Northamptonshire will welcome Durham to the County Ground to get their 2014 season under way.
The county champions come to Wantage Road on Sunday, April 13, as the County open their first top flight campaign since 2004.
Stephen Peters’ side face a tricky start to the year with a trip to Headingley in the second week followed by the visit of Lancashire before the end of April.
The Natwest t20, which the County will be defending, starts in the middle of May with Yorkshire their first opponenets in Leeds.
The first home game is a floodlit, and televised, affair with neighbours Leicestershire the visitors on Friday, May 23.
The replacement for the Clydesdale Bank 40, the Royal London 50, begins on July 27 when the County will travel to Cheltenham.
As has been the case in recent seasons, there will be a tour fixture at the County Ground with Sri Lanka playing a four-day game at the start of June.
April 13 Durham Northampton LVCC
April 20 Yorkshire Headingley LVCC
April 27 Lancashire Northampton LVCC
May 5 Durham MCCU Durham University
May 11 Nottinghamshire Trent Bridge LVCC
May 16 Yorkshire Headingley T20
May 18 Middlesex Northampton LVCC
May 23 Leicestershire Northampton T20
May 29 Derbyshire Derby T20
May 30 Worcestershire New Road T20
May 31 Yorkshire Northampton LVCC
June 5 Sri Lanka Northampton TOUR
June 13 Yorkshire Northampton T20
June 15 Warwickshire Northampton LVCC
June 19 Warwickshire Edgbaston T20
June 20 Lancashire Old Trafford T20
June 22 Lancashire Old Trafford LVCC
June 27 Durham Northampton T20
June 29 Middlesex Lord’s LVCC
July 3 Warwickshire Northampton T20
July 4 Leicestershire Grace Road T20
July 6 Sussex Hove LVCC
July 11 Derbyshire Northampton T20
July 12 Somerset Northampton LVCC
July 18 Worcestershire Northampton T20
July 23 Nottinghamshire Northampton T20
July 25 Durham Durham ICG T20
July 27 Gloucestershire Cheltenham 50L
July 29 Worcestershire Northampton 50L
August 5 Yorkshire Northampton 50L
August 7 England U19 v Australia U19 19TM
August 8 Hampshire Ageas Bowl 50L
August 10 Leicestershire Grace Road 50L
August 11 Derbyshire Northampton 50L
August 14 Lancashire Emirates Old Trafford 50L
August 15 Nottinghamshire Northampton LVCC
August 21 Essex Northampton 50L
August 31 Somerset Taunton LVCC
Sept 3 England Women v India Women WIT20
Sept 9 Warwickshire Edgbaston LVCC
Sept 15 Durham Durham ICG LVCC
Sept 23 Sussex Northampton LVCC