For the first nine seasons of its existence the league ran with four divisions, but since 1992 there have been three divisions. Teams play each other twice a season, and there is promotion and relegation between each division at the end of the season. As a
Regional Feeder League, one Premier Division club per season can gain promotion to Step 6 (usually the
Northern Counties East League), but the applying club must finish inside the top five at the end of the season and achieve the required ground grading standard. There are three feeder leagues sitting below the County Senior League in the pyramid - the
Doncaster Saturday League,
Huddersfield & District League and Wakefield & District League, although promotion and relegation between the competitions is rare.
Reserve teams of clubs higher up the league pyramid play in the league, but only a maximum of three are allowed to play in the Premier Division. ==Current member clubs (2025–26)==