange | 150 ft | 100-200 ft | 1,288 |
| Osceola | 250 ft | 100-360 ft | 934 |
| Polk | 240 ft | 100-360 ft | 182 |
| Putnam | 180 ft | 100-260 ft | 3,114 |
| Seminole | 135 ft | 100-200 ft | 67 |
| St. Johns | 300 ft | 70-420 ft | 22 |
| Volusia | 150 ft | 110-180 ft | 3,652 |
How to use this table
Find your county, then use the median and typical-range figures as a starting point when budgeting with the well drilling cost estimator or reading the cost guide. A driller working in your county day-to-day will still know more about your specific property than a county-wide figure can, ask them how your site compares to the county's typical range, and why, before you commit to a per-foot quote with no depth ceiling.
We build these tables state by state from each state's public completion-report data. See also our Texas well depth by county page.
Ready to get quotes for your property?
Tell us about your project and we'll pass your details to a well driller serving your area in Florida.
Request a QuoteOr browse well drilling companies in Florida.