Donji Žagari is located in the City of Čabar, in Primorje-Gorski Kotar County at an elevation of 370 meters above sea level and it covers the area of 1.68 km² (0.65 sq. miles). According to the 2011 census report, there were only eight inhabitants left. It is entirely populated by Croats. Nearby places: Mandli, Okrivje, Kamenski Hrib, Plešce, Požarnica, Podstene, Kraljev Vrh, Hrvatsko, Gornji Žagari and Zamost.