 The gmina covers an area of , and as of 2006 its total population is 11,474.Gmina Jedlnia-Letnisko contains the villages and settlements of Aleksandrów, Antoniówka, Cudnów, Dawidów, Groszowice, Gzowice, Gzowice-Folwark, Gzowice-Kolonia, Jedlnia-Letnisko, Lasowice, Maryno, Myśliszewice, Natolin, Piotrowice, Rajec Poduchowny, Rajec Szlachecki, Sadków, Sadków-Górki, Siczki, Słupica and Wrzosów.Gmina Jedlnia-Letnisko is bordered by the towns of Pionki and Radom, and by the gminas of Gózd, Jastrzębia and Pionki.