List of counties in Ohio

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Counties of Ohio Ohio Counties Labeled White.svg
Counties of Ohio

The U.S. state of Ohio comprises 88 counties. Nine of them existed at the time of the Ohio Constitutional Convention in 1802. [1] A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan. [2] During the Convention, the county was opposed to statehood, and was not only left out of the Convention, but dissolved; the current Wayne County is in northeastern Ohio, considerably distant from the area that was the original Wayne County. [1]


The Ohio Constitution allows counties to set up a charter government as many cities and villages do, [3] but only Summit and Cuyahoga counties have done so, [4] the latter having been approved by voters in November 2009. [5] Counties do not possess home rule powers and can do only what has been expressly authorized by the Ohio General Assembly. The elected county officials include three commissioners, a sheriff (the highest law enforcement officer in the county); prosecutor (equivalent of a district attorney in other states); coroner, engineer, auditor, treasurer and clerk of courts. [6] [7]

Population figures are based on the 2010 United States Census. The population of Ohio was 11,536,504 at that time, an increase of 1.6% from 2000. The average population of Ohio's counties was 131,096; Cuyahoga County was the most populous (1,280,122) and Vinton County was the least (13,435). The average land area is 464 sq mi (1,200 km2). The largest county by area is Ashtabula County at 702.44 sq mi (1,819.3 km2), and its neighbor, Lake County, is the smallest at 228.21 sq mi (591.1 km2). The total area of the state is 40,860.69 sq mi (105,828.7 km2). [8] [9]

The Federal Information Processing Standard (FIPS) is used by the U.S. government to uniquely identify counties, and is provided for each entry. These codes link to the United States Census Bureau's "quick facts" for each county. Ohio's FIPS code of 39 is used to distinguish from counties in other states. For example, Adams County's unique nationwide identifier is 39001. [10] However, the Bureau of Motor Vehicles and Department of Transportation instead identify counties by consecutive numbers and three-letter abbreviations, [11] respectively. For historic preservation purposes, Ohio History Connection refers to counties by two- and three-letter abbreviations in the Ohio Archaeological Inventory and Ohio Historic Inventory, respectively. [12]

List of counties

FIPS code [10] County Seat [13] Est. [14] Origin [15] Etymology [14] [15] Population [10] [13] Area [13] Map
AdamsCounty 001 West Union Jul 10, 1797Hamilton County John Adams (1735–1826), President of the United States when the county was organized28,550583.91 sq mi
(1,512 km2)
Map of Ohio highlighting Adams County.svg
AllenCounty 003 Lima Mar 1, 1820Shelby County John Allen (1771/2-1813), a War of 1812 colonel [16] 106,331404.43 sq mi
(1,047 km2)
Map of Ohio highlighting Allen County.svg
AshlandCounty 005 Ashland Feb 24, 1846Wayne, Richland, Huron, and Lorain Counties Ashland, home of U.S. Senator from Kentucky Henry Clay 53,139424.37 sq mi
(1,099 km2)
Map of Ohio highlighting Ashland County.svg
AshtabulaCounty 007 Jefferson Jun 7, 1807Trumbull and Geauga Counties Ashtabula River, which means "fish river" in an Algonquian language [17] 101,497702.44 sq mi
(1,819 km2)
Map of Ohio highlighting Ashtabula County.svg
AthensCounty 009 Athens Mar 1, 1805Washington County Athens in Greece64,757506.76 sq mi
(1,313 km2)
Map of Ohio highlighting Athens County.svg
AuglaizeCounty 011 Wapakoneta Feb 14, 1848Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert Counties Auglaize River, which means "fallen timbers river" in the Shawnee Indian language45,949401.25 sq mi
(1,039 km2)
Map of Ohio highlighting Auglaize County.svg
BelmontCounty 013 St. Clairsville Sep 7, 1801Jefferson and Washington CountiesBelle monte, which means "beautiful mountain" in French70,400537.35 sq mi
(1,392 km2)
Map of Ohio highlighting Belmont County.svg
BrownCounty 015 Georgetown Mar 1, 1818Adams and Clermont CountiesGeneral Jacob Brown (1775–1828), an officer of the War of 1812 44,846491.76 sq mi
(1,274 km2)
Map of Ohio highlighting Brown County.svg
ButlerCounty 017 Hamilton May 1, 1803Hamilton CountyGeneral Richard Butler (1743–1791), killed at the Battle of the Wabash 368,130467.27 sq mi
(1,210 km2)
Map of Ohio highlighting Butler County.svg
CarrollCounty 019 Carrollton Jan 1, 1833Columbiana, Stark, Harrison, Jefferson, and Tuscarawas Counties Charles Carroll (1737–1832), last surviving signer of the United States Declaration of Independence 28,836394.67 sq mi
(1,022 km2)
Map of Ohio highlighting Carroll County.svg
ChampaignCounty 021 Urbana Mar 1, 1805Greene and Franklin CountiesFrench for "a plain", describing the land in the area40,097428.56 sq mi
(1,110 km2)
Map of Ohio highlighting Champaign County.svg
ClarkCounty 023 Springfield Mar 1, 1818Champaign, Madison, and Greene CountiesGeneral George Rogers Clark (1752–1818), defeated the Shawnee Indians in a battle near the Springfield area138,333399.86 sq mi
(1,036 km2)
Map of Ohio highlighting Clark County.svg
ClermontCounty 025 Batavia Dec 6, 1800Hamilton CountyFrench for "clear mountain"197,363451.99 sq mi
(1,171 km2)
Map of Ohio highlighting Clermont County.svg
ClintonCounty 027 Wilmington Mar 1, 1810Highland and Warren Counties George Clinton (1739–1812), vice-president when the county was organized42,040410.88 sq mi
(1,064 km2)
Map of Ohio highlighting Clinton County.svg
ColumbianaCounty 029 Lisbon May 1, 1803Jefferson and Washington Counties Christopher Columbus, European explorer of the Americas107,841532.46 sq mi
(1,379 km2)
Map of Ohio highlighting Columbiana County.svg
CoshoctonCounty 031 Coshocton Jan 31, 1810Muskingum and Tuscarawas Counties Delaware Indian word meaning "union of waters"36,901564.07 sq mi
(1,461 km2)
Map of Ohio highlighting Coshocton County.svg
CrawfordCounty 033 Bucyrus Apr 1, 1820Delaware CountyColonel William Crawford (1732–1782), Revolutionary War officer43,784402.11 sq mi
(1,041 km2)
Map of Ohio highlighting Crawford County.svg
CuyahogaCounty 035 Cleveland Jun 7, 1807Geauga County Cuyahoga River, which means "crooked river" in an Iroquoian language [18] 1,249,352458.49 sq mi
(1,187 km2)
Map of Ohio highlighting Cuyahoga County.svg
DarkeCounty 037 Greenville Jan 3, 1809Miami CountyGeneral William Darke (1736–1801), Revolutionary War officer52,959599.80 sq mi
(1,553 km2)
Map of Ohio highlighting Darke County.svg
DefianceCounty 039 Defiance Apr 7, 1845Williams, Henry, and Paulding Counties Fort Defiance, built in 1794 by General Anthony Wayne 39,037411.16 sq mi
(1,065 km2)
Map of Ohio highlighting Defiance County.svg
DelawareCounty 041 Delaware Apr 1, 1808Franklin County Delaware Indians 174,214442.41 sq mi
(1,146 km2)
Map of Ohio highlighting Delaware County.svg
ErieCounty 043 Sandusky Mar 15, 1838Huron and Sandusky Counties Erie Indians 77,079254.88 sq mi
(660 km2)
Map of Ohio highlighting Erie County.svg
FairfieldCounty 045 Lancaster Dec 9, 1800Ross and Washington CountiesNamed for the beauty of its "fair fields"146,156505.11 sq mi
(1,308 km2)
Map of Ohio highlighting Fairfield County.svg
FayetteCounty 047 Washington Court House Mar 1, 1810Ross and Highland Counties Gilbert du Motier, marquis de La Fayette, French military officer and aristocrat who participated in both the American and French revolutions29,030406.58 sq mi
(1,053 km2)
Map of Ohio highlighting Fayette County.svg
FranklinCounty 049 Columbus Apr 30, 1803Ross and Wayne Counties Benjamin Franklin (1706–1791), Founding Father, author, printer, political theorist, scientist, inventor, and statesman1,264,518539.87 sq mi
(1,398 km2)
Map of Ohio highlighting Franklin County.svg
FultonCounty 051 Wauseon Apr 1, 1850Lucas, Henry, and Williams Counties Robert Fulton (1765–1815), inventor of the steamboat [19] 42,698406.78 sq mi
(1,054 km2)
Map of Ohio highlighting Fulton County.svg
GalliaCounty 053 Gallipolis Apr 30, 1803Washington and Adams Counties Gaul, the ancient name of France 30,934468.78 sq mi
(1,214 km2)
Map of Ohio highlighting Gallia County.svg
GeaugaCounty 055 Chardon Mar 1, 1806Trumbull CountyAn Indian word meaning "raccoon"93,389403.66 sq mi
(1,045 km2)
Map of Ohio highlighting Geauga County.svg
GreeneCounty 057 Xenia May 1, 1803Hamilton and Ross CountiesGeneral Nathanael Greene (1742–1786), Revolutionary War officer161,573414.88 sq mi
(1,075 km2)
Map of Ohio highlighting Greene County.svg
GuernseyCounty 059 Cambridge Mar 1, 1810Belmont and Muskingum CountiesIsland of Guernsey, from where most of the settlers originated40,087521.90 sq mi
(1,352 km2)
Map of Ohio highlighting Guernsey County.svg
HamiltonCounty 061 Cincinnati Jan 2, 1790One of the original counties Alexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized802,374407.36 sq mi
(1,055 km2)
Map of Ohio highlighting Hamilton County.svg
HancockCounty 063 Findlay Apr 1, 1820Logan County John Hancock (1737–1793), president of the Continental Congress 74,782531.35 sq mi
(1,376 km2)
Map of Ohio highlighting Hancock County.svg
HardinCounty 065 Kenton Apr 1, 1820Logan CountyGeneral John Hardin (1753–1792), Revolutionary War officer32,058470.29 sq mi
(1,218 km2)
Map of Ohio highlighting Hardin County.svg
HarrisonCounty 067 Cadiz Feb 1, 1813Jefferson and Tuscarawas CountiesGeneral William Henry Harrison (1773–1841), an officer of the War of 1812 and future President of the United States 15,864403.53 sq mi
(1,045 km2)
Map of Ohio highlighting Harrison County.svg
HenryCounty 069 Napoleon Apr 1, 1820Shelby County Patrick Henry (1736–1799), Revolutionary War-era legislator, orator, and scholar28,215416.50 sq mi
(1,079 km2)
Map of Ohio highlighting Henry County.svg
HighlandCounty 071 Hillsboro May 1, 1805Ross, Adams, and Clermont CountiesDescriptive of the county's terrain43,589553.28 sq mi
(1,433 km2)
Map of Ohio highlighting Highland County.svg
HockingCounty 073 Logan Mar 1, 1818Athens, Ross, and Fairfield CountiesPossibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle"29,380422.75 sq mi
(1,095 km2)
Map of Ohio highlighting Hocking County.svg
HolmesCounty 075 Millersburg Jan 20, 1824Coshocton, Wayne, and Tuscarawas CountiesMajor Andrew Holmes (died 1814), a War of 1812 officer42,366422.99 sq mi
(1,096 km2)
Map of Ohio highlighting Holmes County.svg
HuronCounty 077 Norwalk Mar 7, 1809Portage and Cuyahoga Counties Huron Indians 59,626492.69 sq mi
(1,276 km2)
Map of Ohio highlighting Huron County.svg
JacksonCounty 079 Jackson Mar 1, 1816Scioto, Gallia, Athens, and Ross CountiesGeneral Andrew Jackson (1767–1845), future President of the United States33,225420.28 sq mi
(1,089 km2)
Map of Ohio highlighting Jackson County.svg
JeffersonCounty 081 Steubenville Jul 29, 1797Washington County Thomas Jefferson (1743–1826), Vice President when the county was organized, future President of the United States, and principal author of the Declaration of Independence 69,709409.61 sq mi
(1,061 km2)
Map of Ohio highlighting Jefferson County.svg
KnoxCounty 083 Mount Vernon Mar 1, 1808Fairfield CountyGeneral Henry Knox, the first Secretary of War 60,921527.12 sq mi
(1,365 km2)
Map of Ohio highlighting Knox County.svg
LakeCounty 085 Painesville Mar 6, 1840Geauga and Cuyahoga CountiesIts location on Lake Erie 230,041228.21 sq mi
(591 km2)
Map of Ohio highlighting Lake County.svg
LawrenceCounty 087 Ironton Dec 21, 1815Gallia and Scioto CountiesCaptain James Lawrence (1781–1813), naval hero in the War of 1812 62,450454.96 sq mi
(1,178 km2)
Map of Ohio highlighting Lawrence County.svg
LickingCounty 089 Newark Mar 1, 1808Fairfield County Licking River, named for the salt licks in the area, or an English pronunciation of the Lenape word W'li/'ik'/nk meaning "where the flood waters recede" [20] 166,492686.50 sq mi
(1,778 km2)
Map of Ohio highlighting Licking County.svg
LoganCounty 091 Bellefontaine Mar 1, 1818Champaign CountyGeneral Benjamin Logan (c. 1742 – 1802), who destroyed Shawnee Indian towns in the county45,858458.44 sq mi
(1,187 km2)
Map of Ohio highlighting Logan County.svg
LorainCounty 093 Elyria Dec 26, 1822Huron, Cuyahoga, and Medina CountiesProvince of Lorraine, France 301,356492.50 sq mi
(1,276 km2)
Map of Ohio highlighting Lorain County.svg
LucasCounty 095 Toledo Jun 20, 1835Wood, Sandusky, and Huron Counties Robert Lucas (1781–1853), Governor of Ohio when the county was created441,815340.46 sq mi
(882 km2)
Map of Ohio highlighting Lucas County.svg
MadisonCounty 097 London Mar 1, 1810Franklin County James Madison (1751–1836), fourth President of the United States 43,435465.44 sq mi
(1,205 km2)
Map of Ohio highlighting Madison County.svg
MahoningCounty 099 Youngstown Mar 1, 1846Columbiana and Trumbull Counties Mahoning River, from a Lenape word meaning "at the licks"238,823415.25 sq mi
(1,075 km2)
Map of Ohio highlighting Mahoning County.svg
MarionCounty 101 Marion Apr 1, 1820Delaware CountyGeneral Francis Marion (1732–1795), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War 66,501403.84 sq mi
(1,046 km2)
Map of Ohio highlighting Marion County.svg
MedinaCounty 103 Medina Feb 18, 1812Portage County Medina, world-renowned religious site in western Saudi Arabia 176,395423 sq mi
(1,096 km2)
Map of Ohio highlighting Medina County.svg
MeigsCounty 105 Pomeroy Apr 1, 1819Gallia and Athens Counties Return Jonathan Meigs, Jr. (1764–1825), Governor of Ohio and Postmaster General at the time the county was organized23,770429.42 sq mi
(1,112 km2)
Map of Ohio highlighting Meigs County.svg
MercerCounty 107 Celina Apr 1, 1820Darke CountyGeneral Hugh Mercer (1726–1777), a Revolutionary War officer40,814463.27 sq mi
(1,200 km2)
Map of Ohio highlighting Mercer County.svg
MiamiCounty 109 Troy Mar 1, 1807Montgomery County Miami Indians 102,506407.04 sq mi
(1,054 km2)
Map of Ohio highlighting Miami County.svg
MonroeCounty 111 Woodsfield Jan 29, 1813Belmont, Washington, and Guernsey Counties James Monroe (1758–1831), Secretary of State when the county was organized and future President of the United States 14,642455.54 sq mi
(1,180 km2)
Map of Ohio highlighting Monroe County.svg
MontgomeryCounty 113 Dayton May 1, 1803Hamilton and Wayne CountiesGeneral Richard Montgomery (1738–1775), a Revolutionary War officer535,153461.68 sq mi
(1,196 km2)
Map of Ohio highlighting Montgomery County.svg
MorganCounty 115 McConnelsville Dec 29, 1817Washington, Guernsey, and Muskingum CountiesGeneral Daniel Morgan (c. 1735 – 1802), a Revolutionary War officer15,054417.66 sq mi
(1,082 km2)
Map of Ohio highlighting Morgan County.svg
MorrowCounty 117 Mount Gilead Mar 1, 1848Knox, Marion, Delaware, and Richland Counties Jeremiah Morrow (1771–1852), Governor of Ohio 34,827406.22 sq mi
(1,052 km2)
Map of Ohio highlighting Morrow County.svg
MuskingumCounty 119 Zanesville Mar 1, 1804 [21] [22] Washington and Fairfield CountiesAn Indian word meaning "A town by the river" or "by the river side"86,074664.63 sq mi
(1,721 km2)
Map of Ohio highlighting Muskingum County.svg
NobleCounty 121 Caldwell Apr 1, 1851Monroe, Washington, Morgan, and Guernsey Counties Warren P. Noble, an early settler in the area [23] 14,645399.00 sq mi
(1,033 km2)
Map of Ohio highlighting Noble County.svg
OttawaCounty 123 Port Clinton Mar 6, 1840Erie, Sandusky, and Lucas CountiesNamed for the Ottawa Indians; Ottawa means "trader" in their language41,428254.95 sq mi
(660 km2)
Map of Ohio highlighting Ottawa County.svg
PauldingCounty 125 Paulding Apr 1, 1820Darke County John Paulding (1758–1818), captor of spy John André during the Revolutionary War 19,614416.26 sq mi
(1,078 km2)
Map of Ohio highlighting Paulding County.svg
PerryCounty 127 New Lexington Mar 1, 1818Washington, Fairfield, and Muskingum CountiesCommodore Oliver Hazard Perry (1785–1819), a naval officer of the War of 1812 36,058409.78 sq mi
(1,061 km2)
Map of Ohio highlighting Perry County.svg
PickawayCounty 129 Circleville Mar 1, 1810Ross, Fairfield, and Franklin CountiesA misspelling of the Piqua tribe, a branch of the Shawnee 55,698501.91 sq mi
(1,300 km2)
Map of Ohio highlighting Pickaway County.svg
PikeCounty 131 Waverly Feb 1, 1815Ross, Scioto, and Adams CountiesGeneral Zebulon M. Pike (1779–1813), a War of 1812 officer and discoverer of Pikes Peak in Colorado in 180628,709441.49 sq mi
(1,143 km2)
Map of Ohio highlighting Pike County.svg
PortageCounty 133 Ravenna Jun 7, 1807Trumbull CountyDerived from an Indian portage 161,419492.39 sq mi
(1,275 km2)
Map of Ohio highlighting Portage County.svg
PrebleCounty 135 Eaton Mar 1, 1808Montgomery and Butler CountiesCaptain Edward Preble (1761–1807), a Naval commander in the Revolutionary War 42,270424.80 sq mi
(1,100 km2)
Map of Ohio highlighting Preble County.svg
PutnamCounty 137 Ottawa Apr 1, 1820Shelby CountyGeneral Israel Putnam (1718–1790), a Revolutionary War officer34,499483.87 sq mi
(1,253 km2)
Map of Ohio highlighting Putnam County.svg
RichlandCounty 139 Mansfield Mar 1, 1808Fairfield CountyDescriptive of the soil in the area124,475496.88 sq mi
(1,287 km2)
Map of Ohio highlighting Richland County.svg
RossCounty 141 Chillicothe Aug 20, 1798Adams and Washington CountiesNamed for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair 78,064688.41 sq mi
(1,783 km2)
Map of Ohio highlighting Ross County.svg
SanduskyCounty 143 Fremont Apr 1, 1820Huron CountyAn Iroquois word meaning "cold water"60,944409.18 sq mi
(1,060 km2)
Map of Ohio highlighting Sandusky County.svg
SciotoCounty 145 Portsmouth May 1, 1803Adams County Scioto River; Scioto is a Wyandot Indian word meaning "deer"79,499612.27 sq mi
(1,586 km2)
Map of Ohio highlighting Scioto County.svg
SenecaCounty 147 Tiffin Apr 1, 1820Huron County Seneca Indians, who had a reservation in the county area at the time56,745550.59 sq mi
(1,426 km2)
Map of Ohio highlighting Seneca County.svg
ShelbyCounty 149 Sidney Apr 1, 1819Miami CountyGeneral Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky 49,423409.27 sq mi
(1,060 km2)
Map of Ohio highlighting Shelby County.svg
StarkCounty 151 Canton Feb 13, 1808Columbiana CountyGeneral John Stark (1728–1822), a Revolutionary War officer; known as the "Hero of Bennington" for his exemplary service at the Battle of Bennington in 1777375,586576.14 sq mi
(1,492 km2)
Map of Ohio highlighting Stark County.svg
SummitCounty 153 Akron Mar 3, 1840Medina, Portage, and Stark CountiesIts location at the highest elevation along the Ohio and Erie Canal 541,781419.38 sq mi
(1,086 km2)
Map of Ohio highlighting Summit County.svg
TrumbullCounty 155 Warren Jul 10, 1800Jefferson and Wayne Counties Jonathan Trumbull (1710–1785), Governor of Connecticut when the county was organized210,312616.48 sq mi
(1,597 km2)
Map of Ohio highlighting Trumbull County.svg
TuscarawasCounty 157 New Philadelphia Mar 15, 1808Muskingum County Tuscarawas River, meaning "open mouth river"
the Tuscarawas tribe who lived on the river
92,582567.58 sq mi
(1,470 km2)
Map of Ohio highlighting Tuscarawas County.svg
UnionCounty 159 Marysville Apr 1, 1820Delaware, Franklin, Logan, and Madison CountiesIts formation by a union of four counties52,300436.65 sq mi
(1,131 km2)
Map of Ohio highlighting Union County.svg
Van WertCounty 161 Van Wert Apr 1, 1820Darke County Isaac Van Wart (1760–1828), captor of spy John André during the Revolutionary War 28,744410.09 sq mi
(1,062 km2)
Map of Ohio highlighting Van Wert County.svg
VintonCounty 163 McArthur Mar 23, 1850Athens, Gallia, Hocking, Jackson, and Ross Counties Samuel Finley Vinton (1792–1862), Ohio Statesman and U.S. Congressman13,435414.08 sq mi
(1,072 km2)
Map of Ohio highlighting Vinton County.svg
WarrenCounty 165 Lebanon May 1, 1803Hamilton CountyGeneral Joseph Warren (1741–1775), a Revolutionary War officer212,693399.63 sq mi
(1,035 km2)
Map of Ohio highlighting Warren County.svg
WashingtonCounty 167 Marietta Jul 27, 1788One of the original counties George Washington (1732–1799), commander of the Continental Army, president of the Constitutional Convention, and future President of the United States 61,778635.15 sq mi
(1,645 km2)
Map of Ohio highlighting Washington County.svg
WayneCounty 169 Wooster Mar 1, 1808From non-county areaGeneral Anthony Wayne (1745–1796), a Revolutionary War officer114,520555.36 sq mi
(1,438 km2)
Map of Ohio highlighting Wayne County.svg
WilliamsCounty 171 Bryan Apr 1, 1820Darke County David Williams (1754–1831), captor of spy John André during the Revolutionary War 37,642421.74 sq mi
(1,092 km2)
Map of Ohio highlighting Williams County.svg
WoodCounty 173 Bowling Green Apr 1, 1820Refactored from non-county territory Eleazer D. Wood (1783–1814), founder of Fort Meigs 125,488617.32 sq mi
(1,599 km2)
Map of Ohio highlighting Wood County.svg
WyandotCounty 175 Upper Sandusky Feb 3, 1845Marion, Crawford, and Hardin Counties Wyandot Indians22,615405.61 sq mi
(1,051 km2)
Map of Ohio highlighting Wyandot County.svg

See also

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  1. 1 2 Laning, J.F. (1896). "The Evolution of Ohio Counties". Ohio Archaeological and Historical Publications . V: 326–350. Archived from the original on 2015-11-21.. Other editions available at ISBN   1249686741 and Google Books
  2. Lawyer, James Patterson (1905). History of Ohio: From the Glacial Period to the Present Time. Press of F. J. Heer. p. 381. Retrieved 2007-08-18.. Other editions available at ISBN   9781279183281
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  7. or empty |title= (help)
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  19. About Fulton County
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Further reading