Data release: 2026-10 (EPA SDWA 2026Q3 extract, Florida DEP 2018-2022, UCMR 3/4/5).
Data updated October 24, 2026Reviewed by Steve Saper, founder, on October 25, 2026
The Florida reports use 7 public sources: EPA SDWA, EPA UCMR, Florida DEP, EPA Water System Boundaries, Census ZCTA, Census ACS and published health guidelines. Each is listed below with who publishes it, what we use it for, the years it covers and the year we accessed it. EPA compliance records come from the July to September 2026 extract.
Every source
EPA Safe Drinking Water Act (SDWA) data, ECHO
Published by
U.S. Environmental Protection Agency
Used for
Utility details, populations served, purchased-water links, compliance and violations
Boundary vintage: EPA Water System Boundaries (CWS Service Area Boundaries) v3.0, Mar 2026; Census 2020 cartographic boundary ZCTA520 500k; accessed 2026-10-02.
Housing release: ACS 2024 5-year.
Service-area boundary data: license and credits
Service-area boundaries: EPA Community Water System Service Area Boundaries (v3), including data provided by states and utilities.
The service-area boundaries on our map come from EPA's Community Water System Service Area Boundaries (v3). EPA releases that data under the MIT License below.
Community Water System Service Area Boundaries, U.S. EPA Office of Research and Development. MIT License. Copyright (c) 2025 US EPA. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Source
Boundaries in this data set were also provided by these state and local government bodies:
U.S. EPA Region 8
Alaska Division of Community and Regional Affairs
Mississippi Public Service Commission
City of Dothan, Alabama
Opelika Water Works Board, Alabama
Public Water Systems (polygon), Arkansas GIS Office, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Boundaries simplified. Source
Arizona Department of Water Resources
Town of Queen Creek, Arizona
California State Water Resources Control Board, Division of Drinking Water
Syril Whitlock, Engineering Tech., City of Montrose
Newark, Delaware
Smyrna, Delaware
City of Apopka, Florida
City of Coral Springs, Florida
City of Leesburg, Florida
City of Dade City, Florida
Englewood Water District, Florida
FGUA, Florida
JEA, Florida
Lake County, Florida
MDWASA, Florida
Miami-Dade County, Florida
Miami-Dade Water and Sewer Department
Northwest Florida Water Management District
City of Oakland Park, Florida
Pasco County Utilities, Florida
Seminole County Utilities, Florida
South Florida Water Management District
St. Johns River Water Management District
St. Petersburg, Florida
Southwest Florida Water Management District
East Point, Georgia
City of Kalona, Iowa
Council Bluffs, Iowa
City of Dakota City, Iowa
City of Iowa City, Iowa
Marion County, Iowa
Norwalk, Iowa
Perry, Iowa
City of Prairie City, Iowa
Xenia Rural Water District, Iowa
City of Jerome, Idaho
Sandpoint, Idaho
Belvidere GIS
Carpentersville, Illinois
City of McHenry, Illinois
Greenville, Illinois
Montana State Library Geographic Information Services
TRI County RPC
Argos, Indiana
City of Mishawaka, Indiana
DeMotte, Indiana
Hebron, Indiana
Schererville, Indiana
Valparaiso, Indiana
Kansas State Government GIS
Auburn, Maine
Lewiston, Maine
Portland Water District, Maine
City of Mason, Michigan
Michigan Department of Environment, Great Lakes, and Energy
Grand Haven, Michigan
Oakland County, Michigan
KC Water, Missouri
Missouri DNR
NDGISDP-DWR, North Dakota
City of Richland, Mississippi
City of Ridgeland, Mississippi
Butte-Silver Bow, Montana
Flathead County, Montana
Gallatin County, Montana
Kalispell, Montana
Lake County, Montana
Lewis Clark GIS, Montana
Park County, Montana
Cape Fear Public Utility Authority, North Carolina
NC OneMap (2019). North Carolina Department of Information Technology, Government Data Analytics Center, Center for Geographic Information and Analysis. Available at www.nconemap.gov.
Statesville, North Carolina
State of North Dakota
City of Lincoln, Nebraska
New Mexico Office of the State Engineer
New York State
Warren County, New York
Auglaize GIS
City of Aurora, Ohio
City of Barberton, Ohio
Village of Georgetown, Ohio
Morgan County, Ohio
Stark County, Ohio
City of Wooster, Ohio
City of Edmond, Oklahoma
OWRB, Oklahoma
City of Astoria, Oregon
City of Central Point, Oregon
City of Bend, Oregon
City of Corvallis, Oregon
City of Keizer, Oregon
City of Troutdale, Oregon
Crook County, Oregon
City of Fairview, Oregon
City of Grants Pass, Oregon
City of Irrigon, Oregon
Jackson County, Oregon
City of Lebanon, Oregon
Marion County, Oregon
Polk County, Oregon
City of Roseburg, Oregon
Water Supply Districts (2022): Rhode Island Geographic Information System (RIGIS) and URI Environmental Data Center, RI Water Resources Board and RI Department of Health. Source
Electric City Utilities and the City of Anderson, South Carolina
Town of Lexington, South Carolina
Newberry County Water and Sewer Authority, South Carolina
York County, South Carolina
City of Yankton, South Dakota
Tennessee Department of Environment and Conservation
Texas Water Development Board
Utah Division of Water Rights, CC BY-SA (version not stated) Source Our simplified version of these Utah boundaries is offered under CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/).
Bedford County, Virginia
Town of Blacksburg, Virginia
Grayson County, Virginia
Prince William County, Virginia
Vermont Agency of Natural Resources
Mountain View-Edgewood Water Company wellhead protection program, Washington
City of Okanogan water system plan, Washington
Whispering Firs at Firetrail water system, Washington
Belfair Water District, Washington
Chelan County, Washington
Chelan County Public Utility District No. 1 water system plan, Washington
City of Chelan, Washington
City of Davenport water system plan, Washington
City of Lacey, Washington
City of Yakima, Washington
Clallam County, Washington
Clark County, Washington
Auburn Park Community water system, Washington
Washington State Department of Health
Franklin County, Washington
Grant County, Washington
Grays Harbor County, Washington
Olympic View Mobile Park water system, Washington
Jefferson County, Washington
King County, Washington
Kitsap County, Washington
Naval Base Kitsap water system plan, Washington
Kittitas County, Washington
Klickitat County, Washington
Lewis County, Washington
Lewis River Golf Course water system plan, Washington
Mason County, Washington
North Snohomish County, Washington
Pacific County, Washington
City of Yelm, Washington
Pend Oreille County, Washington
Huffman water system, Washington
Pierce County, Washington
Highlands Utility District water system plan, Washington
Clearwood water system plan, Washington
City of Oak Harbor, Washington
Grant County Public Utility District No. 2, Washington
San Juan County, Washington
Skagit County, Washington
Spokane Consolidated Water Systems, Washington
Spokane County, Washington
City of Colfax, Washington
Thurston County, Washington
Town of Pe Ell, Washington
Town of St. John, Washington
Walla Walla County, Washington
Whatcom County, Washington
Yakima County, Washington
Barneveld, Wisconsin
Biron, Wisconsin
Cottage Grove, Wisconsin
Frederic, Wisconsin
Hudson, Wisconsin
Ladysmith, Wisconsin
Randolph, Wisconsin
City of Ripon, Wisconsin
Wausau Water Works, Wisconsin
WVIJDC, West Virginia (service-area map by Thrasher)
WVIJDC, West Virginia
For water systems without a boundary we can show, the map draws an illustrative estimate: the Census city boundary for a city's own water system, or a marker at the center of the city or county the system serves. These estimates aren't service-area maps and aren't used to match ZIP codes to utilities. They are drawn only from Census and EPA system records, without using any provider's service-area boundary.
City and county boundaries: U.S. Census Bureau, Cartographic Boundary Files (generalized from TIGER/Line), 2020.
People-served figures subtract the people counted by water systems that buy water from another system, so the same people aren't counted twice. Figures are rounded and may undercount.
Where EPA's records list two 90th-percentile results for the same monitoring period, we show the higher one.
Our ZIP code matches also use service-area boundaries from:
State of South Dakota
Anchorage Water and Wastewater Utility, Alaska
Central Elmore Water and Sewer Authority, Alabama
Arizona Water Company
City of Aurora, Colorado
City and County of Broomfield, Colorado
City of Grand Junction, Colorado
City of Thornton, Colorado
Ute Conservancy District, Colorado
Connecticut Department of Public Health
Artesian Water Company
American States Utility Services, Inc.
American Water
Bartow County, Georgia
City of Gainesville Department of Water Resources, Georgia
Columbia County, Georgia
Douglas County, Georgia
Rockdale County Water System, Georgia
Fulton County, Georgia
Gwinnett County, Georgia
JCWSA, Georgia
Newton County, Georgia
Paulding County, Georgia
Rome, Georgia
Pitts and Seville, Georgia (service-area map by Sunbelt)
Walker County, Georgia
HDR
City of Ankeny, Iowa
City of Ames, Iowa
Rathbun Regional Water Association, Iowa
Star Sewer and Water District, Idaho
Algonquin, Illinois
Aqua
Aurora, Illinois
La Grange, Addison and Momence, Illinois (service-area map by Baxter Woodman)
Chicago Department of Water Management, Illinois
EJ Water Cooperative, Illinois
Round Lake Beach, Illinois (service-area map by GHA Engineers)
GIS Consortium, Illinois
Moultrie County Rural Water, Illinois
Peoria County, Illinois
Rockford, Illinois
North Park PWD, Illinois (service-area map by Sunbelt)
Elkhart Public Works and Utilities, Indiana (service-area map by Arcadis)
Citizens Energy Group, Indiana
Goshen Water Utility, Indiana (service-area map by DLZ Corporation)
Indiana Department of Environmental Management
City of Marion, Indiana
Watson Rural Water Company, Indiana
Consolidated Waterworks District No. 1 of Terrebonne Parish, Louisiana
Jefferson WW, Louisiana
St. Bernard Parish Waterworks, Louisiana
MassDEP, Water Utility Resilience Program. 2025. Community and Non-Transient Non-Community Public Water System Service Area (PubV2025_3).
MDE WSP, Maryland
Kennebunk, Kennebunkport Water District, Maine
City of Monroe, Michigan
Lincoln Park, Michigan (service-area map by Hennessey Engineers)
Independence Township, Michigan
Kalamazoo, Michigan
Rochester, Michigan
Blaine, Minnesota
Minnesota Department of Health
Jackson County, Missouri
Missouri State
St. Charles County, Missouri
Source: NJDEP Geographic Information System (GIS), Purveyor Service Areas of New Jersey. This page was developed using New Jersey Department of Environmental Protection Geographic Information System digital data, but this secondary product has not been verified by NJDEP and is not state-authorized or endorsed. Metadata
Truckee Meadows Water Authority, Nevada
City of Akron, Ohio
Butler County, Ohio
Canton, Ohio
Cincinnati, Ohio
Cleveland, Ohio
Del-Co Water Company, Ohio
Elyria, Ohio
Fairfield County, Ohio
Hamilton, Ohio
Lake County Department of Utilities, Ohio
City of Lima, Ohio
City of Lorain, Ohio
Ohio Environmental Protection Agency
City of Wadsworth, Ohio (service-area map by OHM Advisors)
Rural Lorain County Water Authority, Ohio
City of Springfield, Ohio
SWLCWS, Ohio
Tate-Monroe Water Association, Ohio
Warren County, Ohio
City of Pickerington, Ohio (service-area map by Woolpert)
City of Youngstown, Ohio
Broken Arrow, Oklahoma
City of Tulsa, Oklahoma
Regional Water Providers Consortium, Oregon
Contains information from RLIS, made available under the ODbL. License
Rockwood Water People's Utility District, Oregon
Rainbow Water District, Oregon
Willamette Water Supply Program, Oregon
Berkeley County, South Carolina
Charleston, South Carolina
City of Orangeburg Department of Public Works, South Carolina
Florence County, South Carolina
Hilton Head Island, South Carolina
Spartanburg Water, South Carolina
Jackson Water System, Tennessee
ACSA, Virginia
Arlington County, Virginia
City of Chesapeake, Virginia
City of Winchester, Virginia
JCSA, Virginia
Loudoun Water, Virginia
City of Newport News, Virginia
Stafford County, Virginia
Burlington, Vermont
Clallam County Coordinated Water System Plan, Washington
City of Port Townsend water system plan, Washington
Dallesport Water District water system plan, Washington
Malden water system plan, Washington
Glacier Springs Water Association, Washington (service-area map by Pioneer Surveying & Engineering)
Fox Crossing, Wisconsin
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