Buchanan County, county in Virginia, United States. As of 2020 county had an estimated population of 86,530 inhabitants. The county was created 164 years ago in 1858. Its county seat is "Grundy".
Cities, Towns, Neighborhoods & Other Populated Places in Buchanan County.
|Saint Joseph||County seat of Buchanan County, Missouri, United States||Buchanan||74,074|
|Sparta||City in Christian County, Missouri||Buchanan||2,076|