There are four institutes in the Oroua Federation - two transferred from the Wanganui Federation.
- Halcombe- meet at 1.30 pm on the 2nd Thursday in the Life Point Church, Derby Street, Feilding. Joy Smith the president is the woman to contact at email@example.com
- Rewa - meet on 2nd Tuesday at various times -11.00 am for a pot luck lunch or 1.30 pm or 7.15 pm in members' homes. For Rewa WI contact Marilyn Taylor at firstname.lastname@example.org
- Kaitoke WI - have an evening meeting at the Cleveland Parlour, 179 Ingestre Street, Whanganui on the 2nd Wednesday of the month at 7.30 p.m.
- Turakina WI - meet at the Turakina Tennis Club rooms at 1.00 p.m. on the 4th Monday of the month