"It's also terrific to see good numbers coming from the Americas, and that USA, Canada and Argentina will be well supported. Our estimates suggest 10,000 from these countries."
Forty four per cent are thought to be first-time visitors to New Zealand.
Ticket sales were also on track and had climbed to 1.08 million, pushing up revenue to $234 million - $34.5 million or 230,000 tickets short of the final target.
"This is clearly achievable," Mr Snedden said.
"Fans have snapped up more than 180,000 tickets since the final ticketing phase launched on July 4.
"Over the last 10 weeks or so, since the 100 days to go milestone, nearly 300,000 tickets, worth $65m, have been sold."
He said a flurry of ticket sales were expected in the final build-up to the tournament.
The Bledisloe Cup test last weekend also appears to have boosted the world's appetite for rugby; $1 million in tickets have been sold since the game.
The Government, who is paying for the tournament, is expected to take a $39 million hit, but wider economic benefits have been estimated in the hundreds of millions.
"Our message to fans is, get in now as many matches will sell out. Time is really running out. While tickets are available to most matches, there is limited availability in many categories," Mr Snedden said.
He also said the trial runs for Eden Park and the new Forsyth Barr Stadium in Dunedin could barely have gone better.
"We identified some fine tuning we will need to do as expected, but by and large the venue and plans passed the test with flying colours and the fans appear to have endorsed that view."
Meanwhile RNZ 2011's polling also confirms growing interest in RWC 2011.
"Nationally, 88 per cent of New Zealanders say they are interested to some degree in RWC and despite all of the challenges and disappointments for the people of Christchurch this year, they remain one of the most interested of the regions with 42 per cent of those polled in Christchurch saying they are very interested."
The Colmar Brunton poll of 750 people was carried out in June 2011.