
| Pennsylvania County Formation years | ||||||||||||||
| 1673 | 1674 | 1678 | 1680 | 1681 | 1682 | 1687 | 1704 | 1729 | 1749 | 1750 | 1751 | 1752 | 1771 | 1772 |
| 1773 | 1774 | 1775 | 1776 | 1779 | 1781 | 1782 | 1783 | 1784 | 1785 | 1786 | 1787 | 1788 | 1789 | 1792 |
| 1795 | 1796 | 1798 | 1800 | 1802 | 1803 | 1804 | 1805 | 1806 | 1807 | 1808 | 1810 | 1811 | 1812 | 1813 |
| 1814 | 1815 | 1816 | 1818 | 1819 | 1820 | 1821 | 1822 | 1823 | 1826 | 1830 | 1831 | 1834 | 1835 | 1836 |
| 1839 | 1840 | 1843 | 1845 | 1846 | 1847 | 1848 | 1849 | 1850 | 1853 | 1854 | 1855 | 1857 | 1860 | 1861 |
| 1865 | 1866 | 1867 | 1868 | 1870 | 1878 | |||||||||
| Pennsylvania Census Year with Modern Map overlayed: | ||||||||||||||
| 1790 | 1800 | 1810 | 1820 | 1830 | 1840 | 1850 | 1860 | 1870 | 1880-1930 | |||||
| Pennsylvania Map Abbreviations | ||||
|---|---|---|---|---|
| unorg. = unorganized g. = gained w. = with fr. = from atmt. = attachment exch = exchanged nca.= non county area ch. = changed Ad - Adams Al - Allegheny Ar - Armstrong Bea - Beaver Bed - Bedford Ber - Berks Bl - Blair |
Br - Bradford Buc - Bucks But - Butler Car - Carbon Cbr - Cambria Cen - Centre Ch - Chester Cla - Clarion Cle - Clearfield Cli - Clinton Co - Columbia Cr - Crawford Crn - Cameron Cu - Cumberland Da - Dauphin |
De - Delaware Elk - Elk Er - Erie Fa - Fayette Fo - Forest Fr - Franklin Fu - Fulton Gr - Greene Hu - Huntingdon In - Indiana Je - Jefferson Ju - Juniata Lac - Lackawanna Lan - Lancaster Law - Lawrence |
Leb - Lebanon Leh - Lehigh Lu - Luzerne Ly - Lycoming McK - McKean Me - Mercer Mi - Mifflin Mro - Monroe Mtr - Montour Mty - Montgomery Nhn - Northampton Nud - Northumberland Pe - Perry Ph - Philadelphia Pi - Pike |
Po - Potter Sc - Schuylkill Sn - Snyder So - Somerset Sul - Sullivan Sus - Susquehanna Ti - Tioga Un - Union Ve - Venango War - Warren Was - Washington Way - Wayne We - Westmoreland Wy - Wyoming Yor - York |
These are scanned from the original copies so you can see the Pennsylvania and Pennsylvania counties as our ancestors saw them over a hundred years ago. Some Pennsylvania maps years (not all) have cities, railroads, P.O. locations, township outlines and other features useful to the avid genealogist in Pennsylvania.
Images are between 1 meg and 5 megs in size so allow a few moments to load if you are using a dial-up connection. Disclaimer: All Pennsylvania maps are free to use for your own genealogical purposes and may not be reproduced for resale or distribution.
Source: David Rumsey Historical Map Collection
Pennsylvania Maps
Maps, Atlases & Gazetteers - Maps are an invaluable part of family history research, especially if you live far from where your ancestor lived. Because political boundaries often changed, historic maps are critical in helping you discover the precise location of your ancestor's hometown, what land they owned, who their neighbors were, and more.