The three day-event was held last week at its Waimumu site.
Mataura Licensing Trust general manager Mark Paterson said the return of the field days after a four-year break because of Covid-19 was "fantastic" both in terms of attendance and economic impact, underscoring its importance to the community and local businesses.
"As we reflect on this year’s event, we are left with a sense of optimism and appreciation for the camaraderie and economic opportunities it brings to eastern Southland."
While it was early days, those supporting the field days had made a considerable impact on the trust’s economy.
"Our on-site booth witnessed a record take over the three days, reflecting the enthusiasm of punters.
"Accommodations were fully booked ... bars and the bottle store also saw a significant pickup in turnover."
The Thomas Green Public House and Dining Room and the Howl at the Moon restaurant "were full to the brim every evening from Tuesday through to Saturday", he said.
Field days committee chairman Steve Henderson said the event was an "outstanding success" and public attendance was probably the highest in history.
On Wednesday, the public were queuing up to enter the grounds at 8.30am.
When the volume of people turned up on the first day it was a relief, as the 2022 event had been cancelled because of Covid.
It was like the event could not cash in on the success of the previous event and the committee was starting from scratch, Mr Henderson said.
"There was no momentum.
"Because it’s been four years we weren’t sure if we were going to be waiting for Thursday or Friday.
"We were pretty overwhelmed."
He estimated 15,000 attended on Wednesday, 12,000 on Thursday and 17,000 on Friday.
The wet weather on Thursday kept some people away.
Those who were there spent more time in tents sheltering from the rain and talking to representatives which had been good for exhibitors.
The carparks on Friday were overflowing and one committee member commented he had never seen so many people attend.
It had been a good season for farmers, which may also have contributed to the attendance.
There seemed to be a good demand for machinery, especially motorbikes, Mr Henderson said.
Overall, he was very pleased.
"Huge numbers through the gates, the exhibitors are happy, the public’s happy, plenty of positivity."