This article considers the dynamics of the natural population growth (E) indicators of Kuldiga Region over the past 28 years and gives a geo-ecological analysis of the favourability of the Kuldiga Region territory for its inhabitants, based on four environmental factors. This article specifies that E value in Kuldiga Region is higher than E values in Vidzeme and Latgale territory, but it is the lowest in Kurzeme regions. In order to find out the reasons for this phenomenon, such environmental factors have been analysed in the article as intensity and horizontal gradients of the anomalous magnetic and gravitational fields.