Barangay EJC Montilla is located on the eastern part of tacurong City and is about 2.4 kilometers away from Poblacion. The Barangay Hall is located alng the National Highway going to Isulan and all forms of transportation can reach the different puroks of this Barangay.
Barangay EJC Montilla has a total population of 4,307 residents, wherein 2, 138 are male and 2, 169 are female. It has 1, 036 households.
| Description | Area (Hectares) | % total Land Area |
| Total Land Area | 2,220 | 100% |
| Agricultural | 2,069.84 | 83.21% |
| Residential | 16.32 | 0.75% |
| Orchard | 9.34 | 0.42 |
| School Site & Brgy. Site | 1 | 0.05% |
| River/Creek | 36.37 | 1.64% |
| Donated Lot | 73 | 3.29% |
| Road Lot | 13.88 | 0.63% |
| Inland Fishpond | 0.25 | 0.01% |