Arkansas water quality
Arkansas has 857 active public water systems (3,965 on file total), 660 of them graded by TapGraded.
Grade distribution
Biggest water systems
CENTRAL ARKANSAS WATER
LITTLE ROCK, AR · 368,455 served
FAYETTEVILLE WATERWORKS
FAYETTEVILLE, AR · 116,398 served
SPRINGDALE WATER UTILITIES
SPRINGDALE, AR · 98,948 served
FORT SMITH WATER UTILITIES
FORT SMITH, AR · 86,209 served
JONESBORO WATER SYSTEM
JONESBORO, AR · 81,888 served
ROGERS WATER UTILITIES
ROGERS, AR · 81,443 served
HOT SPRINGS UTILITIES
HOT SPRINGS, AR · 75,343 served
CONWAY WATER SYSTEM
CONWAY, AR · 64,008 served
BENTONVILLE WATER UTILITIES
BENTONVILLE, AR · 51,250 served
TEXARKANA WATER UTILITIES
TEXARKANA, AR · 50,815 served
Lowest-graded systems
Active, graded systems serving at least 10,000 people, ordered by lowest Tap Grade first.
MARION WATERWORKS
MARION, AR · 13,032 served
WARD WATERWORKS
WARD, AR · 12,579 served
EL DORADO WATERWORKS
EL DORADO, AR · 17,932 served
COMMUNITY WATER SYSTEM
GREERS FERRY, AR · 18,628 served
SALEM WATER USERS LLC
BENTON, AR · 22,775 served
SILOAM SPRINGS WATERWORKS
SILOAM SPRINGS, AR · 21,430 served
CITY CORPORATION
RUSSELLVILLE, AR · 29,260 served
TRI-COUNTY WATER DISTBR DIST
RUSSELVILLE, AR · 20,394 served
HARRISON WATERWORKS
HARRISON, AR · 17,455 served
SW WHITE COUNTY WATER ASSN
SEARCY, AR · 12,173 served
Cities in Arkansas
Source: EPA SDWIS/ECHO · Data as of 2026Q2