United States Department of Agriculture
Natural Resources Conservation Service		 Ohio Go to Accessibility Information
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Ohio 14-digit Subwatersheds

Click inside of a county to show its subwatersheds or skip to text links below.

Link to Adams County map Link to Butler County map Link to Allen County map Link to Defiance County map Link to Henry County map Link to Hancock County map Link to Auglaize County map Link to Hardin County map Link to Clermont County map Link to Brown County map Link to Clinton County map Link to Champaign County map Link to Fayette County map Link to Crawford County map Link to Erie County map Link to Gallia County map Link to Ashland County map Link to Lorain County map Link to Belmont County map Link to Montgomery County map Link to Marion County map Link to Lawrence County map Link to Meigs County map Link to Monroe County map Link to Williams County map Link to Fulton County map Link to Lucas County map Link to Wood County map Link to Ottawa County map Link to Sandusky County map Link to Paulding County map Link to Putnam County map Link to Seneca County map Link to Van Wert County map Link to Mercer County map Link to Darke County map Link to Preble County map Link to Shelby County map Link to Miami County map Link to Warren County map Link to Hamilton County map Link to Highland County map Link to Greene County map Link to Clark County map Link to Logan County map Link to Wyandot County map Link to Huron County map Link to Union County map Link to Madison County map Link to Scioto County map Link to Pike County map Link to Ross County map Link to Pickaway County map Link to Franklin County map Link to Delaware County map Link to Morrow County map Link to Richland County map Link to Knox County map Link to Licking County map Link to Fairfield County map Link to Hocking County map Link to Vinton County map Link to Jackson County map Link to Athens County map Link to Perry County map Link to Morgan County map Link to Muskingum County map Link to Coshocton County map Link to Holmes County map Link to Medina County map Link to Wayne County map Link to Cuyahoga County map Link to Lake County map Link to Ashtabula County map Link to Geauga County map Link to Summit County map Link to Trumbull County map Link to Portage County map Link to Mahoning County map Link to Columbiana County map Link to Stark County map Link to Tuscarawas County map Link to Carroll County map Link to Jefferson County map Link to Harrison County map Link to Guernsey County map Link to Noble County map Link to Washington County map County map of Ohio linking to county subwatershed maps

Adams
Allen
Ashland
Ashtabula
Athens
Auglaize
Belmont
Brown
Butler
Carroll
Champaign
Clark
Clermont
Clinton
Columbiana
Coshocton
Crawford
Cuyahoga
Darke
Defiance
Delaware
Erie		 Fairfield
Fayette
Franklin
Fulton
Gallia
Geauga
Greene
Guernsey
Hamilton
Hancock
Hardin
Harrison
Henry
Highland
Hocking
Holmes
Huron
Jackson
Jefferson
Knox
Lake
Lawrence		 Licking
Logan
Lorain
Lucas
Madison
Mahoning
Marion
Medina
Meigs
Mercer
Miami
Monroe
Montgomery
Morgan
Morrow
Muskingum
Noble
Ottawa
Paulding
Perry
Pickaway
Pike		 Portage
Preble
Putnam
Richland
Ross
Sandusky
Scioto
Seneca
Shelby
Stark
Summit
Trumbull
Tuscarawas
Union
Van Wert
Vinton
Warren
Washington
Wayne
Williams
Wood
Wyandot