Ohio regional directory
Ohio Metro and Regional Water Guides
Use regional hubs to navigate nearby city reports without assuming neighboring addresses share the same utility.
Regional research
Fifteen Ohio market and source-water regions
Each hub connects city pages, common provider patterns, source-water context and treatment questions. The current bill still controls the provider assignment.
12 city guidesColumbus and Central OhioColumbus, Franklin County suburbs, Delaware County and the expanding central Ohio utility network.5 city guidesLancaster and Central-Southeast OhioFairfield, Pickaway, Fayette and Ross County communities between the Columbus market and Appalachian Ohio.14 city guidesCleveland and Cuyahoga CountyLake Erie source-water communities and municipal distribution systems across Cuyahoga County.8 city guidesLorain and Western Lake ErieLorain, Erie, Sandusky and Ottawa County communities with direct or purchased Lake Erie supplies.5 city guidesLake and Ashtabula CountiesNortheast Ohio public systems and distribution districts from Mentor through Conneaut.11 city guidesAkron, Summit and Portage CountiesReservoir, municipal and purchased-water systems across Summit, Portage and western Medina County.7 city guidesCanton, Stark and Wayne CountiesGroundwater and municipal systems across Canton, Massillon, Alliance, Wooster and nearby communities.12 city guidesCincinnati and Southwest OhioOhio River, buried-valley aquifer and purchased-water systems across Hamilton, Butler, Clermont and Warren Counties.12 city guidesDayton and the Miami ValleyGroundwater and regional distribution systems across Montgomery, Greene, Warren and Miami Counties.8 city guidesToledo and Northwest OhioLake Erie and regional surface-water systems across Lucas, Wood, Hancock and Defiance Counties.6 city guidesYoungstown and the Mahoning ValleyMunicipal and regional water systems across Mahoning and Trumbull Counties.6 city guidesLima and West-Central OhioAllen, Clark, Shelby, Union, Auglaize and Logan County systems in west-central Ohio.4 city guidesMansfield and North-Central OhioRichland, Marion, Knox and Seneca County communities and their city or regional water systems.4 city guidesAthens, Marietta and Southeast OhioMunicipal and regional systems across Muskingum, Guernsey, Washington and Athens Counties.6 city guidesOhio River and Appalachian OhioOhio River communities and eastern Appalachian markets from Portsmouth to East Liverpool.