Lafayette County may refer to several locations in the United States, each named in honor of the

Marquis de Lafayette Marie-Joseph Paul Yves Roch Gilbert du Motier, Marquis de La Fayette (6 September 1757 – 20 May 1834), known in the United States as Lafayette (, ), was a French aristocrat, freemason and military officer who fought in the American Revolutio ...

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Lafayette County, Arkansas Lafayette County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 7,645, making it the third-least populous county in Arkansas. The county seat is Lewisville. Lafayette County was formed on October ...

* Lafayette County, Florida *

Lafayette County, Mississippi Lafayette County is a county in the U.S. state of Mississippi. At the 2010 census, the population was 47,351. Its county seat is Oxford. The local pronunciation of the name is "la-FAY-et." The county's name honors Marquis de Lafayette, a French ...

Lafayette County, Missouri Lafayette County is a county in the western portion of Missouri, part of the Kansas City metropolitan area. As of the 2010 census, the population was 33,381. Its county seat is Lexington. The county was organized November 16, 1820 from Cooper ...

Lafayette County, Wisconsin Lafayette County, sometimes spelled La Fayette County, is a county located in the U.S. state of Wisconsin. It was part of the Wisconsin Territory at the time of its founding. As of the 2020 census, the population was 16,611. Its county seat i ...

Lafayette Parish, Louisiana Lafayette Parish (french: Paroisse de Lafayette) is a parish located in the U.S. state of Louisiana. According to the 2020 U.S. census, the parish had a population of 241,753, up from 221,578 at the 2010 United States census. The parish seat is ...

See also