There were no MBIE workers because none of the small local staff belongs to the union.
The strikers marched from the Bank St IRD offices, around the block to Laurie Hall Park.
"You're going to have to stand strong," Whangārei IRD staffer and national PSA delegate, Steve Bradley told the strikers.
''We're going to have to do a little more to make our point.''
He said their employers had told PSA officials and delegates last week that "two hours were not going to hurt"', referring to the short strike periods.
Bradley said the PSA members would receive another ballot in the next few days on whether to strike again on August 1.
Whangārei PSA organiser Mark Furey congratulated the workers on their courage. He said it was hard for a small group of workers to go public as they had.
Auckland PSA official Nora Cook, who was in Whangārei yesterday, said the employers were out of touch with the concept of ''fair pay''.
''We want you to know all the PSA is behind you. It's not much to ask an employer to bargain in good faith,'' she told the strikers.
In May, the Government announced that about 2000 of the lowest-paid public servants would move up to the 2018 living wage of at least $20.55 an hour.
The new hourly rate would cost an estimated $7.23 million for a one-off adjustment by September 1.