Kızılkoca is a village in Şefaatli District, in Yozgat Province, Türkiye. Kızılkoca lies at 1,230 m above sea level, 4.0 km from the Anatolian plateau mountains. It has 173 inhabitants. The nearest city is Yozgat, 24 km to the north. Among the landmarks around are Hattusa (47 km), Yazılıkaya (47 km) and Çapanoğlu Mosque (24 km).