[1] The first round of fixtures began on 7 April, with the final matches completed on 28 September.
All of the fixtures starting on 26 June 2017 were played as day/night matches.
[2] Following a series of financial "bailout" payments made by the England and Wales Cricket Board to Durham during the 2016 season, the county, which had finished fourth in Division One at the end of the season, were relegated to Division Two in place of the eighth place team, Hampshire.
[3] Durham were also placed under a salary cap administered by the ECB until 2020 and started the 2017 Championship season with a deduction of 48 points.
The fixture list for the 2017 season was announced in November 2016.