County
|
INCITS
[8]
|
County Seat
[10]
|
Established
[10][11]
|
Origin
[12]
|
Etymology
[11][12]
|
Population
[8][10]
|
Area
[10]
|
Map
|
Adams County
|
001
|
West Union
|
July 10, 1797
|
Hamilton County
|
John Adams (1735-1826), President of the United States when the county was organized
|
7004285500000000000♠28,550
|
7002583910000000000♠583.91 sq mi
(7003151200000000000♠1,512 km2)
|
|
Allen County
|
003
|
Lima
|
March 1, 1820
|
Shelby County
|
John Allen (1771/2-1813), a War of 1812 colonel[13]
|
7005106331000000000♠106,331
|
7002404430000000000♠404.43 sq mi
(7003104700000000000♠1,047 km2)
|
|
Ashland County
|
005
|
Ashland
|
February 24, 1846
|
Wayne, Richland, Huron, and Lorain Counties
|
Ashland, home of U.S. Senator from Kentucky Henry Clay.
|
7004531390000000000♠53,139
|
7002424370000000000♠424.37 sq mi
(7003109900000000000♠1,099 km2)
|
|
Ashtabula County
|
007
|
Jefferson
|
June 7, 1807
|
Trumbull and Geauga Counties
|
Ashtabula River, which means "fish river" in an Algonquian language[14]
|
7005101497000000000♠101,497
|
7002702440000000000♠702.44 sq mi
(7003181900000000000♠1,819 km2)
|
|
Athens County
|
009
|
Athens
|
March 1, 1805
|
Washington County
|
Athens in Greece
|
7004647570000000000♠64,757
|
7002506760000000000♠506.76 sq mi
(7003131300000000000♠1,313 km2)
|
|
Auglaize County
|
011
|
Wapakoneta
|
February 14, 1848
|
Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert Counties
|
Auglaize River, which means "fallen timbers river" in the Shawnee Indian language
|
7004459490000000000♠45,949
|
7002401250000000000♠401.25 sq mi
(7003103900000000000♠1,039 km2)
|
|
Belmont County
|
013
|
St. Clairsville
|
September 7, 1801
|
Jefferson and Washington Counties
|
Belle monte, which means "beautiful mountain" in French
|
7004704000000000000♠70,400
|
7002537350000000000♠537.35 sq mi
(7003139200000000000♠1,392 km2)
|
|
Brown County
|
015
|
Georgetown
|
March 1, 1818
|
Adams and Clermont Counties
|
General Jacob Brown (1775-1828), an officer of the War of 1812
|
7004448460000000000♠44,846
|
7002491760000000000♠491.76 sq mi
(7003127400000000000♠1,274 km2)
|
|
Butler County
|
017
|
Hamilton
|
May 1, 1803
|
Hamilton County
|
General Richard Butler (1743-1791), killed at the Battle of the Wabash
|
7005368130000000000♠368,130
|
7002467270000000000♠467.27 sq mi
(7003121000000000000♠1,210 km2)
|
|
Carroll County
|
019
|
Carrollton
|
January 1, 1833
|
Columbiana, Stark, Harrison, Jefferson, and Tuscarawas Counties
|
Charles Carroll (1737-1832), last surviving signer of the United States Declaration of Independence
|
7004288360000000000♠28,836
|
7002394670000000000♠394.67 sq mi
(7003102200000000000♠1,022 km2)
|
|
Champaign County
|
021
|
Urbana
|
March 1, 1805
|
Greene and Franklin Counties
|
French for "a plain", describing the land in the area
|
7004400970000000000♠40,097
|
7002428560000000000♠428.56 sq mi
(7003111000000000000♠1,110 km2)
|
|
Clark County
|
023
|
Springfield
|
March 1, 1818
|
Champaign, Madison, and Greene Counties
|
General Shawnee Indians in a battle near the Springfield area
|
7005138333000000000♠138,333
|
7002399860000000000♠399.86 sq mi
(7003103600000000000♠1,036 km2)
|
|
Clermont County
|
025
|
Batavia
|
December 6, 1800
|
Hamilton County
|
French for "clear mountain"
|
7005197363000000000♠197,363
|
7002451990000000000♠451.99 sq mi
(7003117100000000000♠1,171 km2)
|
|
Clinton County
|
027
|
Wilmington
|
March 1, 1810
|
Highland and Warren Counties
|
George Clinton (1739-1812), vice-president when the county was organized
|
7004420400000000000♠42,040
|
7002410880000000000♠410.88 sq mi
(7003106400000000000♠1,064 km2)
|
|
Columbiana County
|
029
|
Lisbon
|
May 1, 1803
|
Jefferson and Washington Counties
|
Derived from the words Christopher Columbus, European explorer of the Americas
|
7005107841000000000♠107,841
|
7002532460000000000♠532.46 sq mi
(7003137900000000000♠1,379 km2)
|
|
Coshocton County
|
031
|
Coshocton
|
January 31, 1810
|
Muskingum and Tuscarawas Counties
|
Delaware Indian word meaning "union of waters"
|
7004369010000000000♠36,901
|
7002564070000000000♠564.07 sq mi
(7003146100000000000♠1,461 km2)
|
|
Crawford County
|
033
|
Bucyrus
|
April 1, 1820
|
Delaware County
|
Colonel William Crawford (1732-1782), Revolutionary War officer
|
7004437840000000000♠43,784
|
7002402110000000000♠402.11 sq mi
(7003104100000000000♠1,041 km2)
|
|
Cuyahoga County
|
035
|
Cleveland
|
June 7, 1807
|
Geauga County
|
Cuyahoga River, which means "crooked river" in an Iroquoian language[15]
|
7006128012200000000♠1,280,122
|
7002458490000000000♠458.49 sq mi
(7003118700000000000♠1,187 km2)
|
|
Darke County
|
037
|
Greenville
|
January 3, 1809
|
Miami County
|
General William Darke (1736-1801), Revolutionary War officer
|
7004529590000000000♠52,959
|
7002599800000000000♠599.80 sq mi
(7003155300000000000♠1,553 km2)
|
|
Defiance County
|
039
|
Defiance
|
April 7, 1845
|
Williams, Henry, and Paulding Counties
|
Fort Defiance, built in 1794 by General Anthony Wayne
|
7004390370000000000♠39,037
|
7002411160000000000♠411.16 sq mi
(7003106500000000000♠1,065 km2)
|
|
Delaware County
|
041
|
Delaware
|
April 1, 1808
|
Franklin County
|
Delaware Indians
|
7005174214000000000♠174,214
|
7002442410000000000♠442.41 sq mi
(7003114600000000000♠1,146 km2)
|
|
Erie County
|
043
|
Sandusky
|
March 15, 1838
|
Huron and Sandusky Counties
|
Erie Indians
|
7004770790000000000♠77,079
|
7002254880000000000♠254.88 sq mi
(7002660000000000000♠660 km2)
|
|
Fairfield County
|
045
|
Lancaster
|
December 9, 1800
|
Ross and Washington Counties
|
Named for the beauty of its "fair fields"
|
7005146156000000000♠146,156
|
7002505110000000000♠505.11 sq mi
(7003130800000000000♠1,308 km2)
|
|
Fayette County
|
047
|
Washington Court House
|
March 1, 1810
|
Ross and Highland Counties
|
Marquis de Lafayette, French military officer and aristocrat who participated in both the American and French revolutions.
|
7004290300000000000♠29,030
|
7002406580000000000♠406.58 sq mi
(7003105300000000000♠1,053 km2)
|
|
Franklin County
|
049
|
Columbus
|
April 30, 1803
|
Ross and Wayne Counties
|
Benjamin Franklin (1706-1791), Founding Father, author, printer, political theorist, scientist, inventor, and statesman
|
7006116341400000000♠1,163,414
|
7002539870000000000♠539.87 sq mi
(7003139800000000000♠1,398 km2)
|
|
Fulton County
|
051
|
Wauseon
|
April 1, 1850
|
Lucas, Henry, and Williams Counties
|
Robert Fulton (1765-1815), inventor of the steamboat
|
7004426980000000000♠42,698
|
7002406780000000000♠406.78 sq mi
(7003105400000000000♠1,054 km2)
|
|
Gallia County
|
053
|
Gallipolis
|
April 30, 1803
|
Washington and Adams Counties
|
Gaul, the ancient name of France
|
7004309340000000000♠30,934
|
7002468780000000000♠468.78 sq mi
(7003121400000000000♠1,214 km2)
|
|
Geauga County
|
055
|
Chardon
|
March 1, 1806
|
Trumbull County
|
An Indian word meaning "raccoon"
|
7004933890000000000♠93,389
|
7002403660000000000♠403.66 sq mi
(7003104500000000000♠1,045 km2)
|
|
Greene County
|
057
|
Xenia
|
May 1, 1803
|
Hamilton and Ross Counties
|
General Nathanael Greene (1742-1786), Revolutionary War officer
|
7005161573000000000♠161,573
|
7002414880000000000♠414.88 sq mi
(7003107500000000000♠1,075 km2)
|
|
Guernsey County
|
059
|
Cambridge
|
March 1, 1810
|
Belmont and Muskingum Counties
|
Island of Guernsey, from where most of the settlers originated
|
7004400870000000000♠40,087
|
7002521900000000000♠521.90 sq mi
(7003135200000000000♠1,352 km2)
|
|
Hamilton County
|
061
|
Cincinnati
|
January 2, 1790
|
One of the original counties
|
Alexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized
|
7005802374000000000♠802,374
|
7002407360000000000♠407.36 sq mi
(7003105500000000000♠1,055 km2)
|
|
Hancock County
|
063
|
Findlay
|
April 1, 1820
|
Logan County
|
John Hancock (1737-1793), president of the Continental Congress
|
7004747820000000000♠74,782
|
7002531350000000000♠531.35 sq mi
(7003137600000000000♠1,376 km2)
|
|
Hardin County
|
065
|
Kenton
|
April 1, 1820
|
Logan County
|
General John Hardin (1753-1792), Revolutionary War officer
|
7004320580000000000♠32,058
|
7002470290000000000♠470.29 sq mi
(7003121800000000000♠1,218 km2)
|
|
Harrison County
|
067
|
Cadiz
|
February 1, 1813
|
Jefferson and Tuscarawas Counties
|
General William Henry Harrison (1773-1841), an officer of the War of 1812 and future President of the United States
|
7004158640000000000♠15,864
|
7002403530000000000♠403.53 sq mi
(7003104500000000000♠1,045 km2)
|
|
Henry County
|
069
|
Napoleon
|
April 1, 1820
|
Shelby County
|
Patrick Henry (1736-1799), Revolutionary War-era legislator, orator, and scholar
|
7004282150000000000♠28,215
|
7002416500000000000♠416.50 sq mi
(7003107900000000000♠1,079 km2)
|
|
Highland County
|
071
|
Hillsboro
|
May 1, 1805
|
Ross, Adams, and Clermont Counties
|
Descriptive of the county's terrain
|
7004435890000000000♠43,589
|
7002553280000000000♠553.28 sq mi
(7003143300000000000♠1,433 km2)
|
|
Hocking County
|
073
|
Logan
|
March 1, 1818
|
Athens, Ross, and Fairfield Counties
|
Possibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle"
|
7004293800000000000♠29,380
|
7002422750000000000♠422.75 sq mi
(7003109500000000000♠1,095 km2)
|
|
Holmes County
|
075
|
Millersburg
|
January 20, 1824
|
Coshocton, Wayne, and Tuscarawas Counties
|
Major Andrew Holmes (d. 1814), a War of 1812 officer
|
7004423660000000000♠42,366
|
7002422990000000000♠422.99 sq mi
(7003109600000000000♠1,096 km2)
|
|
Huron County
|
077
|
Norwalk
|
March 7, 1809
|
Portage and Cuyahoga Counties
|
Huron Indians
|
7004596260000000000♠59,626
|
7002492690000000000♠492.69 sq mi
(7003127600000000000♠1,276 km2)
|
|
Jackson County
|
079
|
Jackson
|
March 1, 1816
|
Scioto, Gallia, Athens, and Ross Counties
|
General Andrew Jackson (1767-1845), future President of the United States
|
7004332250000000000♠33,225
|
7002420280000000000♠420.28 sq mi
(7003108900000000000♠1,089 km2)
|
|
Jefferson County
|
081
|
Steubenville
|
July 29, 1797
|
Washington County
|
President of the United States, and principal author of the Declaration of Independence
|
7004697090000000000♠69,709
|
7002409610000000000♠409.61 sq mi
(7003106100000000000♠1,061 km2)
|
|
Knox County
|
083
|
Mount Vernon
|
March 1, 1808
|
Fairfield County
|
General Henry Knox, the first Secretary of War
|
7004609210000000000♠60,921
|
7002527120000000000♠527.12 sq mi
(7003136500000000000♠1,365 km2)
|
|
Lake County
|
085
|
Painesville
|
March 6, 1840
|
Geauga and Cuyahoga Counties
|
Its location on Lake Erie
|
7005230041000000000♠230,041
|
7002228210000000000♠228.21 sq mi
(7002591000000000000♠591 km2)
|
|
Lawrence County
|
087
|
Ironton
|
December 21, 1815
|
Gallia and Scioto Counties
|
Captain James Lawrence (1781-1813), naval hero in the War of 1812
|
7004624500000000000♠62,450
|
7002454960000000000♠454.96 sq mi
(7003117800000000000♠1,178 km2)
|
|
Licking County
|
089
|
Newark
|
March 1, 1808
|
Fairfield County
|
Named for the salt licks in the area
|
7005166492000000000♠166,492
|
7002686500000000000♠686.50 sq mi
(7003177800000000000♠1,778 km2)
|
|
Logan County
|
091
|
Bellefontaine
|
March 1, 1818
|
Champaign County
|
General Benjamin Logan (c. 1742-1802), who destroyed Shawnee Indian towns in the county
|
7004458580000000000♠45,858
|
7002458440000000000♠458.44 sq mi
(7003118700000000000♠1,187 km2)
|
|
Lorain County
|
093
|
Elyria
|
December 26, 1822
|
Huron, Cuyahoga, and Medina Counties
|
Province of Lorraine, France
|
7005301356000000000♠301,356
|
7002492500000000000♠492.50 sq mi
(7003127600000000000♠1,276 km2)
|
|
Lucas County
|
095
|
Toledo
|
June 20, 1835
|
Wood, Sandusky, and Huron Counties
|
Robert Lucas (1781-1853), Governor of Ohio when the county was created
|
7005441815000000000♠441,815
|
7002340460000000000♠340.46 sq mi
(7002882000000000000♠882 km2)
|
|
Madison County
|
097
|
London
|
March 1, 1810
|
Franklin County
|
James Madison (1751-1836), fourth President of the United States
|
7004434350000000000♠43,435
|
7002465440000000000♠465.44 sq mi
(7003120500000000000♠1,205 km2)
|
|
Mahoning County
|
099
|
Youngstown
|
March 1, 1846
|
Columbiana and Trumbull Counties
|
Mahoning River, from an Indian word meaning "at the licks"
|
7005238823000000000♠238,823
|
7002415250000000000♠415.25 sq mi
(7003107500000000000♠1,075 km2)
|
|
Marion County
|
101
|
Marion
|
April 1, 1820
|
Delaware County
|
General Francis Marion (1732-1795), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War.
|
7004665010000000000♠66,501
|
7002403840000000000♠403.84 sq mi
(7003104600000000000♠1,046 km2)
|
|
Medina County
|
103
|
Medina
|
February 18, 1812
|
Portage County
|
Medina, world-renowned religious site in western Saudi Arabia
|
7005172332000000000♠172,332
|
7002421550000000000♠421.55 sq mi
(7003109200000000000♠1,092 km2)
|
|
Meigs County
|
105
|
Pomeroy
|
April 1, 1819
|
Gallia and Athens Counties
|
Return Jonathan Meigs, Jr. (1764-1825), Governor of Ohio and Postmaster General at the time the county was organized
|
7004237700000000000♠23,770
|
7002429420000000000♠429.42 sq mi
(7003111200000000000♠1,112 km2)
|
|
Mercer County
|
107
|
Celina
|
April 1, 1820
|
Darke County
|
General Hugh Mercer (1726-1777), a Revolutionary War officer
|
7004408140000000000♠40,814
|
7002463270000000000♠463.27 sq mi
(7003120000000000000♠1,200 km2)
|
|
Miami County
|
109
|
Troy
|
March 1, 1807
|
Montgomery County
|
Miami Indians
|
7005102506000000000♠102,506
|
7002407040000000000♠407.04 sq mi
(7003105400000000000♠1,054 km2)
|
|
Monroe County
|
111
|
Woodsfield
|
January 29, 1813
|
Belmont, Washington, and Guernsey Counties
|
President of the United States
|
7004146420000000000♠14,642
|
7002455540000000000♠455.54 sq mi
(7003118000000000000♠1,180 km2)
|
|
Montgomery County
|
113
|
Dayton
|
May 1, 1803
|
Hamilton and Wayne Counties
|
General Richard Montgomery (1738-1775), a Revolutionary War officer
|
7005535153000000000♠535,153
|
7002461680000000000♠461.68 sq mi
(7003119600000000000♠1,196 km2)
|
|
Morgan County
|
115
|
McConnelsville
|
December 29, 1817
|
Washington, Guernsey, and Muskingum Counties
|
General Revolutionary War officer
|
7004150540000000000♠15,054
|
7002417660000000000♠417.66 sq mi
(7003108200000000000♠1,082 km2)
|
|
Morrow County
|
117
|
Mount Gilead
|
March 1, 1848
|
Knox, Marion, Delaware, and Richland Counties
|
Jeremiah Morrow (1771-1852), Governor of Ohio
|
7004348270000000000♠34,827
|
7002406220000000000♠406.22 sq mi
(7003105200000000000♠1,052 km2)
|
|
Muskingum County
|
119
|
Zanesville
|
March 1, 1804
|
Washington and Fairfield Counties
|
An Indian word meaning "A town by the river" or "by the river side"
|
7004860740000000000♠86,074
|
7002664630000000000♠664.63 sq mi
(7003172100000000000♠1,721 km2)
|
|
Noble County
|
121
|
Caldwell
|
April 1, 1851
|
Monroe, Washington, Morgan, and Guernsey Counties
|
James Noble (1785-1831), an early settler and future U.S. Senator from Indiana
|
7004146450000000000♠14,645
|
7002399000000000000♠399.00 sq mi
(7003103300000000000♠1,033 km2)
|
|
Ottawa County
|
123
|
Port Clinton
|
March 6, 1840
|
Erie, Sandusky, and Lucas Counties
|
Named for the Ottawa Indians; Ottawa means "trader" in their language
|
7004414280000000000♠41,428
|
7002254950000000000♠254.95 sq mi
(7002660000000000000♠660 km2)
|
|
Paulding County
|
125
|
Paulding
|
April 1, 1820
|
Darke County
|
John Paulding (1758-1818), captor of spy John André during the Revolutionary War
|
7004196140000000000♠19,614
|
7002416260000000000♠416.26 sq mi
(7003107800000000000♠1,078 km2)
|
|
Perry County
|
127
|
New Lexington
|
March 1, 1818
|
Washington, Fairfield, and Muskingum Counties
|
Commodore Oliver Hazard Perry (1785-1819), a naval officer of the War of 1812
|
7004360580000000000♠36,058
|
7002409780000000000♠409.78 sq mi
(7003106100000000000♠1,061 km2)
|
|
Pickaway County
|
129
|
Circleville
|
March 1, 1810
|
Ross, Fairfield, and Franklin Counties
|
A misspelling of the Piqua tribe, a branch of the Shawnee
|
7004556980000000000♠55,698
|
7002501910000000000♠501.91 sq mi
(7003130000000000000♠1,300 km2)
|
|
Pike County
|
131
|
Waverly
|
February 1, 1815
|
Ross, Scioto, and Adams Counties
|
General Zebulon M. Pike (1779-1813), a Revolutionary War officer and discoverer of Pikes Peak in Colorado in 1806
|
7004287090000000000♠28,709
|
7002441490000000000♠441.49 sq mi
(7003114300000000000♠1,143 km2)
|
|
Portage County
|
133
|
Ravenna
|
June 7, 1807
|
Trumbull County
|
Derived from an Indian portage
|
7005161419000000000♠161,419
|
7002492390000000000♠492.39 sq mi
(7003127500000000000♠1,275 km2)
|
|
Preble County
|
135
|
Eaton
|
March 1, 1808
|
Montgomery and Butler Counties
|
Captain Edward Preble (1761-1807), a Naval commander in the Revolutionary War
|
7004422700000000000♠42,270
|
7002424800000000000♠424.80 sq mi
(7003110000000000000♠1,100 km2)
|
|
Putnam County
|
137
|
Ottawa
|
April 1, 1820
|
Shelby County
|
General Israel Putnam (1718-1790), a Revolutionary War officer
|
7004344990000000000♠34,499
|
7002483870000000000♠483.87 sq mi
(7003125300000000000♠1,253 km2)
|
|
Richland County
|
139
|
Mansfield
|
March 1, 1808
|
Fairfield County
|
Descriptive of the soil in the area
|
7005124475000000000♠124,475
|
7002496880000000000♠496.88 sq mi
(7003128700000000000♠1,287 km2)
|
|
Ross County
|
141
|
Chillicothe
|
August 20, 1798
|
Adams and Washington Counties
|
Named for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair
|
7004780640000000000♠78,064
|
7002688410000000000♠688.41 sq mi
(7003178300000000000♠1,783 km2)
|
|
Sandusky County
|
143
|
Fremont
|
April 1, 1820
|
Huron County
|
An Iroquois word meaning "cold water"
|
7004609440000000000♠60,944
|
7002409180000000000♠409.18 sq mi
(7003106000000000000♠1,060 km2)
|
|
Scioto County
|
145
|
Portsmouth
|
May 1, 1803
|
Adams County
|
Scioto River; Scioto is a Wyandot Indian word meaning "deer"
|
7004794990000000000♠79,499
|
7002612270000000000♠612.27 sq mi
(7003158600000000000♠1,586 km2)
|
|
Seneca County
|
147
|
Tiffin
|
April 1, 1820
|
Huron County
|
Seneca Indians, who had a reservation in the county area at the time
|
7004567450000000000♠56,745
|
7002550590000000000♠550.59 sq mi
(7003142600000000000♠1,426 km2)
|
|
Shelby County
|
149
|
Sidney
|
April 1, 1819
|
Miami County
|
General Isaac Shelby (1750-1826), a Revolutionary War officer and Governor of Kentucky,
|
7004494230000000000♠49,423
|
7002409270000000000♠409.27 sq mi
(7003106000000000000♠1,060 km2)
|
|
Stark County
|
151
|
Canton
|
February 13, 1808
|
Columbiana County
|
General John Stark (1728-1822), a Revolutionary War officer; known as the "Hero of Bennington" for his exemplary service at the Battle of Bennington in 1777
|
7005375586000000000♠375,586
|
7002576140000000000♠576.14 sq mi
(7003149200000000000♠1,492 km2)
|
|
Summit County
|
153
|
Akron
|
March 3, 1840
|
Medina, Portage, and Stark Counties
|
Its location at the highest elevation along the Ohio and Erie Canal
|
7005541781000000000♠541,781
|
7002419380000000000♠419.38 sq mi
(7003108600000000000♠1,086 km2)
|
|
Trumbull County
|
155
|
Warren
|
July 10, 1800
|
Jefferson and Wayne Counties
|
Jonathan Trumbull (1710-1785), Governor of Connecticut when the county was organized
|
7005210312000000000♠210,312
|
7002616480000000000♠616.48 sq mi
(7003159700000000000♠1,597 km2)
|
|
Tuscarawas County
|
157
|
New Philadelphia
|
March 15, 1808
|
Muskingum County
|
Tuscarawas River, meaning "open mouth river"
or
the Tuscarawas tribe who lived on the river
|
7004925820000000000♠92,582
|
7002567580000000000♠567.58 sq mi
(7003147000000000000♠1,470 km2)
|
|
Union County
|
159
|
Marysville
|
April 1, 1820
|
Delaware, Franklin, Logan, and Madison Counties
|
Its formation by a union of four counties
|
7004523000000000000♠52,300
|
7002436650000000000♠436.65 sq mi
(7003113100000000000♠1,131 km2)
|
|
Van Wert County
|
161
|
Van Wert
|
April 1, 1820
|
Darke County
|
Isaac Van Wart (1760-1828), captor of spy John André during the Revolutionary War
|
7004287440000000000♠28,744
|
7002410090000000000♠410.09 sq mi
(7003106200000000000♠1,062 km2)
|
|
Vinton County
|
163
|
McArthur
|
March 23, 1850
|
Athens, Gallia, Hocking, Jackson, and Ross Counties
|
Samuel Finley Vinton (1792-1862), Ohio Statesman and U.S. Congressman
|
7004134350000000000♠13,435
|
7002414080000000000♠414.08 sq mi
(7003107200000000000♠1,072 km2)
|
|
Warren County
|
165
|
Lebanon
|
May 1, 1803
|
Hamilton County
|
General Joseph Warren (1741-1775), a Revolutionary War officer
|
7005212693000000000♠212,693
|
7002399630000000000♠399.63 sq mi
(7003103500000000000♠1,035 km2)
|
|
Washington County
|
167
|
Marietta
|
July 27, 1788
|
One of the original counties
|
Continental Army, president of the Constitutional Convention, and future President of the United States
|
7004617780000000000♠61,778
|
7002635150000000000♠635.15 sq mi
(7003164500000000000♠1,645 km2)
|
|
Wayne County
|
169
|
Wooster
|
March 1, 1808
|
From non-county area
|
General Anthony Wayne (1745-1796), a Revolutionary War officer
|
7005114520000000000♠114,520
|
7002555360000000000♠555.36 sq mi
(7003143800000000000♠1,438 km2)
|
|
Williams County
|
171
|
Bryan
|
April 1, 1820
|
Darke County
|
David Williams (1754-1831), captor of spy John André during the Revolutionary War
|
7004376420000000000♠37,642
|
7002421740000000000♠421.74 sq mi
(7003109200000000000♠1,092 km2)
|
|
Wood County
|
173
|
Bowling Green
|
April 1, 1820
|
Refactored from non-county territory
|
Eleazer D. Wood (1783-1814), founder of Fort Meigs
|
7005125488000000000♠125,488
|
7002617320000000000♠617.32 sq mi
(7003159900000000000♠1,599 km2)
|
|
Wyandot County
|
175
|
Upper Sandusky
|
February 3, 1845
|
Marion, Crawford, and Hardin Counties
|
Wyandot Indians
|
7004226150000000000♠22,615
|
7002405610000000000♠405.61 sq mi
(7003105100000000000♠1,051 km2)
|
|