It is a 2nd class municipality in the province of Tarlac, Philippines.
According to the latest census, it has a population of 82,022 people in 15,769 households.
The MacArthur Highway cuts through the center of the town.
Gerona is one of the 17 towns of the province of Tarlac. It is bounded on the north by Paniqui; on the east by the Pura; on the south by Tarlac City (the provincial capital); and on the west by Santa Ignacia. The town is 73 km. from San Fernando City, the regional center; 50 km from Clark Special Economic Zone in Angeles City
; and 139 km north of Metro Manila