arizona
Arizona County Formation years
1852 1854 1855 1860 1861 1862 1863 1864 1865 1866 1871 1873 1875 1877 1879
1881 1889 1891 1895 1899 1909 1983                
Arizona Map Abbreviations
unorg. = unorganized
g. = gained
w. = with
fr. = from
atmt. = attachment
exch = exchanged
nca.= non county area
ch. = changed
Ap - Apache
Cch - Cochise
Ccn - Cococino
Gi - Gila
Gra - Graham
Gre - Greenlee
LP - La Paz
Ma - Maricopa
Mo - Mohave
Na - Navajo
Pim - Pima
Pin - Pinal
SC - Santa Cruz
Ya - Yavapai
Yu - Yuma