As of April 1, 2008 population data, the city has an estimated population of 73,492 and a population density of 240 persons per km². The total area is 306 km².
Created as an old temple town, the city was greatly developed by the Maeda clan in the early Edo period. The modern city was first incorporated on January 1, 1958, and then expanded on October 1, 2005 through a merger with the town of Yamanaka.
Today, Kaga is an important tourist city with a number of temples and hot-springs.