More than 600 married people in Chesterfield are seeking affairs on an internet dating site.
The figures were released by IllicitEncounters.com, the country’s largest married dating site and shows the number of people having affairs in every area in the UK.
Chesterfield is ranked 74th most adulterous town in the UK, according to the website’s official Infidelity Index.
Claire Page, of IllicitEncounters.com, said: “It’s no wonder the traffic to the site is so high.
“People are dying to see how many people are having an affair on their street, village or town – who wouldn’t want to know if they live in a cheating hotspot?”
Psychologist Lucy Redford said: “There are many reasons people have affairs – feelings of frustration, isolation and loneliness can be contributing factors as well as the limited options in marriage.”