Four people were told to seek urgent help after having their blood pressure measured at an event in Buxton.
The Know Your Blood Pressure campaign saw over 200 people get a free test.
A further 51 people were told to contact their doctors routinely because their pressures were higher than normal.
High Peak Mayor Pat Jenner showed his support for the Know Your Blood Pressure campaign, run by Buxton Rotary Club and the Stroke Association, by having his blood pressure tested.
Rotary members were assisted by ten health professionals at the event held at the University of Derby, Buxton Dome and in Spring Gardens Precinct.
Dr John Harry, organiser for the Rotary Club said: “High blood pressure is the single biggest risk factor for stroke, so the importance of identifying its presence is clear, especially as it can be present without symptoms. Effective and safe treatments are now available.”