The 2021 County Championship will be divided into three groups of six teams, starting on Thursday 8 April.
- Group 1: Derbyshire, Durham, Essex, Nottinghamshire, Warwickshire, Worcestershire
- Group 2: Gloucestershire, Hampshire, Leicestershire, Middlesex, Somerset, Surrey
- Group 3: Glamorgan, Kent, Lancashire, Northamptonshire, Sussex, Yorkshire
Thursday, April 8
Group 1: Essex v Worcestershire (Chelmsford), Nottinghamshire v Durham (Trent Bridge), Warwickshire v Derbyshire (Edgbaston)
Group 2: Middlesex v Somerset (Lord’s), Leicestershire v Hampshire (Leicester), Gloucestershire v Surrey (Bristol)
Group 3: Northamptonshire v Kent (Northampton), Sussex v Lancashire (Hove), Yorkshire v Glamorgan (Headingley)
Thursday, April 15
Group 1: Derbyshire v Worcestershire (Derby), Essex v Durham (Chelmsford), Nottinghamshire v Warwickshire (Trent Bridge)
Group 2: Hampshire v Middlesex (Southampton), Somerset v Gloucestershire (Taunton), Surrey v Leicestershire (The Oval)
Group 3: Lancashire v Northamptonshire (Old Trafford), Kent v Yorkshire (Canterbury), Glamorgan v Sussex (Cardiff)
Thursday, April 22
Group 1: Durham v Derbyshire (Chester-le-Street), Worcestershire v Nottinghamshire (Worcester), Warwickshire v Essex (Edgbaston)
Group 2: Hampshire v Gloucestershire (Southampton), Middlesex v Surrey (Lord’s), Leicestershire v Somerset (Leicester)
Group 3: Sussex v Yorkshire (Hove), Kent v Lancashire (Canterbury), Northamptonshire v Glamorgan (Northampton)
Thursday, April 29
Group 1: Derbyshire v Nottinghamshire (Derby), Worcestershire v Essex (Worcester), Durham v Warwickshire (Chester-le-Street)
Group 2: Gloucestershire v Leicestershire (Bristol), Somerset v Middlesex (Taunton), Surrey v Hampshire (The Oval)
Group 3: Lancashire v Sussex (Old Trafford), Glamorgan v Kent (Cardiff), Yorkshire v Northamptonshire (Headingley)
Thursday, May 6
Group 1: Warwickshire v Worcestershire (Edgbaston), Nottinghamshire v Essex (Trent Bridge),
Group 2: Leicestershire v Surrey (Leicester), Middlesex v Gloucestershire (Lord’s), Hampshire v Somerset (Southampton)
Group 3: Yorkshire v Kent (Headingley), Lancashire v Glamorgan (Old Trafford), Northamptonshire v Sussex (Northampton)
Thursday, May 13
Group 1: Essex v Derbyshire (Chelmsford), Durham v Worcestershire (Chester-le-Street)
Group 2: Middlesex v Hampshire (Lord’s), Somerset v Surrey (Taunton)
Group 3: Sussex v Kent (Hove), Glamorgan v Yorkshire (Cardiff)
Thursday, May 20
Group 1: Nottinghamshire v Worcestershire (Trent Bridge), Essex v Warwickshire (Chelmsford), Derbyshire v Durham (Derby)
Group 2: Hampshire v Leicestershire (Southampton), Gloucestershire v Somerset (Bristol), Surrey v Middlesex (The Oval)
Group 3: Northamptonshire v Lancashire (Northampton) Kent v Glamorgan (Canterbury)
Thursday, May 27
Group 1: Durham v Essex (Chester-le-Street), Warwickshire v Nottinghamshire (Edgbaston), Worcestershire v Derbyshire (Worcester)
Group 2: Surrey v Gloucestershire (Guildford), Leicestershire v Middlesex (Leicester)
Group 3: Lancashire v Yorkshire (Old Trafford), Sussex v Northamptonshire (Hove)
Thursday, June 3
Group 1: Worcestershire v Durham (Worcester), Essex v Nottinghamshire (Chelmsford), Derbyshire v Warwickshire (Derby)
Group 2: Somerset v Hampshire (Taunton), Leicestershire v Gloucestershire (Leicester)
Group 3: Yorkshire v Sussex (Headingley), Kent v Northamptonshire (Canterbury), Glamorgan v Lancashire (TBC)
Sunday, July 4
Group 1: Nottinghamshire v Derbyshire (Trent Bridge), Warwickshire v Durham (Edgbaston)
Group 2: Gloucestershire v Middlesex (Cheltenham), Hampshire v Surrey (Southampton), Somerset v Leicestershire (Taunton)
Group 3: Lancashire v Kent (Old Trafford), Northamptonshire v Yorkshire (Northampton), Sussex v Glamorgan (Hove)
Sunday, July 11
Group 1: Derbyshire v Essex (Chesterfield), Durham v Nottinghamshire (Chester-le-Street), Worcestershire v Warwickshire (Worcester)
Group 2: Gloucestershire v Hampshire (Cheltenham), Middlesex v Leicestershire (Merchant Taylors), Surrey v Somerset (The Oval)
Group 3: Yorkshire v Lancashire (Scarborough), Glamorgan v Northamptonshire (Cardiff), Kent v Sussex (Beckenham)
Division stage dates
Round 1: August 30 – September 2
Round 2: September 5-8
Round 3: September 12-15
Round 4: September 21-24
Bob Willis Trophy Final: September 27-October 1
