The neighbors in the Rancho San Diego neighborhood in El Cajon are upper-middle income, making it an above average income neighborhood. Rancho San Diego has a higher income than 64.4% of the neighborhoods in America. 28.7% of its working population is employed in executive, management, and professional occupations. The most common language spoken in the Rancho San Diego neighborhood is English, spoken by 72.2% of households. Other important languages spoken here include Spanish, Tagalog (the first language of the Philippines), and Arabic.