Northamptonshire face a tough opener in next season's County Championship.
Newly promoted Northants will play reigning champions Durham in the opening fixture of the LV=County Championship.
Northants won promotion after finishing second in Division Two last year.
Meanwhile, Essex will face newly relegated Derbyshire at the County Ground in Division Two.
Essex will hope to build on last season where they narrowly missed out on promotion.
For a more in-depth look at both clubs fixtures, click the links below: