Oregon County Formation years | ||||||||||||||
1843 | 1844 | 1845 | 1846 | 1847 | 1849 | 1851 | 1852 | 1853 | 1854 | 1855 | 1856 | 1859 | 1862 | 1864 |
1874 | 1882 | 1885 | 1887 | 1889 | 1893 | 1899 | 1908 | 1914 | 1916 | 1925 | 1850 | 1975 |
Oregon Map Abbreviations | ||||
---|---|---|---|---|
unorg. = unorganized g. = gained w. = with fr. = from atmt. = attachment exch = exchanged nca.= non county area ch. = changed |
Ba - Baker Co. Be - Benton Co. Cms - Clackamas Co. Col - Columbia Co. Coo - Coos Co. Cr - Crook Co. Csp - Clatsop Co. Cu - Curry Co. De - Deschutes Co. |
Do - Douglas Co. Gi - Gilliam Co. Gr - Grant Co. Ha - Harney Co. HR - Hood River Co. Ja - Jackson Co. Je - Jefferson Co. Jo - Josephine Co. Kl - Klamath Co. |
Lak - Lake Co. Lan - Lane Co. Lcn - Lincoln Co. Lnn - Linn Co. Mal - Malheur Co. Mar - Marion Co. Mo - Morrow Co. Mu - Multnomah Co. Po - Polk Co. |
Sh - Sherman Co. Ti - Tillamook Co. Uma - Umatilla Co. Un - Union Co. Wal - Wallowa Co. Wco - Wasco Co. Wh - Wheeler Co. Wtn - Washington Co. Ya - Yamhill Co. |