When Louisville and Jefferson County merged in 2003 two Southend communities became neighborhoods of the city of Louisville. Both Fairdale and Okolona were considered census-designated places (CDP) and were considered parts of outlaying Jefferson County. Both areas were settled in the 18th and 19th centuries.
Fairdale was formerly swampland before being drained and settled in 1794. The elevation and flood plain has caused the area to historically being prone to flooding; the most recent was in 1997. It is home to Fairdale High School. One of the biggest events in the area is the annual Fairdale Fair.
Okolona started as a farming community in the 18th century. Like Fairdale, it also sits on a low elevation. The proximity of the neighborhood to the major roads of Outer Loop and Preston Highway allowed for Okolona to become a major economic area for the Southend of Louisville. It is home to General Electric's Appliance Park since 1953. It is also home to the largest shopping center in the Southend, including Jefferson Mall.
While both communities have their own distinct histories, since incorporation with Louisville they have had much more support to grow and thrive.