Järva County is one of 15 counties of Estonia. It is situated in the central part of the country and borders Lääne-Viru County to the east, Jõgeva County to the south-east, Viljandi County to the south, Pärnu County to the south-west, Rapla County to the west, and Harju County to the north. In January 2009, Järva County had a population of 29,940 – constituting 2.7% of the total population in Estonia.

Lääne-Viru County is one of 15 counties of Estonia. It is in northern Estonia, on the south coast of the Gulf of Finland. In Estonian, lääne means western and ida means east or eastern. Lääne-Viru borders Ida-Viru County to the east, Jõgeva County to the south, and Järva and Harju counties to the west. In January 2013, Lääne-Viru County had a population of 58,806: 4.5% of the population in Estonia.