County
How deep are wells in Nassau County?
Household (domestic) wells in Nassau County have a median reported depth of 100 ft. The middle half are between 80 ft and 125 ft, based on 7,428 SJRWMD records.
Typical household well
Reported total depth, feet below ground
Depth by well type
Household wells are the headline because that’s what most people planning a well need. Irrigation wells are often much shallower.
| Well type | Wells | Median | Middle half |
|---|---|---|---|
| Household (headline figure) | 7,428 | 100 ft | 80–125 ft |
| Irrigation | 979 | 100 ft | 78–295 ft |
| Public supply | 123 | 135 ft | 86–590 ft |
| All water-supply | 8,540 | 100 ft | 80–140 ft |
How depths are spread
Household (domestic) wells: number of wells per depth band (ft)
Show as table
| Depth | Wells |
|---|---|
| 0–50 ft | 381 |
| 50–100 ft | 2,904 |
| 100–150 ft | 2,496 |
| 150–200 ft | 124 |
| 200–250 ft | 189 |
| 250–300 ft | 235 |
| 300–350 ft | 396 |
| 350–400 ft | 4 |
| 400–450 ft | 17 |
| 450–500 ft | 60 |
| 500–550 ft | 166 |
| 550–600 ft | 148 |
| 600 ft or deeper | 308 |
Look up wells near a specific address
Area figures blend very different places. For the wells closest to a property, with links to each original record, search an address.
By ZIP code
| Area | Water-supply wells | Median depth |
|---|---|---|
| 32011 | 3,087 | 80 fthousehold |
| 32034 | 1,662 | 100 fthousehold |
| 32097 | 1,552 | 100 fthousehold |
| 32046 | 1,491 | 115 fthousehold |
| 32234 | 832 | 120 fthousehold |
| 32009 | 714 | 100 fthousehold |
“Household” medians use domestic wells; “all supply” is used where household wells are too few. Areas with fewer than 30 water-supply wells are listed without a page.
By town or community
| Area | Water-supply wells | Median depth |
|---|---|---|
| Yulee | 1,089 | 100 fthousehold |
| Nassau Village-Ratliff | 630 | 60 fthousehold |
| Fernandina Beach | 157 | 110 fthousehold |
| Hilliard | 89 | 115 fthousehold |
| Callahan | 66 | 60 fthousehold |
“Household” medians use domestic wells; “all supply” is used where household wells are too few. Areas with fewer than 30 water-supply wells are listed without a page.
About these numbers
- Sources: St. Johns River Water Management District (10,677 records). Records were fetched October 25, 2026.
- What’s counted: wells with a reported depth whose use is household, irrigation, public supply or agricultural. Monitoring wells, injection wells, plugged wells and permits that were never drilled are left out. Methodology.
- Dates: the source layer for this area publishes no construction or permit date, so we can’t say how recent these wells are.
- Approximate locations: 5,287 of 10,677 records (50%) share their exact map point with at least four other records, so they’re probably placed at a section, subdivision or parcel-group center rather than at the well. That matters for “nearest well” distances, less for area figures like these.
- Not a guarantee: a record shows how deep one well was permitted or built. It doesn’t predict yield, water quality or what your well will need.
Questions
- How deep are wells in Nassau County?
- Household (domestic) wells in Nassau County have a median reported depth of 100 ft. The middle half are between 80 ft and 125 ft, based on 7,428 SJRWMD records.
- Will a new well at my property in Nassau County be this deep?
- Not necessarily. These are depths other wells were permitted or built to. Depth depends on the aquifer, water quality, use and local rules. A Florida-licensed water well contractor and your water management district can tell you what a new well at your property needs.
- Where does this data come from?
- From public well-construction records published by the St. Johns River Water Management District. Each well in the lookup links to its original agency record.