The volunteers count the cards and open and read each of them, flagging special ones to be brought to Dalton for him to read.
"We're looking for those special cards we think Dalton would like to read. One little girl said she wished he was her boyfriend," said Debra Williams, a volunteer at the church.
"The big majority of the town has sent cards or is helping out. Everyone just wants to do what we can. We're all just praying and hoping," she said.
Despite some reports that Dalton had already broken the record for receiving the most Christmas cards, spokeswoman Jamie Panas said Guinness "currently does not monitor a category for this."
However, Guinness does have an old record on the books. As of 1992, the last official time Guinness allowed for a Christmas card category, Canadian Jarrod Booth had collected 205,120.
Jessica Dingus told ABCNews.com that she has since registered Dalton in the hopes the record keepers will open a category for him.
There are some reports that Dalton has only until Dec. 31 to break the record, but Panas said that was not true.
To send Dalton a Christmas card, address it to: Dalton Dingus HC 62 Box 1249 Salyersville, KY 41465.