|
NAME of COUNTY or TOWNSHIP
|
DATE of CREATION
|
PARENT COUNTY or TOWNSHIP
|
COUNTY SEAT
|
|
ADAMS
|
1800
|
YORK
|
GETTYSBURG
|
|
BERWICK
|
1800
|
|
BUTLER
|
1840
|
FRANKLIN and MENALLEN
|
|
CONEWAGO
|
1801
|
|
CUMBERLAND
|
BEFORE 1800
|
WHILE PART OF YORK COUNTY
|
|
FRANKLIN
|
BEFORE 1800
|
WHILE PART OF YORK COUNTY
|
|
FREEDOM
|
1838
|
LIBERTY
|
|
GERMANY
|
BEFORE 1800
|
WHILE PART OF YORK COUNTY
|
|
HALIFAX
|
1804
|
UPPER PAXTON and MIDDLE PAXTON
|
|
HAMILTON
|
1810
|
BERWICK
|
|
HAMILTONBAN
|
BEFORE 1800
|
WHILE PART OF YORK COUNTY
|
|
HIGHLAND
|
1863
|
CUMBERLAND, FRANKLIN & HAMILTONBAN
|
|
HUNTINGDON
|
BEFORE 1800
|
|
LATIMORE
|
1807
|
MONAGHAN, HUNTINGDON & WARRINGTON
|
|
LIBERTY
|
1800
|
HAMILTONBAN
|
|
MENALLEN
|
1749
|
YORK COUNTY
|
|
MT. JOY
|
BEFORE 1800
|
YORK COUNTY
|
|
MT. PLEASANT
|
BEFORE 1800
|
YORK COUNTY
|
|
OXFORD
|
1847
|
BERWICK
|
|
READING
|
BEFORE 1800
|
YORK COUNTY
|
|
STRABAN
|
1746
|
WHILE PART OF
|
|
TYRONE
|
1749
|
YORK COUNTY
|
|
UNION
|
1841
|
CONEWAGO, GERMANY & MT. PLEASANT
|
|
ALLEGHENY
|
1788
|
WESTMORELAND & WASHINGTON
|
PITTSBURGH
|
|
ALEPPO
|
1876
|
KILBUCK
|
|
BALDWIN
|
1844
|
UPPER & LOWER ST.CLAIR, JEFFERSON & MILTON
|
|
COLLIER
|
1875
|
|
CRESCENT
|
1855
|
MOON
|
|
EAST DEER
|
1836
|
DEER
|
|
ELIZABETH
|
1788
|
|
FAWN
|
1858 (or 1857)
|
EAST DEER
|
|
FINDLAY
|
1822
|
MOON
|
|
FORWARD
|
1869
|
ELIZABETH
|
|
FRAZER
|
1920
|
|
HAMPTON
|
1861
|
McCANDLESS, WEST DEER & INDIANA
|
|
HARMAR
|
1875
|
INDIANA
|
|
HARRISON
|
1863
|
FAWN
|
|
INDIANA
|
1805
|
PITT
|
|
KENNEDY
|
1903
|
STOWE
|
|
KILBUCK
|
1869
|
OHIO
|
|
LEET
|
1869
|
SEWICKLEY
|
|
MARSHALL
|
1863
|
FRANKLIN
|
|
MOON
|
1790 (or 1788)
|
|
MT. LEBANON
|
|
SCOTT
|
|
McCANDLESS
|
1851
|
PINE
|
|
NEVILLE
|
1865 (or 1845)
|
MOON, FAYETTE, OHIO & ROBINSON
|
|
NORTH FAYETTE
|
1842
|
FAYETTE WHICH WAS INCORPORATED IN 1790
|
|
NORTH VERSAILLES
|
1869
|
VERSAILLES WHICH WAS INCORPORATED IN 1788
|
|
O'HARA
|
1875
|
INDIANA
|
|
OHIO
|
1803 (or 1796)
|
PITT
|
|
PENN HILLS
|
1850
|
WILKINS CALLED PENN TOWNSHIP UNTIL 1958
|
|
PINE
|
1796
|
|
RESERVE
|
1835
|
ROSS
|
|
RICHLAND
|
1862
|
WEST DEER & PINE
|
|
ROBINSON
|
1801 (or 1799)
|
FAYETTE
|
|
ROSS
|
1809
|
|
SCOTT
|
1861
|
UPPER ST.CLAIR
|
|
SHALER
|
1847
|
ORIGINALLY KNOWN AS MARION
|
|
SNOWDEN
|
1845
|
UPPER ST.CLAIR & JEFFERSON
|
|
SOUTH FAYETTE
|
1842
|
FAYETTE
|
|
SOUTH VERSAILLES
|
1869
|
VERSAILLES WHICH WAS INCORPORATED IN 1788
|
|
SPRINGDALE
|
1875
|
PITT
|
|
STOWE
|
1869
|
ROBINSON
|
|
UPPER ST.CLAIR
|
1806
|
ST.CLAIR WHICH WAS INCORPORATED IN 1788
|
|
WEST DEER
|
1836
|
DEER TOWNSHIP WHICH WAS INCORPORATED IN 1796
|
|
WILKINS
|
1821
|
PITT
|
|
ARMSTRONG
|
1800
|
ALLEGHENY, LYCOMING & WESTMORELAND
|
KITTANNING
|
|
BETHEL
|
1878
|
ALLEGHENY, PARKS & GILPIN
|
|
BOGGS
|
1878
|
PINE
|
|
BRADYS BEND
|
1845
|
SUGARCREEK
|
|
BURRELL
|
1855
|
KITTANNING, KISKIMINETAS & PLUMCREEK
|
|
CADOGEN
|
1922
|
NORTH BUFFALO
|
|
COWANSHANNOCK
|
1848
|
KITTANNING, PLUMCREEK & WAYNE
|
|
EAST FRANKLIN
|
1868
|
FRANKLIN
|
|
GILPIN
|
1878
|
ALLEGHENY
|
|
HOVEY
|
1870
|
PERRY
|
|
KISKIMINETAS
|
1831 (or 1832)
|
ALLEGHENY
|
|
KITTANNING
|
1807
|
|
MADISON
|
1837
|
TOBY & REDBANK
|
|
MAHONING
|
1851
|
MADISON, PINE, WAYNE & REDBANK
|
|
MANOR
|
1849
|
BUFFALO
|
|
NORTH BUFFALO
|
1847
|
BUFFALO
|
|
PARKS
|
1878
|
ALLEGHENY
|
|
PERRY
|
1845
|
SUGARCREEK
|
|
PINE
|
1836
|
KITTANNING; ORIGINALLY CALLED PINECREEK
|
|
PLUMCREEK
|
1809 (or 1810)
|
|
RAYBURN
|
1890
|
VALLEY
|
|
REDBANK
|
1806
|
|
SOUTH BEND
|
1867
|
KISKIMINETAS & PLUMCREEK
|
|
SOUTH BUFFALO
|
1847
|
BUFFALO
|
|
SUGARCREEK
|
1806
|
|
VALLEY
|
1855
|
COWANSHANNOCK
|
|
WASHINGTON
|
1858
|
SUGARCREEK
|
|
WAYNE
|
1821
|
PLUMCREEK
|
|
WEST FRANKLIN
|
1868
|
FRANKLIN
|
|
BEAVER
|
1800
|
ALLEGHENY & WASHINGTON
|
BEAVER
|
|
BOROUGH
|
1804
|
SOUTH BEAVER
|
|
BRIGHTON
|
1816
|
SOUTH BEAVER & OHIO
|
|
CENTER
|
1910
|
MOON
|
|
CHIPPEWA
|
1816
|
SOUTH BEAVER & OHIO
|
|
DARLINGTON
|
1847
|
LITTLE BEAVER
|
|
DAUGHERTY
|
1894
|
PULASKI
|
|
FRANKLIN
|
1850
|
NORTH SEWICKLEY
|
|
GREEN
|
1812
|
HANOVER
|
|
HANOVER
|
1786
|
WHILE PART OF WASHINGTON COUNTY
|
|
HARMONY
|
1851
|
ECONOMY
|
|
HOPEWELL
|
1812
|
HANOVER & MOON
|
|
INDEPENDENCE
|
1848 (or 1849)
|
HOPEWELL
|
|
MARION
|
1845
|
NORTH SEWICKLEY
|
|
NEW SEWICKLEY
|
1801
|
SEWICKLEY
|
|
NORTH SEWICKLEY
|
1801
|
SEWICKLEY
|
| PATTERSON
|
1845
|
BRIGHTON
|
|
POTTER
|
SINCE 1910
|
MOON & RACCOON
|
|
PULASKI
|
1854
|
SEWICKLEY
|
|
RACCOON
|
1833
|
MOON & RACCOON
|
|
ROCHESTER
|
1840
|
NEW SEWICKLEY
|
|
SOUTH BEAVER
|
ca. 1800
|
|
WHITE
|
1887
|
CHIPPEWA
|
|
BEDFORD
|
1771
|
CUMBERLAND
|
BEDFORD
|
|
BEDFORD
|
1768
|
WHILE PART OF CUMBERLAND COUNTY
|
|
BLOOMFIELD
|
1876
|
|
BROAD TOP
|
1838
|
HOPEWELL
|
|
COLERAIN
|
BEFORE 1771
|
WHILE PART OF CUMBERLAND COUNTY
|
|
CUMBERLAND VALLEY
|
BEFORE 1771
|
WHILE PART OF CUMBERLAND COUNTY
|
|
EAST PROVIDENCE
|
1844
|
PROVIDENCE
|
|
EAST ST.CLAIR
|
1875
|
ST.CLAIR
|
|
HARRISON
|
1840
|
NAPIER
|
|
HOPEWELL
|
1773
|
BARREE
|
|
JUNIATA
|
1853
|
HARRISON & NAPIER
|
|
KIMMEL
|
1889
|
KING & UNION
|
|
KING
|
1876
|
UNION
|
|
LIBERTY
|
1845
|
HOPEWELL
|
|
LINCOLN
|
1899
|
UNION
|
|
LONDONDERRY
|
1785
|
CUMBERLAND
|
|
MANN
|
1876
|
SOUTHAMPTON
|
|
MONROE
|
1840
|
PROVIDENCE
|
|
NAPIER
|
1812
|
BEDFORD & ST.CLAIR
|
|
SNAKE SPRING
|
1857
|
COLERAIN & WEST PROVIDENCE
|
|
SOUTHAMPTON
|
ca. 1799
|
|
SOUTH WOODBURY
|
1838
|
WOODBURY
|
|
UNION
|
1834
|
ST.CLAIR & GREENFIELD
|
|
WEST PROVIDENCE
|
1844
|
PROVIDENCE
|
|
WEST ST.CLAIR
|
1875
|
ST.CLAIR
|
|
WOODBURY
|
1785
|
|
BERKS
|
1752
|
BUCKS, LANCASTER & PHILADELPHIA
|
READING
|
|
ALBANY
|
1762
|
|
ALSACE
|
1745 (or 1744)
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
AMITY
|
1744
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
BERN
|
1738
|
WHILE PART OF LANCASTER COUNTY
|
|
BETHEL
|
1739
|
WHILE PART OF LANCASTER COUNTY
|
|
BRECKNOCK
|
1740
|
WHILE PART OF LANCASTER COUNTY
|
|
CAERNARVON
|
1729
|
WHILE PART OF LANCASTER COUNTY
|
|
CENTER
|
1843
|
BERN, UPPER BERN & PENN
|
|
COLEBROOKDALE
|
1741
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
CUMRU
|
1737
|
WHILE PART OF LANCASTER COUNTY
|
|
DISTRICT
|
1759
|
OLEY & COLEBROOKDALE
|
|
DOUGLASS
|
1736
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
EARL
|
1781
|
OLEY
|
|
EXETER
|
1741
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
GREENWICH
|
1755
|
ALBANY
|
|
HEIDELBERG
|
1734
|
WHILE PART OF LANCASTER COUNTY
|
|
HEREFORD
|
1753
|
COLEBROOKDALE
|
|
JEFFERSON
|
1852 (or 1851)
|
UPPER TULPEHOCKEN
|
|
LONGSWAMP
|
1761
|
ROCKLAND
|
|
LOWER ALSACE
|
1888
|
ALSACE
|
|
LOWER HEIDELBERG
|
1842
|
HEIDELBERG
|
|
MAIDENCREEK
|
1746 (or 1748)
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
MARION
|
1844 (or 1843)
|
TULPEHOCKEN & HEIDELBERG
|
|
MAXATAWNY
|
1742
|
WHILE PART OF PHILADELPHIA COUNTY
|
|
MUHLENBERG
|
1851
|
ALSACE
|
|
NORTH HEIDELBERG
|
1845
|
HEIDELBERG
|