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Browse Water Systems

16,271 public water systems in OH.

Public Water Systems Database

Browse 16,271 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

System Name PWSID State Type Population Served
CLEVELAND PUBLIC WATER SYSTEM OH1801212 Ohio Community 1,308,955
COLUMBUS PUBLIC WATER SYSTEM OH2504412 Ohio Community 1,305,946
CINCINNATI PUBLIC WATER SYSTEM OH3102612 Ohio Community 750,200
CINCINNATI, CITY OF-MILLER OH3100411 Ohio Community 686,400
COLUMBUS-HAP CREMEAN WTP OH2500421 Ohio Community 446,812
CLEVELAND,CITY OF-BALDWIN PLT. OH1800311 Ohio Community 424,027
TOLEDO CITY OF OH4801411 Ohio Community 360,000
CLEVELAND,CITY OF-MORGAN PLANT OH1800331 Ohio Community 352,888
COLUMBUS-DUBLIN ROAD WTP OH2500411 Ohio Community 331,072
CLEVELAND,CITY OF-NOTTINGHAM P OH1800341 Ohio Community 326,846
AKRON CITY PWS OH7700011 Ohio Community 280,000
DAYTON, CITY OF-OTTAWA PLANT OH5700722 Ohio Community 236,000
CLEVELAND,CITY OF-CROWN PLANT OH1800321 Ohio Community 198,665
DAYTON, CITY OF-MIAMI PLANT OH5700712 Ohio Community 184,000
MONTGOMERY COUNTY WATER SERVICES 1 PWS OH5701315 Ohio Community 150,207
MONTGOMERY CO:WATER SYSTEM # 1 OH5701303 Ohio Community 150,000
DEL-CO WATER COMPANY, INC. OH2101412 Ohio Community 150,000
DAYTON PUBLIC WATER SYSTEM OH5703512 Ohio Community 141,407
MONTGOMERY CO,GR.MORAINE-BV.CR OH5701312 Ohio Community 141,000
CLERMONT PUBLIC WATER SYSTEM OH1302212 Ohio Community 133,059
YOUNGSTOWN CITY PWS OH5002303 Ohio Community 130,530
COLUMBUS-PARSONS AVENUE WTP OH2500442 Ohio Community 119,329
BUTLER CO. WATER DISTRICT 2 PWS OH0900303 Ohio Community 116,572
CANTON PUBLIC WATER SYSTEM OH7608112 Ohio Community 107,113
AQUA OHIO - MASSILLON PWS OH7604512 Ohio Community 95,636
CINCINNATI, CITY OF-BOLTON PLT OH3100422 Ohio Community 93,600
MONTGOMERY COUNTY WATER SERVICES 2 PWS OH5701503 Ohio Community 83,033
LAKE COUNTY WEST WATER SUBDISTRICT OH4302411 Ohio Community 78,379
WARREN COUNTY OH8301512 Ohio Community 78,299
AQUA OHIO - MENTOR OH4301511 Ohio Community 74,500
RURAL LORAIN CO. WATER A OH4701803 Ohio Community 73,125
CANTON WATER DEPT-SUGARCREEK OH7601032 Ohio Community 70,000
ELYRIA WATER DEPARTMENT OH4700411 Ohio Community 68,000
LIMA CITY OH0200811 Ohio Community 65,619
LORAIN CITY PWS OH4700711 Ohio Community 64,152
CLERMONT COUNTY WATER, BMWTP OH1300431 Ohio Community 63,191
HAMILTON PUBLIC WATER SYSTEM OH0904012 Ohio Community 62,447
SPRINGFIELD CITY PWS OH1204412 Ohio Community 60,680
ZOAR INFORMATION CENTER OH7942412 Ohio Transient Non-Community 60,000
OH.WATER SER.CO.,MASSILLON OH7604511 Ohio Community 60,000
AQUA OHIO - STRUTHERS OH5001611 Ohio Community 58,551
SAN.ENGR,EASTLAKE WATER SUBDIS OH4302503 Ohio Community 58,500
FINDLAY CITY OH3200111 Ohio Community 54,040
HAMILTON/SOUTH WATER PLANT OH0901022 Ohio Community 52,920
MIDDLETOWN CITY PWS OH0901712 Ohio Community 51,229
CUYAHOGA FALLS CITY PWS OH7701012 Ohio Community 51,114
MANSFIELD CITY OH7002914 Ohio Community 51,000
LAKEWOOD CITY PWS OH1801003 Ohio Community 50,942
NEWARK CITY PWS OH4502314 Ohio Community 49,934
WARREN CITY PWS OH7803811 Ohio Community 49,130