Introduction and objective:
‘Healthy Słupsk’ is an example of a health promotion campaign carried out in a city with a population of under 100,000. One of the significant aspects of the campaign is constant communication using social media. Its aim is to promote pro-health behaviour among the citizens. The objective of the study was to asses the impact of of ‘Healthy Słupsk’ on the social media Facebook.

Material and methods:
Using the Facebook Insights tool, statistical analysis was performed of the ‘Healthy Slupsk’ blog from December 2015 – April 2016.

Results:
Most of the subscribers were aged between 18–24 years and a group of 25 – 34-year -olds (both groups together accounted for 64% of the audience). The vast majority of the blog’s users were women (75% of the total). Local health news and photos attracted the greatest attention among the subscribers. News concerning the health promotion event organized by the ‘Healthy Slupsk’ recorded 3.2 thousand views.

Conclusions:
The local character of campaigns like ‘Healthy Slupsk’ seems to be their most substantial advantage, which is confirmed by the statistics showing interest in the local news about health. Therefore, this vital quality can be implemented in similar further initiatives