New Zealand Post will look for a local business to help with options to deliver postal services for the area.
There is no immediate change to the current Whanganui branch and services, with a new location and opening date yet to be confirmed.
"Customer feedback on our new standalone branch model has been really positive," general manager retail distribution Geoff Waller said.
"We knew back in June 2016, when we first opened this style of branch, that customer needs had changed. They were looking for a Kiwibank environment that made it easier to have those more complex and important banking conversations. We're excited that Whanganui will be the next community to enjoy this new, modern banking service."
New Zealand Post says it is committed to continuing to provide postal services to the Whanganui community at locations that customers can easily access.
It is now looking for a local business to help deliver the postal services that are currently available from the Whanganui NZ Post & Kiwibank branch.
"We already successfully deliver postal services through local businesses in many communities as a way of operating as a commercially sustainable business," New Zealand Post head of retail Mark Yagmich said.
"This model works well for us, and for the businesses we work with, which generally benefit from increased foot traffic as people come in to buy stamps, and drop off their parcels."
Yagmich said customers would still be able to access postal services and the post box lobby at the Victoria Ave premises while NZ Post searched for a local business partner.