It covers most of the Kansai region, as well as the prefectures of Hyōgo, Kyōto, Nara, Osaka, Shiga and Wakayama.

Mie, usually considered part of Kansai in non-football usage, but is allotted to the Tōkai Adult Soccer League.

The first tournament had eight clubs, these were: - The tournament was played in a single division, until a second division commenced in 2005, this introduced promotion and relegation at this regional level.

In 2005, the name was changed to "Kansai Soccer League" and scoreboards are required to be installed at every venue (if the stadium does not have this facility, the league will lend a portable scoreboard).

"SiMSEED" (formerly SiMS), which manages official records and posts information online, was jointly developed with NTT West Japan-Hyogo (formerly NTT Marketing Act Hyogo).