Station 12 serves the community of San Antonio Heights, which is located in the foothills of the San Gabriel Mountains and is North of the City of Upland.  Station 12 is staffed with one Type 1 Fire Engine and one Brush Engine.  Daily staffing consists of one full-time Captain, and one Limited Term Firefighter (L.T.). Seasonally, there may be an additional paid call firefighter to augment Station 12's staffing.   Station 12 also has a Paid Call Firefighter program. 

In addition to responding to calls in the local community, Station 12 assists Mt. Baldy Station #200, the neighboring cities of Upland and Rancho Cucamonga, and provides automatic mutual aid assistance to the foothill front country with the U.S. Forest Service and the California Dept. of Forestry.