Ms Gundersen-Reid said Carterton had also led the North Island for population growth, according to the 2013 Census figures.
From 2006 to 2013, Carterton grew 16 per cent, while Masterton posted a 3.2 per cent rise in population and the head count in South Wairarapa grew 7.2 per cent.
"We're getting some people from Wellington and some from other parts of the country who have chosen to move here - we're also getting people who have come back from overseas and most have a reason for coming here, which often is family.
"Or they have decided they like the Wairarapa lifestyle and want to live here while still being close to Wellington or Palmerston North - we're very close to two cities but you can still have that lifestyle choice," she said.
"I think it's very positive for the regional economy and hopefully it continues. Each of the districts have experienced increases in population growth and median incomes but I found it intriguing that Carterton and South Wairarapa were actually higher.
"Carterton and Greytown are growing - Martinborough as well, there's lots of people with holiday homes and B&Bs there - but I think a lot of people are choosing Carterton as a great little town to live in, because it is - it's close to Masterton but still retains that provincial charm."
In 2013, 38.2 per cent of adult Kiwis (aged 15 and over) had a personal income of $20,000 or less, and 5.9 per cent had a personal income of over $100,000.
Men were more likely than women to have an income of over $70,000, at 19.6 per cent for men compared with 8.3 per cent for women.
Men had a median income of $36,500 and women had a median income of $23,100. Men's median income was 1.6 times that of women's median income.
The increase in median income since 2006 was less for men than for women. Since 2006, men's median income increased 15.9 per cent and women's median income increased 20.9 per cent.