Labour-controlled Derbyshire County Council has 64 seats which will all be contested at the June election.
The majority of the Peak District National Park lies within the county border and about 740,000 people live in Derbyshire.
Its main industries are manufacturing, agriculture, minerals and tourism.
Despite having vibrant tourist centres in designated Areas of Outstanding Natural Beauty, some areas are in decline and suffering from the demise of the coal industry.
Tourism and public services are important sources of employment, particularly since the decline of the textile and mining industries.