Riverina Redneck Rally's event director Gavin Gilbert said he has high hopes of hitting the "magic one million" next year.

The participants collected $333,514 for the annual event this year, pushing the total sum closer to the target.

Since 2017, the rally has fundraised $730,160 for Country Hope, which helps local children with cancer and life-threatening illnesses.

Mr Gilbert said the event has been "inundated" with people from all over the country wanting to participate.

"We can see the motivation in the way participants fundraise. Each driver is truly passionate," he said.

"We have 30 cars from the Riverina take part, but we want to get the word out there to get more local people behind the local case."

Mr Gilbert said the money has helped hundreds of children.

This year alone, about 190 families will be supported by the fundraiser.

"One-hundred per cent of the money raised is donated to Country Hope," he said.

"They do not receive government funding like a lot of the larger support groups so, we decided to make them the sole beneficiary of all our efforts."

Andrew Walsh, of Wagga, has been involved since the inaugural event in 2017.

Mr Walsh said raising money for a worthy cause and the idea of an outback adventure motivated him to take part each year.

"I signed up early on because I thought it would be good to raise money for Country Hope and the kids. I have been actively involved ever since," he said. "They don't get any funding, so they need people on the ground helping them out.

"I have been able to meet some great people and the friendships formed are a great part of it."

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Mr Walsh said his fundraising efforts do not stop when the rally ends.

"We are working 52 weeks, all year round. We are out every Wednesday night selling raffle tickets," he said.

"We work most of our lives in our own interest and it is important to do things for someone else."

The drivers started the five-day challenge in Balranald on March 11 and finished in Hay on March 15.

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