Chikusei is a city located in the Ibaraki Prefecture of Japan. As of January 1, 2024, the city encompasses a total area of 205.30 square kilometres (79.27 sq mi) and maintains a population density of 478 persons per km2.
The city has an estimated population of 98,031 residents living in 39,075 households. Demographic data indicates that the percentage of the population aged over 65 is 31.2%.