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CHRONOLOGY OF COUNTIES

 

Counties

From What Formed

When Formed

Population in 1800
1 Chester Original 1682 32,039
2 Bucks Original 1682 27,496
3 Philadelphia Original 1682 81,009
4 Lancaster Chester 10 May 1729 43,043
5 York Lancaster 19 August 1749 25,643
6 Cumberland Lancaster 27 January 1750 25,386
7 Berks Philadelphia, Bucks, Lancaster 11 March 1752 32,497
8 Northampton Bucks 11 March 1752 30,062
9 Bedford Cumberland 9 March 1771 12,039
10 Northumberland Lancaster, Cumberland, Berks, Bedford, and Northampton Counties 27 March 1772 27,796
11 Westmoreland Bedford 26 February 1773 22,726
12 Washington Westmoreland 28 March 1781 28,293
13 Fayette Westmoreland 26 September 1783 20, 067
14 Franklin Cumberland 9 September 1784 19,638
15 Montgomery Philadelphia 10 September 1784 24,150
16 Dauphin Lancaster 4 march 1785 22,270
17 Luzerne Northumberland 25 September 1786 12,839
18 Huntingdon Bedford 20 September 1787 13,008
19 Allegheny Westmoreland and Washington 24 September 1788 15,087
20 Delaware Chester 26 September 1787 12,809
21 Mifflin Cumberland & Northumberland 19 September 1789 13,809
22 Somerset Bedford 17 April 1795 10,188
23 Lycoming Northumberland 13 April 1796 5,414
24 Greene Washington 9 February 1796 8,605
25 Wayne Northampton 21 March 1798 2,562
26 Adams York 22 January 1800 13,172
27 Centre Mifflin, Northumberland, Lycoming, & Huntingdon 13 February 1800 2,705
28 Armstrong Allegheny, Westmoreland, and Lycoming 12 March 1800 2,399
29 Butler Allegheny 12 March 1800 3,916
30 Beaver Allegheny and Washington 12 March 1800 5,776
31 Crawford Allegheny 12 March 1800 2,346
32 Erie Allegheny 12 March 1800 -
33 Mercer Allegheny 12 March 1800 3,228
34 Venango Allegheny and Lycoming 12 March 1800 1,130
35 Warren Allegheny and Lycoming 12 March 1800 230
36 Indiana Westmoreland and Lycoming 30 March 1803  
37 Jefferson Lycoming 26 March 1804  
38 McKean Lycoming 20 March 1804  
39 Potter Lycoming 26 March 1804  
40 Tioga Lycoming 26 March 1804  
41 Cambria Huntingdon, Somerset, and Bedford 20 March 1804  
42 Clearfield Lycoming and Northumberland 26 March 1804  
43 Bradford Luzerne and Lycoming 21 February 1810  
44 Susquehanna Luzerne 21 February 1810  
45 Schuylkill Berks and Northampton 11 March 1811  
46 Lehigh Northampton 6 March 1812  
47 Lebanon Dauphin and Lancaster 16 February 1813  
48 Columbia Northumberland 22 March 1813  
49 Union Northumberland 22 March 1813  
50 Pike Wayne 26 March 1814  
51 Perry Cumberland 22 March 1826  
52 Juniata Mifflin 2 March 1831  
53 Monroe Northampton and Pike 1 April 1836  
54 Clarion Venango and Armstrong 11 March 1839  
55 Clinton Lycoming and Centre Counties 21 June 1839  
56 Wyoming Luzerne 4 April 1842  
57 Carbon Northampton and Monroe 13 March 1843  
58 Elk Jefferson, Clearfield, & McKean 18 April 1843  
59 Blair Huntingdon and Bedford 26 February 1846  
60 Sullivan Lycoming 15 March 1847  
61 Forest Jefferson & Venango 11 April 1848  
62 Lawrence Beaver and Mercer Counties 20 March 1849  
63 Fulton Bedford County 19 April 1850  
64 Montour Columbia County 03 May 1850  
65 Snyder Union County 02 March 1855  
66 Cameron Clinton, Elk, McKean, and Potter Counties 29 March 1860  
67 Lackawanna Luzerne 13 August 1878  


Map showing the evolution of the counties, geographically

Page last updated:May 30, 2018

 

 

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Nancy C. Janyszeski All rights reserved.     Information submitted remains, to the extent the laws allows, the property of the submitter who by submitting it agrees that it may be freely copied, but never sold or used in a commercial venture without the knowledge and permission of the rightful owners.   

This website was created as a guide to the history and genealogy of Bucks County Pennsylvania. All efforts have been made to be accurate and to document sources. Some of the material has been contributed and published, with permission, in good faith. All effort has been made to be accurate as possible, and to refer to sources used. If you see an error, please let me know. This website was designed to be informative, a guide to Bucks County history and genealogical research, and hopefully fun. I can't guarantee that all the data is accurate.

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