On May 17, 2010, the Hawaii Five-O remake was picked up by CBS, which scheduled it for Monday nights in the 10--11 p.m. time slot. The news was good for the state of Hawaii, which hoped that the remake would pump new life into the economy. Production of the remainder of the first season started in June 2010. On June 24, 2010, the producers announced that it would use the warehouse at the former Honolulu Advertiser building as the official soundstage studio for the series starting in July 2010. Exteriors representing Five-0 headquarters in the series are located at the Ali'iolani Hale in Honolulu, directly across the street from Iolani Palace, which represented Five-O headquarters in the original series.

Can we conclude that is hawaii five-0 filmed in hawaii?
yes