waterbycounty

Florida Water Quality

Drinking water data for all 67 counties.

Avg Water Score

56.0

State Grade

D

Counties with Data

66

of 67 total

All Florida Counties

CountyWater Score
Baker County86.0
Calhoun County86.0
Escambia County86.0
Gilchrist County86.0
Hamilton County86.0
Indian River County86.0
Jefferson County86.0
Lafayette County86.0
Santa Rosa County86.0
Sarasota County86.0
Union County86.0
Duval County71.8
Okaloosa County71.3
Clay County71.1
Hernando County70.8
Broward County70.6
Manatee County70.6
Miami-Dade County70.4
Walton County70.4
Leon County70.1
St. Johns County70.1
Alachua County69.3
Orange County68.8
Hillsborough County68.4
Pinellas County68.2
Pasco County67.3
Brevard County65.6
Palm Beach County64.5
Lee County64.2
Nassau County62.6
Volusia County61.2
Citrus County60.8
Hardee County59.9
Bradford County59.6
Suwannee County58.6
Gadsden County58.1
Martin County57.8
Marion County56.6
Collier County56.2
St. Lucie County56.1
Seminole County54.3
Okeechobee County52.7
Polk County50.8
Osceola County50.1
Bay County49.7
Charlotte County48.8
Dixie County47.1
Jackson County46.6
Flagler County46.2
Lake County45.2
Levy County35.8
Glades County35.5
Sumter County34.8
Holmes County31.1
Wakulla County30.1
Madison County28.1
Franklin County27.4
Highlands County25.8
Gulf County24.4
DeSoto County22.0
Liberty County17.3
Washington County14.5
Hendry County13.3
Taylor County11.8
Putnam County8.7
Columbia County6.0
Monroe County—

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Frequently Asked Questions

Which county in Florida has the best water quality?
Baker County has the highest water quality score in Florida at 86.0/100 (Grade: A), based on EPA SDWIS data.
Which county in Florida has the most water violations?
Columbia County has among the lowest water quality scores in Florida at 6.0/100. See the individual county page for detailed violation history.
Is the tap water safe to drink in Florida?
Florida has an average water quality score of 56.0/100 based on EPA Safe Drinking Water Act compliance data. Individual county scores vary — check your specific county's page for detailed information.
What contaminants are found in Florida water supplies?
Drinking water quality varies by county and water system. The EPA Safe Drinking Water Information System (SDWIS) tracks violations for contaminants like lead, nitrates, bacteria, and disinfection byproducts. See individual county pages for specific contaminant and violation history.

Data Source

Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

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