A large pool of first home buyers were also looking to purchase property in Wanganui.
"It's not just Wanganui first-home buyers - we've had two Auckland inquiries today and we get inquiries from investors from Aussie."
Mr Kubiak said a few more good months would be necessary to identify a trend. Given interest rates and buyer inquiry, he expected the good sales figures to continue.
However, property listings were tightening up a little.
"If anything could put a dampener on things, it's possibly that," he said.
The median price of houses sold in Wanganui this June was $162,500, up on last June's $151,000 and May's $145,000.
Mr Kubiak expected house prices to remain steady in the coming months. "It's really positive given that we were sort of knocked back a few weeks ago with the flooding. But now it's very much business as usual in the real estate market."
Nationally, 7426 dwellings sold in New Zealand in June 2015, according to the Real Estate Institute.
That was up 29.2 per cent on June 2014 and down 7 per cent on May. The median price of the sales this June was $450,000, up $23,000 on June 2014 and down $10,000 on May.
Excluding Auckland, the average median price for June was $340,000, on par with last June and down $9000 on May.
Real Estate Institute chief executive Colleen Milne said there was increasing evidence Aucklanders were looking out of the region - both as owner-occupiers and for investment.
Regions such as Northland and Waikato/Bay of Plenty of Plenty had recorded significant drops in the volume of properties for sale over the past six months, with Aucklanders increasingly being identified as a significant buying group in these regions.
"Further afield, there is increasing evidence that Aucklanders are making up a larger portion of total buyers."