Pennsylvania Counties
According to the
Pennsylvania Manual
, v114, as of 1999 Pennsylvania's government structure included 67 counties, 56
cities, 964 boroughs, 1 incorporated town (Bloomsburg), 1,548 townships, 501
school districts, and 2,198 authorities. (An authority is a special kind of
local unit authorized to perform a specific service, eg, a sewer authority or
redevelopment authority, etc.)
County, Date created and parent county; County seat
County GenWeb site  
County Govt Site  
Municipal Info
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Adams
22 Jan 1800 from part of York county, named for President John Adams;
Gettysburg named for James Gettys, a local landowner
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Allegheny
24 Sep 1788 from parts of Washington & Westmoreland counties, named for
the Allegheny River; Pittsburgh named for William Pitt, a British statesman
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Armstrong
12 Mar 1800 from parts of Allegheny Lycoming & Westmoreland counties,
named for General John Armstrong; Kittanning named for a Delaware Indian
village that had been located there
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Beaver
12 Mar 1800 from parts of Allegheny & Washington counties, named for the
Beaver River; Beaver
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Bedford
9 Mar 1771 from part of Cumberland county, named for Fort Bedford, which had
been named for the Duke of Bedford; Bedford is located on the site of Fort
Bedford
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Berks
11 Mar 1752 from parts of Chester, Lancaster & Philadelphia counties,
named for Berkshire in England; Reading named for Berkshire's county town
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Blair
26 Feb 1846 from parts of Bedford & Huntingdon counties, named for John Blair,
a prominent citizen; Hollidaysburg named for Adam & William Holliday, early
settlers
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Bradford
21 Feb 1810 from parts of Luzerne & Lycoming counties, named Ontario
County for Lake Ontario; organized and renamed Bradford County on 24 Mar 1812
in honor of William Bradford, second Attorney General of the US; Towanda named
for Towanda Creek
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Bucks
one of the original counties created in Nov 1682, named for
Buckinghamshire in England, home of the Penns; Doylestown named for William
Doyle, an innkeeper
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Butler
12 Mar 1800 from part of Allegheny county, named for General Richard
Butler; Butler
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Cambria
26 Mar 1804 from parts of Bedford, Huntingdon & Somerset counties, named for
Cambria Twp in Somerset & is an ancient name for Wales; Ebensburg named for
Eben Lloyd, deceased eldest son of Rev Rees Lloyd
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Cameron
29 Mar 1860 from parts of Clinton, Elk, McKean & Potter counties, named for US
Senator Simon Cameron; Emporium is Latin for 'market or trade center'
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Carbon
13 Mar 1843 from parts of Monroe & Northampton counties, Jim Thorpe was
originally Mauch Chunk, an Indian name meaning 'bear mountain', and renamed in
1954 for the famous athlete buried there
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Centre
13 Feb 1800 from parts of Huntingdon, Lycoming, Mifflin & Northumberland
counties, named for its location in the state; Bellefonte is French for
'beautiful spring' (the water, not the season), named for a large spring
located there & said to have been recommended by the French statesman,
Talleyrand
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Chester
one of the original counties created in Nov 1682, named for Cheshire in
England; West Chester named for Chester, the original county seat, which is now
in Delaware county
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Clarion
11 Mar 1839 from parts of Armstrong & Venango counties, named for the Clarion
River; Clarion
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Clearfield
26 Mar 1804 from parts of Huntingdon & Lycoming counties, but operated
as a part of Centre county until 1812, named for Clearfield Creek; Clearfield
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Clinton
21 Jun 1839 from parts of Centre & Lycoming counties, probably named for
Gov DeWitt Clinton of NY, a proponent of the Erie Canal; Lock Haven named for
its position on the West Branch Canal
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Columbia
22 Mar 1813 from part of Northumberland county, named as a poetic
allusion to America; Bloomsburg named for Bloom Twp, which was named for Samuel
Bloom, a commissioner of Northumberland county
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Crawford
12 Mar 1800 from part of Allegheny county, named for Col William Crawford, a
frontier hero; Meadville named for its founder, David Mead
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Cumberland
27 Jan 1750 from part of Lancaster county, named for Cumberland County
in England; Carlisle named for Cumberland's county town
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Dauphin
4 Mar 1785 from part of Lancaster county, named for the 'Dauphin', title
of the eldest son of the French king; Harrisburg named for its founder, John
Harris
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Delaware
26 Sep 1789 from part of Chester county, named for the Delaware River,
which had been named for Lord de la Warr, governor of VA; Media named for its
central location in the county
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Elk
18 Apr 1843 from parts of Clearfield, Jefferson & McKean counties, named
for the elk which used to roam the county; Ridgway named for Jacob Ridgway, a
local landowner
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Erie
12 Mar 1800 from part of Allegheny county, named for Lake Erie, which
was named for the Erie Indians, attached to Crawford county until 1803; Erie
named because it was PA's port on Lake Erie
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Fayette
26 Sep 1783 from part of Westmoreland county, named for the Marquis de
la Fayette; Uniontown was originally Beeson's-town and renamed in allusion to
the federal union
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Forest
11 Apr 1848 from part of Jefferson county, part of Venango county was added 31
Oct 1866; named for its extensive forests; Tionesta named for the Tionesta Creek
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Franklin
9 Sep 1784 from part of Cumberland county, named for Benjamin Franklin;
Chambersburg named for its founder, Benjamin Chambers
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Fulton
19 Apr 1851 from part of Bedford county, baned for Robert Fulton of steamboat
fame; McConnellsburg named for Daniel McConnell who laid it out
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Greene
9 Feb 1796 from part of Washington county, named for General Nathaniel
Greene; Waynesburg named for Major General Anthony Wayne
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Huntingdon
20 Sep 1787 from part of Bedford county, named for its county seat,
Huntingdon, which was named for the Countess of Huntingdon in England
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Indiana
30 Mar 1803 from parts of Lycoming & Westmoreland counties, probably
named for the Indiana Territory; Indiana
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Jefferson
26 Mar 1804 from part of Lycoming county, named for President Thomas
Jefferson; Brookville said to be named for the numerous streams in the area
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Juniata
2 Mar 1831 from part of Mifflin county, named for Juniata River, in
turned named for the Indian word said to mean 'people of the standing stone';
Mifflintown named for Governor Thomas Mifflin
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Lackawanna
the last county created; 13 Aug 1878 from part of Luzerne county, named for
the Lackawanna River which means 'a stream that forks'; Scranton was named for
the Scranton family
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Lancaster
10 May 1729 from part of Chester county, named for Lancashire in
England; Lancaster named for the county town in England
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Lawrence
20 Mar 1849 from parts of Beaver & Mercer counties, named for Perry's
flagship, "Lawrence", which had been named for Captain James Lawrence, a naval
hero; New Castle named either for Newcastle, England or New Castle, Delaware
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Lebanon
16 Feb 1813 from parts of Dauphin & Lancaster counties, named for the former
Lebanon Twp, with the Biblical meaning 'white mountain'; Lebanon
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Lehigh
6 Mar 1812 from part of Northampton county, named for the Lehigh River,
which came from an Indian word meaning 'where there are forks'; Allentown named
for Chief Justice William Allen, a local landowner
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Luzerne
25 Sep 1786 from part of Northumberland county, named for the Chevalier
de la Luzerne, French minister to the US; Wilkes-Barre named for two MPs, John
Wilkes and Isaac Barre, advocates of American rights
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Lycoming
13 Apr 1795 from part of Northumberland county, named for Lycoming
Creek, which was named for the Delaware Indian word of 'sandy or gravelly
creek'; Williamsport attributed to both Judge William Hepburn and to William
Ross, an early boatman
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McKean
26 Mar 1804 from part of Lycoming county, attached to Centre county until
1814, then combined with Potter county until fully organized in 1826; named for
Governor Thomas McKean; Smethport named for Raymond & Theodore de Smeth,
Amsterdam bankers
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Mercer
12 Mar 1800 from part of Allegheny county, named for General Hugh
Mercer; Mercer
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Mifflin
19 Sep 1789 from parts of Cumberland & Northumberland counties, named for
Governor Thomas Mifflin; Lewistown named for William Lewis, a local ironmaster
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Monroe
1 Apr 1836 from parts of Northampton & Pike counties, named for
President James Monroe; Stroudsburg named for Jacob Stroud, a settler
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Montgomery
10 Sep 1784 from part of Philadelphia county; Norristown named for Isaac
Norris, a landowner
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Montour
3 May 1850 from part of Columbia county, named for Madame Montour, a
woman of French & Indian descent who was prominent in Indian affairs; Danville
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Northampton
11 Mar 1752 from part of Bucks county, named for Northamptonshire,
England, home of Thomas Penn's father-in-law, the Earl of Pomfret; Easton was
named for the Earl's estate
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Northumberland
21 Mar 1772 from parts of Bedford, Berks, Cumberland, Lancaster &
Northampton counties, named for Norhtumberland, England; Sunbury named for a
village near London, England
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Perry
22 Mar 1820 from part of Cumberland county, named for Oliver Hazard
Perry, hero of the Battle of Lake Erie; Bloomfield, the official name, is named
for the clover that was in bloom when it was first laid out; the post office
refers to it as New Bloomfield
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Philadelphia
one of the original counties created in Nov 1682, named to signify
'brotherly love'; Philadelphia
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Pike
26 Mar 1814 from part of Wayne county, named for General Zebulon Pike; Milford
probably named for Milford Haven, Wales
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Potter
26 Mar 1804 from part of Lycoming county, remained attached to Lycoming
until 1814 when it combined with McKean until 1824, fully organized in 1835;
named for General James Potter; Coudersport named for Jean Samuel Couderc, an
Amsterdam banker
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Schuylkill
1 Mar 1811 from parts of Berks & Northampton counties, parts of Columbia
& Luzerne counties added 3 Mar 1818; named for Schuylkill River, Dutch for
'hidden stream'; Pottsville named for the Pott family, early settlers
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Snyder
2 Mar 1855 from part of Union county, named for Governor Simon Snyder;
Middleburg was located on Middle Creek, near the middle of the former Centre Twp
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Somerset
17 Apr 1795 from part of Bedford county, named for Somersershire,
England; Somerset
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Sullivan
15 Mar 1847 from part of Lycoming county, named for Senator Charles C
Sullivan of Butler District; Laporte named for John La Porte, surveyer general
of PA from 1845-1851
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Susquehanna
21 Feb 1810 from part of Luzerne county, remained attached to Luzerne until
1812; named for the Susquehanna River; Montrose combines the French word for
'mountain' with Rose in honor of Dr R H Rose, a prominent citizen
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Tioga
26 Mar 1804 from part of Lycoming county, named for the Tioga River, from an
Indian word meaning 'the forks of a stream'; Wellsboro named for the Wells
family, prominent locally
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Union
22 Mar 1813 from Northumberland county, its name alluding to the federal
union; Lewisburg named for its founder, Ludwig Derr
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Venango
12 Mar 1800 from parts of Allegheny & Lycoming counties, attached to Crawford
Co until 1 Apr 1805; named for the Indian name for French Creek; Franklin is
located at the site of Fort Franklin, both named for Benjamin Franklin
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Warren
12 Mar 1800 from parts of Allegheny & Lycoming counties, attached to
Crawford county until 1805 and Venango county until 1819; named for General
Joseph Warren; Warren
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Washington
28 Mar 1781 from part of Westmoreland county, named in honor of George
Washington; Washington
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Wayne
21 Mar 1798 from part of Northampton county, named for General Anthony Wayne;
Honesdale named for Philip Hone, president of the Delaware & Hudson Canal Co
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Westmoreland
26 Feb 1773 from part of Bedford county, named for a county in England;
Greensburg named for General Nathaniel Greene
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Wyoming
4 Apr 1842 from part of Luzerne county, named for the Wyoming Valley, from an
Indian word meaning 'extensive meadows'; Tunkhannock named for Tunkhannock
Creek, which means 'small stream'
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York
19 Aug 1749 from part of Lancaster county, named for either the Duke of
York, a patron of the Penn family or Yorkshire, England; York