“Sally was a much-loved sister to William and Issie, and a treasured daughter of Richard and Kate,” they said, adding she was a beloved granddaughter and loved by all her aunties, uncles and cousins.
“She had a large number of friends and was very popular with everyone who knew her.
“Since her death it has become apparent how much Sally was loved and cherished. Her sudden absence leaves an unfillable space in the lives so many people that knew and loved her.”
The family said Sally found happiness at her local young farmers club, as well as enjoying horse riding and her day-to-day life at home.
Marletwy YFC issued a tribute, describing her as the “warmest, most loving person” who was a “friend to everyone, young or old”.
It said the accident took place while Sally was travelling back from the Royal Welsh Show, where she had spent her last night with her friends “dancing the night away with a croc on one foot and a trainer on the other”.
“That was just Sal,” it added.
Police are continuing to appeal for witnesses to the collision, which involved a red Renault Clio and Blue Audi Q5.