Staffordshire 1 was a tier 9 English Rugby Union league with teams from Staffordshire taking part. Promoted teams moved up to Midlands 5 West (North) and relegated teams dropped to Staffordshire 2 until that division was cancelled at the end of the 2003–04 season. Staffordshire 1 was itself cancelled one year later at the end of the 2004–05 campaign, with the majority of teams transferred into the newly introduced Midlands 6 West (North).
The original Staffordshire 1 was a tier 8 league with promotion up to Staffordshire/Warwickshire 1 and relegation down to Staffordshire 2. At the end of the 1991–92 season the merging of all Staffordshire and Warwickshire leagues meant that Staffordshire 1 was discontinued for the years that these leagues were active[b].
Restructuring of the Staffordshire/Warwickshire leagues[f] ahead of the 1996–97 season saw the reintroduction of a single Staffordshire league, which along with its counterpart Warwickshire was a tier 10 league. Promotion was to Staffordshire/Warwickshire 1 and there was no relegation until the reintroduction of Staffordshire 2 at the end of the 1998–99 season.
At the end of the 1998–99 season Staffordshire was split into two divisions, with Staffordshire 1 sitting at level 10 of the league system. Promotion was to the newly introduced Midlands 4 West (North)[h] while relegation was to the reintroduced Staffordshire 2.
^The remerging of Staffordshire 1 and Staffordshire 2 into a single Staffordshire 1 division meant that champions were not promoted.
^No relegation due to the cancellation of Staffordshire 2 at the end of the season.
^The cancellation of Staffordshire 1 at the end of the season, meant that champions were promoted two levels up into the new look Midlands 5 West (North).
^Runners up and the remaining 10 teams were transferred into the new look Midlands 6 West (North) at the end of the season.
^One of Uttoxeter's titles was won when league was single division known as Staffordshire.
^One of Wednesbury's titles was won when league was single division known as Staffordshire.
^ title was won when league was single division known as Staffordshire.