Jefferson County

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Department of Geography and Geography at Western Kentucky University

    Jefferson County was formed in May of 1780 and is located in the Outer Bluegrass region along the Ohio River.  The county is 386 square miles in size and was named after Thomas Jefferson.  The county seat is Louisville, which is the biggest city in the state of Kentucky.  Many of the first settlers in the county came from Virginia.  Until the end of the Second World War, Jefferson County was mainly agricultural.  However, after the war urbanization began to take over much of the prime farmland of the county.  Jefferson County is now the most urbanized county in Kentucky.

(The Kentucky Encyclopedia 1992)

    County Seat -   Louisville                       

Populations (2000 US Census):	Jefferson County	Louisville
	693,604	256,231