A taluk headquarters town, Ketar lies in the northern part of
Garhwa District in
Jharkhand. The nearest city is
Garhwa, which is about 40 km south-east.
Bhawanathpur, famous for Goddess Bhagvathi Temple and Parasdiha Waterfalls, is about 10 km south.
Nagar Untari Railway Station and
Varanasi Airport are the nearest railhead and airport respectively.