Because Ramona is not an incorporated city, there are no city limits by which to measure its area. There are primarily three geographic areas by which the land area of Ramona is measured: 1. The boundaries of the Ramona Municipal Water District (approximately ); 2. The boundaries of the Ramona Unified School District (approximately ), and; 3. The boundaries of the Ramona Community Planning Area. The last is the primary area utilized by San Diego County's regional planning agency, the San Diego Association of Governments (SANDAG).