A council report said Ucol made up 82.6 per cent of the patronage while "fare paying customers remain low".
The service cost $114,772 in 2017/18 and had 8328 passengers with Horizons ratepayers forking out $4.20 per passenger and the taxpayers $4.38.
Patrick said the committee discussed whether changes such as decreased fares would increase passenger numbers and was keen to hear public feedback.
"If there's a demand, let's see what we can do to meet it," Patrick said.
"For me I'm really keen for Whanganui people to tell us what they want from their bus services."
Patrick "absolutely" supported the service despite it needing a top-up.
"We're fortunate in that our public transport services don't have to break even per se. It's something we're keen to invest in."
She was keen to encourage more people to take the bus.
"If you're car pooling with a small engine vehicle then cool, keep doing that. But if you're not and it's available, why not try the bus, give it a go."
Taking the bus freed up time otherwise spent driving to do other things, Patrick said.
"I think it's a habit and a mindset thing."
Horizons will be putting the Whanganui to Palmerston North commuter service out to tender.