This article presents the socioeconomic and demographic situation in Klaipėda county that is illustrated by chosen indicators’ analysis. In this article Klaipėda county has been chosen as an example territory to measure the peripherality phenomenon. Thus, in order to measure the peripherality the chosen indicators’ values were compared with Lithuanian average and state’s centres’ values. The article stresses the most peripheral regions in Klaipėda county which needs the governance attention and also the strongest one that leads all the county. The article finds out that the cooperation question is essential for both – county’s peripheries and centres – as it provides possibility to stay stable or even endows a potential to grow.