ADAMS

1800

York

Before 1749, see Lancaster Co.

ALLEGHENY

1788

Westmoreland & Washington

Also see "Donation & Depreciation Lands" prior 1788; Bedford prior 1773; Cumberland prior 1771.

ARMSTRONG

1800

Allegheny, Lycoming, Westmoreland

Also see Northumberland prior 1795; Bedford prior 1773; Cumberland prior 1771; "Donation & Depreciation Lands" prior 1788.

BEAVER

1800

Allegheny & Washington

Also see Westmoreland prior 1781; Bedford prior 1773; Cumberland prior 1771; "Donation & Depreciation Lands."

BEDFORD

1771

Cumberland

BERKS

1752

Philadelphia [Co.], Lancaster [Co.], Chester

BLAIR

1846

Huntingdon & Bedford

Also see Cumberland prior 1771.

BRADFORD

1810

Luzerne & Lycoming

Also see Northumberland; Northampton prior 1772.

BUCKS

1682

AN ORIGINAL COUNTY

BUTLER

1800

Allegheny

Also see "Donation & Depreciation Lands" prior 1788.

CAMBRIA

1804

Somerset, Huntingdon, Bedford

Also see Cumberland Co. prior 1771.

CAMERON

1860

Clinton, McKean, Elk, Potter

Also see Lycoming Co. 1795-1840; Northumberland Co. 1785-1795.

CARBON

1843

Northampton & Monroe

CENTRE

1800

Huntingdon, Lycoming, Mifflin, Northumberland

Also see Bedford 1771-1787; Berks 1752-1772; Cumberland 1750-1772.

CHESTER

1682

AN ORIGINAL COUNTY

CLARION

1839

Venango , Armstrong

Also see Lycoming before 1800; Northumberland before 1795.

CLEARFIELD

1804

Huntingdon, Lycoming

Also see Northumberland for NW part prior 1795; Bedford for SE before 1787; Cumberland prior 1771.

CLINTON

1839

Centre, Lycoming

Also see Mifflin Co. 1789-1800; Northumberland 1772-1795; Bedford 1771-1772; Berks 1752-1772, Cumberland 1750-1772.

COLUMBIA

1812/1813

Northumberland

Also see Northampton & Berks prior 1772.

CRAWFORD

1800

Allegheny

Also see Donation Lands info before 1788.

CUMBERLAND

1750

Lancaster

DAUPHIN

1785

Lancaster

DELAWARE

1789

Chester

ELK

1843

Jackson, McKean, Clearfield

Also see Lycoming prior to 1804; Northumberland prior to 1795.

ERIE

1800

Allegheny

Also see Donation Lands info prior to 1788.

FAYETTE

1783

Westmoreland

Also see Bedford prior1773; Cumberland prior 1771.

FOREST

SEE Other

Eastern portion from Jefferson 1848;Western from Venango Co. 1866.

FRANKLIN

1784

Cumberland

Also see Lancaster prior 1750.

FULTON

1850

Bedford

Also see Cumberland prior 1771.

GREENE

1796

Washington Co.

Also see Westmoreland prior 1781; Bedford prior 1773; Cumberland prior 1771.

HUNTINGDON

1787

Bedford

Also see Cumberland prior 1771.

INDIANA

1803

Westmoreland, Lycoming

Also see Bedford; Cumberland; Lycoming; Northumberland prior to 1795.

JEFFERSON

1804

Lycoming

JUNIATA

1831

Mifflin Co.

Also see Cumberland prior 1789.

LACKAWANNA

1878

Luzerne

Also see Northumberland prior to 1786; Northampton prior to 1772.

LANCASTER

1729

Chester

LAWRENCE

1849

Beaver, Mercer

Also see Allegheny prior to 1800; Donation and Depreciation Lands prior to 1788.

LEBANON

1813

Dauphin, Lancaster

LEHIGH

1812

Northampton

Also see Bucks Co. prior to 1752.

LUZERNE

1786

Northumberland

Also see Northampton prior to 1772.

LYCOMING

1795

Northumberland

Also see Northampton and Berks prior to 1772.

MERCER

1800

Allegheny

Also see Donation Lands info prior to 1788.

MIFFLIN CO.

1789

Cumberland, Northumberland

MONROE

1836

Northampton, Pike

Also see Wayne Co.

MONTGOMERY

1784

Philadelphia Co.

MONTOUR

1850

Columbia

Also see Northumberland prior 1813; Berks prior 1772.

McKEAN

1804

Lycoming

Also see Northumberland prior 1795.

NORTHAMPTON

1752

Bucks

NORTHUMBERLAND

1772

Cumberland, Northampton, Lancaster, Berks, Bedford

PERRY

1820

Cumberland

PHILADELPHIA CO.

1682

AN ORIGINAL COUNTY

PIKE

1814

Wayne

Also see Northampton prior to 1798.

POTTER

1804

Lycoming

Also see Northumberland prior 1795

SCHUYLKILL

1811

Berks, Northampton

Also see Columbia, Luzerne, Schuylkill, Northumberland.

SNYDER

1855

Union

Also see Northumberland prior 1813; Berks & Cumberland prior 1772.

SOMERSET

1795

Bedford

Also see Cumberland prior to 1771.

SULLIVAN

1847

Lycoming

Also see Northumberland prior 1795; Northampton prior 1772.

SUSQUEHANNA

1810

Luzerne

Also see Northumberland prior 1772; Northampton.

TIOGA

1804

Lycoming

Also see Northumberland prior 1795.

UNION

1813

Northumberland

Also see Cumberland & Berks prior 1772; PA Line book states: a large number of Union Co. residents resettled in Clarion Co.

VENANGO

1800

Allegheny, Lycoming

Also see Northumberland prior 1795; Donation Lands.

WARREN

1800

Allegheny, Lycoming

Also see Northumberland; Donation Lands.

WASHINGTON CO.

1781

Westmoreland

Also see Bedford prior 1773; Cumberland prior 1771.

WAYNE

1798

Northampton

WESTMORELAND

1773

Bedford

Also see Cumberland prior 1771; PA Line book states: a large no. of Westmoreland resettled in Clarion Co.

WYOMING CO.

1842

Luzerne

Also see Northumberland Co. prior to 1786; Northampton prior to 1772.

YORK

1749

Lancaster

Also see Chester prior to 1729.