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Vermont County Formation years
1764 1766 1767 1768 1770 1772 1775 1777 1779 1781 1782 1783 1785 1786 1787
1790 1792 1794 1796 1797 1798 1799 1800 1801 1802 1805 1806 1810 1811 1814
1821 1822 1823 1824 1825 1828 1829 1835 1836 1837 1839 1844 1847 1851 1856
1858 1859 1891 1895                      
Vermont Census Year with Modern Map overlayed:
1790 1810 1820 1830 1840 1850 1860-1890 1900-1930          
Vermont Map Abbreviations
unorg. = unorganized
g. = gained
w. = with
fr. = from
atmt. = attachment
exch = exchanged
nca.= non county area
ch. = changed
Ad  - Addison
Ben - Bennington
Cal - Caledonia
Chi - Chittenden
Es  - Essex
Fr  - Franklin
GI  - Grand Isle
La  - Lamoille
Ora - Orange
Orl - Orleans
Ru  - Rutland
Wa  - Washington
Wdm - Windham
Wdr - Windsor