The currently has 55 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 11 combined statistical areas, 15 metropolitan statistical areas, and 29 micropolitan statistical areas in Ohio. As of 2025, the largest of these is the Cleveland–Akron–Canton, OH CSA, comprising Cleveland and other cities in the northeast region of the state.
+The 55 United States statistical areas and 88 counties of the State of OhioCombined statistical area2025 population (est.)Core-based statistical area2025 population (est.)County2025 population (est.)Cleveland–Akron–Canton, OH CSA3,743,802Cleveland, OH MSA2,165,775Cuyahoga County, Ohio1,232,925Lorain County, Ohio323,219Lake County, Ohio232,217Medina County, Ohio185,025Ashtabula County, Ohio96,713Geauga County, Ohio95,676Akron, OH MSA701,780Summit County, Ohio538,376Portage County, Ohio163,404Canton–Massillon, OH MSA400,246Stark County, Ohio373,771Carroll County, Ohio26,475Wooster, OH μSA116,758Wayne County, Ohio116,758Sandusky, OH MSA112,777Erie County, Ohio73,296Ottawa County, Ohio39,481New Philadelphia–Dover, OH μSA92,373Tuscarawas County, Ohio92,373Fremont, OH μSA58,655Sandusky County, Ohio58,655Norwalk, OH μSA58,250Huron County, Ohio58,250Coshocton, OH μSA37,188Coshocton County, Ohio37,188Columbus–Marion–Zanesville, OH CSA2,681,018Columbus, OH MSA2,242,028Franklin County, Ohio1,361,536Delaware County, Ohio242,032Licking County, Ohio185,564Fairfield County, Ohio169,752Union County, Ohio73,446Pickaway County, Ohio62,978Madison County, Ohio46,985Morrow County, Ohio36,305Perry County, Ohio35,918Hocking County, Ohio27,512Zanesville, OH μSA87,014Muskingum County, Ohio87,014Chillicothe, OH μSA76,429Ross County, Ohio76,429Marion, OH μSA65,115Marion County, Ohio65,115Mount Vernon, OH μSA64,002Knox County, Ohio64,002Athens, OH μSA63,197Athens County, Ohio63,197Bellefontaine, OH μSA46,302Logan County, Ohio46,302Cambridge, OH μSA38,379Guernsey County, Ohio38,379Washington Court House, OH μSA28,552Fayette County, Ohio28,552Cincinnati–Wilmington, OH–KY–IN CSA2,355,1591,799,402 ()Cincinnati, OH-KY-IN MSA2,312,8581,757,101 (OH)Hamilton County, Ohio838,418Butler County, Ohio400,128Warren County, Ohio257,181Clermont County, Ohio216,977Kenton County, Kentucky175,779Boone County, Kentucky145,316Campbell County, Kentucky95,441Dearborn County, Indiana51,609Brown County, Ohio44,397Grant County, Kentucky26,181Franklin County, Indiana23,286Pendleton County, Kentucky14,800Gallatin County, Kentucky8,840Bracken County, Kentucky8,511Ohio County, Indiana5,994Wilmington, OH μSA42,301Clinton County, Ohio42,301Dayton–Springfield–Kettering, OH CSA1,100,299Dayton–Kettering–Beavercreek, OH MSA826,554Montgomery County, Ohio539,598Greene County, Ohio174,322Miami County, Ohio112,634Springfield, OH MSA135,340Clark County, Ohio135,340Greenville, OH μSA51,520Darke County, Ohio51,520Sidney, OH μSA48,065Shelby County, Ohio48,065Urbana, OH μSA38,820Champaign County, Ohio38,820noneToledo, OH MSA599,376Lucas County, Ohio423,347Wood County, Ohio134,176Fulton County, Ohio41,853Youngstown–Warren–Salem, OH CSA523,055Youngstown–Warren, OH MSA423,678Mahoning County, Ohio224,706Trumbull County, Ohio198,972Salem, OH μSA99,377Columbiana County, Ohio99,377Mansfield–Ashland–Bucyrus, OH CSA219,312Mansfield, OH MSA124,893Richland County, Ohio124,893Ashland, OH μSA52,523Ashland County, Ohio52,523Bucyrus, OH μSA41,896Crawford County, Ohio41,896Lima–Van Wert–Celina, OH CSA218,540Lima, OH MSA100,881Allen County, Ohio100,881Wapakoneta, OH μSA45,909Auglaize County, Ohio45,909Celina, OH μSA42,737Mercer County, Ohio42,737Van Wert, OH μSA29,013Van Wert County, Ohio29,013Findlay–Tiffin, OH CSA129,556Findlay, OH μSA75,034Hancock County, Ohio75,034Tiffin, OH μSA54,522Seneca County, Ohio54,522Charleston–Huntington–Ashland, WV-OH-KY CSA637,500127,075 (OH)Huntington–Ashland, WV-OH-KY MSA365,96555,710 (OH)Cabell County, West Virginia91,183Putnam County, West Virginia56,885Lawrence County, Ohio55,710Boyd County, Kentucky47,751Wayne County, West Virginia37,309Greenup County, Kentucky35,213Carter County, Kentucky26,149Lawrence County, Kentucky15,765Charleston, WV MSA200,170Kanawha County, West Virginia172,381Boone County, West Virginia20,251Clay County, West Virginia7,538Portsmouth, OH μSA71,365Scioto County, Ohio71,365noneWheeling, WV-OH MSA134,08964,434 (OH)Belmont County, Ohio64,434Ohio County, West Virginia40,496Marshall County, West Virginia29,159Pittsburgh–Weirton–Steubenville PA-OH-WV CSA2,725,19863,597 (OH)Pittsburgh, PA MSA2,421,992Allegheny County, Pennsylvania1,225,035Westmoreland County, Pennsylvania349,324Washington County, Pennsylvania210,802Butler County, Pennsylvania200,169Beaver County, Pennsylvania166,032Fayette County, Pennsylvania123,021Lawrence County, Pennsylvania83,911Armstrong County, Pennsylvania63,698Weirton–Steubenville, WV-OH MSA112,46863,597 (OH)Jefferson County, Ohio63,597Hancock County, West Virginia27,729Brooke County, West Virginia21,142Hermitage, PA μSA107,860Mercer County, Pennsylvania107,860Indiana, PA μSA82,878Indiana County, Pennsylvania82,878Parkersburg–Marietta–Vienna, WV-OH CSA145,65358,389 (OH)Parkersburg–Vienna, WV MSA87,264Wood County, West Virginia82,385Wirt County, West Virginia4,879Marietta, OH μSA58,389Washington County, Ohio58,389noneDefiance, OH μSA38,292Defiance County, Ohio38,292Gallipolis, OH μSA29,072Gallia County, Ohio29,072noneHolmes County, Ohio44,970Highland County, Ohio43,823Preble County, Ohio40,664Williams County, Ohio36,549Putnam County, Ohio34,380Jackson County, Ohio32,817Hardin County, Ohio30,072Adams County, Ohio27,865Henry County, Ohio27,598Pike County, Ohio27,061Meigs County, Ohio21,587Wyandot County, Ohio21,567Paulding County, Ohio18,727Noble County, Ohio14,276Harrison County, Ohio14,070Morgan County, Ohio13,626Monroe County, Ohio12,994Vinton County, Ohio12,645State of Ohio11,900,510
+The 44 core-based statistical areas of the State of Ohio2025 rankCore-based statistical areaPopulation2025 estimateChange2020 CensusChange2010 CensusColumbus, OH MSACleveland, OH MSACincinnati, OH-KY-IN MSA (OH)Dayton–Kettering–Beavercreek, OH MSAAkron, OH MSAToledo, OH MSAYoungstown–Warren, OH MSACanton–Massillon, OH MSASpringfield, OH MSAMansfield, OH MSAWooster, OH μSASandusky, OH MSALima, OH MSASalem, OH μSANew Philadelphia–Dover, OH μSAZanesville, OH μSAChillicothe, OH μSAFindlay, OH μSAPortsmouth, OH μSAMarion, OH μSAWheeling, WV-OH MSA (OH)Mount Vernon, OH μSAWeirton–Steubenville, WV-OH MSA (OH)Athens, OH μSAFremont, OH μSAMarietta, OH μSANorwalk, OH μSAHuntington–Ashland, WV-KY-OH MSA (OH)Tiffin, OH μSAAshland, OH μSAGreenville, OH μSASidney, OH μSABellefontaine, OH μSAWapakoneta, OH μSACelina, OH μSAWilmington, OH μSABucyrus, OH μSAUrbana, OH μSADefiance, OH μSACambridge, OH μSACoshocton, OH μSAGallipolis, OH μSAWashington Court House, OH μSAVan Wert, OH μSACincinnati, OH-KY-IN MSAHuntington–Ashland, WV-KY-OH MSAWeirton–Steubenville, WV-OH MSAWheeling, WV-OH MSA
+The 11 combined statistical area of the State of Ohio2025 rankCombined statistical areaPopulation2025 estimateChange2020 CensusChange2010 CensusCleveland–Akron–Canton, OH CSAColumbus–Marion–Zanesville, OH CSACincinnati–Wilmington, OH-KY-IN CSA (OH)Dayton–Springfield–Kettering, OH CSAYoungstown–Warren–Salem, OH CSAMansfield–Ashland–Bucyrus, OH CSALima–Van Wert–Celina, OH CSACharleston–Huntington–Ashland, WV-OH-KY CSA (OH)Findlay–Tiffin, OH CSAPittsburgh–Weirton–Steubenville, PA-OH-WV CSA (OH)Parkersburg–Marietta–Vienna, WV-OH CSA (OH)Charleston–Huntington–Ashland, WV-OH-KY CSACincinnati–Wilmington, OH-KY-IN CSAParkersburg–Marietta–Vienna, WV-OH CSAPittsburgh–Weirton–Steubenville, PA-OH-WV CSA
See also
Demographics of Ohio
Notes
References
External links
Office of Management and Budget United States Census Bureau