Following Preston North End's promotion to the Sky Bet Championship on Sunday, the League One line up is complete for next season.
Wigan Athletic, Millwall and Blackpool join Oldham Athletic in Sky Bet League One next season after relegation from the second tier last season.
Burton Albion, Shrewsbury, Bury and Southend were promoted from Sky Bet League Two and they make up a very northern League One next season.
Here are the teams:
Barnsley
Blackpool
Bradford City
Burton Albion
Bury
Chesterfield
Colchester United
Coventry City
Crewe Alexandra
Doncaster Rovers
Fleetwood Town
Gillingham
Millwall
Oldham Athletic
Peterborough United
Port Vale
Rochdale
Scunthorpe United
Sheffield United
Shrewsbury Town
Southend United
Swindon Town
Walsall
Wigan Athletic
The Sky Bet League One fixture list for the 2015/16 campaign will be revealed on Wednesday, June 17.
Oldham Athletic's fixtures will be revealed first and exclusively right here on oldhamathletic.co.uk.