Ishioka is a Japanese city situated in the Ibaraki Prefecture. As of January 1, 2024, the city has an estimated population of 70,124 residents living in 28,892 households.
The city covers a total area of 215.53 square kilometres (83.22 sq mi), resulting in a population density of 325 persons per km2. Approximately 33.5% of the population is aged over 65 years old.