Nassau County, Florida — public water systems
At a glance
53 active public water systems are filed under Nassau County, Florida in EPA's SDWIS records, together reporting 65,831 people served. The largest is Jea: Lofton Oaks Grid, which reports serving 24,318 people. 11 are community water systems serving people where they live; the other 42 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
53
Population served
65.8K
Community systems
11
Groundwater share
100%
How does Nassau County compare with other Florida counties?
Nassau County has the 29th-most active public water systems among the 138 counties listed for active Florida systems in EPA records; among the 71 with 3 or more systems, the median has 41. Its systems report 65,831 people served in total, the 38th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 1,242 people, well below the Florida average of 4,345. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Nassau County's drinking water come from?
By primary water source, Nassau County's active systems draw on groundwater (53, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 98% and 2.1% across Florida. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Jea: Lofton Oaks Grid, draws primarily on groundwater.
What kinds of water systems operate in Nassau County?
Nassau County's active systems break down as 11 community systems (21%), 5 non-transient non-community systems (9.4%) and 37 transient non-community systems (70%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (70%), local government (23%) and state government (7.5%).
The 50 largest water systems in Nassau County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Jea: Lofton Oaks Grid | Nassau | 24,318 | Community | Groundwater |
| 2 | Fernandina Beach WTP | Nassau | 21,925 | Community | Groundwater |
| 3 | Nassau-Amelia Utilities | Nassau | 9,750 | Community | Groundwater |
| 4 | Hilliard WTP | Nassau | 3,036 | Community | Groundwater |
| 5 | Callahan WTP | Nassau | 1,730 | Community | Groundwater |
| 6 | Fdot Welcome Center | Nassau | 1,001 | Transient non-community | Groundwater |
| 7 | Yulee Primary School | Nassau | 860 | Non-transient non-community | Groundwater |
| 8 | Callahan Intermediate School | Nassau | 700 | Non-transient non-community | Groundwater |
| 9 | Marsh Cove Condos | Nassau | 350 | Community | Groundwater |
| 10 | Bryceville Elementary School | Nassau | 249 | Non-transient non-community | Groundwater |
| 11 | White Oak Conservation | Nassau | 225 | Non-transient non-community | Groundwater |
| 12 | Down Under Restaurant | Nassau | 200 | Transient non-community | Groundwater |
| 13 | Dayspring Village | Nassau | 121 | Community | Groundwater |
| 14 | Ship Inn Motel | Nassau | 100 | Transient non-community | Groundwater |
| 15 | St. Mary'S River Fish Camp | Nassau | 100 | Transient non-community | Groundwater |
| 16 | Teakwood MHP | Nassau | 80 | Community | Groundwater |
| 17 | Dayspring Senior Living | Nassau | 64 | Community | Groundwater |
| 18 | Amelia Pines (Aka Duck Pond) | Nassau | 60 | Community | Groundwater |
| 19 | Bow ; Arrow Campground | Nassau | 60 | Transient non-community | Groundwater |
| 20 | Starting Point Behavioral Health | Nassau | 57 | Transient non-community | Groundwater |
| 21 | Horne Lake Rv Park | Nassau | 34 | Transient non-community | Groundwater |
| 22 | Oremc | Nassau | 30 | Transient non-community | Groundwater |
| 23 | Sandpiper MHP | Nassau | 30 | Community | Groundwater |
| 24 | Set Free Church | Nassau | 26 | Transient non-community | Groundwater |
| 25 | Dot I-95 Northbound Weigh-in-Motion | Nassau | 25 | Transient non-community | Groundwater |
| 26 | Dot I-95 Southbound Weigh-in-Motion | Nassau | 25 | Transient non-community | Groundwater |
| 27 | G ; A Food Store | Nassau | 25 | Transient non-community | Groundwater |
| 28 | Dollar General #18284 | Nassau | 25 | Transient non-community | Groundwater |
| 29 | Dollar General #19601 | Nassau | 25 | Transient non-community | Groundwater |
| 30 | Hilliard Public Works (Road ; Bridge) | Nassau | 25 | Transient non-community | Groundwater |
| 31 | O'Neal Memorial Baptist Church | Nassau | 25 | Transient non-community | Groundwater |
| 32 | Yulee County Building | Nassau | 25 | Transient non-community | Groundwater |
| 33 | Callahan Sports Complex | Nassau | 25 | Transient non-community | Groundwater |
| 34 | Bryceville Community Center | Nassau | 25 | Transient non-community | Groundwater |
| 35 | Kangaroo Express | Nassau | 25 | Transient non-community | Groundwater |
| 36 | Circle K #6056 | Nassau | 25 | Transient non-community | Groundwater |
| 37 | Circle K #6284 | Nassau | 25 | Transient non-community | Groundwater |
| 38 | Yulee Ball Park | Nassau | 25 | Transient non-community | Groundwater |
| 39 | New Life Baptist Church | Nassau | 25 | Transient non-community | Groundwater |
| 40 | Shuckers Oyster Bar | Nassau | 25 | Transient non-community | Groundwater |
| 41 | Circle K #6109 | Nassau | 25 | Transient non-community | Groundwater |
| 42 | Kelly'S Countryside Rv Park | Nassau | 25 | Transient non-community | Groundwater |
| 43 | Tropic Motel (Hedges Meat Market) | Nassau | 25 | Transient non-community | Groundwater |
| 44 | Amelia Island Marina | Nassau | 25 | Transient non-community | Groundwater |
| 45 | Yulee Community Education Center | Nassau | 25 | Non-transient non-community | Groundwater |
| 46 | Oak Hill Rv Resort | Nassau | 25 | Transient non-community | Groundwater |
| 47 | Dollar General #20355 | Nassau | 25 | Transient non-community | Groundwater |
| 48 | Ncso Training Center | Nassau | 25 | Transient non-community | Groundwater |
| 49 | Sunshine Food Mart #315 | Nassau | 25 | Transient non-community | Groundwater |
| 50 | American Beach Villas | Nassau | 25 | Transient non-community | Groundwater |
All other water systems in Nassau County (3)
The remaining active systems filed under Nassau County, largest first, with the population each reports serving.
Nassau County water systems: frequently asked questions
How many public water systems are in Nassau County, Florida?
EPA's SDWIS records file 53 active public water systems under Nassau County, Florida: 11 community systems (21%), 5 non-transient non-community systems (9.4%) and 37 transient non-community systems (70%).
Who supplies drinking water in Nassau County, FL?
The largest community water systems filed under Nassau County are Jea: Lofton Oaks Grid (24,318 people served), Fernandina Beach WTP (21,925 people served) and Nassau-Amelia Utilities (9,750 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Nassau County's drinking water come from groundwater or surface water?
Of the 53 active public water systems in Nassau County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Jea: Lofton Oaks Grid, uses groundwater.
Where can I find a water quality report for Nassau County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 11 community systems are filed under Nassau County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Nassau County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Florida water systems
- All Florida public water systems· 5,197 active
- Seminole County· 60 systems
- Martin County· 60 systems
- St. Johns County· 57 systems
- Broward County· 55 systems
- Manatee County· 52 systems
- Suwannee County· 49 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Nassau County, Florida”, https://aquacensus.com/water-systems/florida/nassau (data as of October 1, 2026).