Washington County is a county located in the U.S. state of Illinois. As of 2000, the population was 15,148. Its county seat is Nashville.
History
Washington County was formed in 1818. It was named for George Washington.
| Washington County Illinois Cities/Towns -
Addieville, Ashley, Beaucoup, Covington, Du Bois, Hoyleton, Irvington, Johannisburg, Lively Grove, Nashville (County Seat), New Minden, Oakdale, Okawville, Plum Hill, Radom, Richview, Venedy |
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Your Ad Here Washington County is a county located in the U.S. state of Illinois. As of 2000, the population was 15,148. Its county seat is Nashville. History Washington County was formed in 1818. It was named for George Washington. |