2019–20 United Counties League Division One

At the end of the 2018–19 season, the following teams left the division:
 * Promoted to Step 5


 * Transferred within Step 6


 * Relegated to Step 7

The remaining 14 teams, together with the following, form Division One for season 2019–20:
 * Relegated from Step 5


 * Transferred within Step 6