waterbycounty

Arkansas Water Quality

Drinking water data for all 75 counties.

Avg Water Score

47.6

State Grade

D

Counties with Data

75

of 75 total

All Arkansas Counties

CountyWater Score
Bradley County86.0
Calhoun County86.0
Clay County86.0
Cleburne County86.0
Cleveland County86.0
Conway County86.0
Craighead County86.0
Dallas County86.0
Garland County86.0
Grant County86.0
Greene County86.0
Hot Spring County86.0
Independence County86.0
Izard County86.0
Jefferson County86.0
Johnson County86.0
Lincoln County86.0
Madison County86.0
Perry County86.0
Pope County86.0
Pulaski County86.0
Randolph County86.0
Saline County86.0
Scott County86.0
Sevier County86.0
Sharp County86.0
St. Francis County86.0
White County86.0
Woodruff County86.0
Poinsett County64.1
Washington County55.4
Clark County51.8
Lawrence County46.1
Faulkner County44.3
Benton County40.3
Crittenden County40.2
Lonoke County39.8
Crawford County38.8
Cross County38.0
Drew County37.0
Stone County33.4
Boone County32.8
Ouachita County31.2
Baxter County30.8
Miller County30.7
Jackson County28.6
Sebastian County26.5
Van Buren County25.2
Franklin County25.1
Little River County23.8
Mississippi County23.5
Ashley County22.9
Howard County22.6
Logan County21.7
Union County17.3
Nevada County16.3
Polk County14.8
Marion County14.4
Arkansas County14.1
Carroll County12.9
Phillips County12.5
Columbia County11.3
Searcy County10.5
Monroe County9.9
Hempstead County9.3
Prairie County8.6
Chicot County8.4
Desha County8.1
Fulton County7.3
Pike County7.3
Lafayette County5.9
Yell County5.0
Newton County4.7
Lee County2.5
Montgomery County1.0

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Frequently Asked Questions

Which county in Arkansas has the best water quality?
Bradley County has the highest water quality score in Arkansas at 86.0/100 (Grade: A), based on EPA SDWIS data.
Which county in Arkansas has the most water violations?
Montgomery County has among the lowest water quality scores in Arkansas at 1.0/100. See the individual county page for detailed violation history.
Is the tap water safe to drink in Arkansas?
Arkansas has an average water quality score of 47.6/100 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 Arkansas 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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