Today climate change activists from Insulate Britain will appear at the High Court in London and could face jail for alleged breaches of injunctions handed out to prevent disruptive protests.
A Freedom of Information request by the Local Democracy Reporting Service found the seven protests in the county cost Hertfordshire Police £58,775.22.
Four protests took place in Hertfordshire during the first 10 days of action between 13 and 23 September, before the government injunction limited activity for a number of weeks.
The force said it was unable to provide a breakdown of how many officers have had to be deployed to each protest.
At least 76 arrests have been made in connection with the Hertfordshire protests.
Supt Nick Caveney said: “In order to minimise the disruption caused, we have had to dedicate resources to spotting protestors and removing them quickly; diverting valuable police resources away from our core role of preventing crime, catching criminals, and protecting the public.”