The population of Iwata is 169.643 inhabitants, including around 8.380 foreign citizens, 4.799 Brazilians, 233 Peruvians, 506 Chinese, 1.204 Filipinos, 299 Indonesians, 114 Koreans, 628 Vietnamese, 170 Thais, 73 Sri Lankans, 44 Pakistanis and others…
Gyokoji Temple in Iwata City is famous for its clusters of wisteria flowers called Yuya no Nagafuji, over five feet long, a large and beautiful wisteria trellis formed by trees …

Iwata City was granted city status in April 1948 and in April 2005 the neighboring cities of Fukude, Ryūyō, Toyoda and Toyooka Village were merged into Iwata.