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Service Area

San Miguel cover over 50 square miles in San Diego County and serves the communities of Bostonia, Casa de Oro, Crest, Grossmont/Mt. Helix, La Presa, Rancho San Diego, Spring Valley and the unincorporated areas of El Cajon and La Mesa.

To search an address and confirm whether or not it falls in our service area/jurisdiction, please use the mapping features at:

Know Your Hazards Map

Heartland Fire ARCGIS


If you reside in our service area and want to know which Division you are in, click here.

Map of San Miguel Fire District Service Area


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