List of San Diego County Cities in alphabetical order

• Carlsbad
• Chula Vista
• Coronado
• Del Mar
• El Cajon
• Encinitas
• Escondido
• Imperial Beach
• La Mesa
• Lemon Grove
• National City
• Oceanside
• Poway
• San Diego
• San Marcos
• Santee
• Solana Beach
• Vista

List of San Diego County Cities by Population

Here is a comprehensive list of cities in San Diego County, California by population

City Name	Population (2020)
San Diego*	1,386,932
Chula Vista	275,487
Oceanside	174,068
Escondido	151,038
Carlsbad	114,746
El Cajon	106,215
Vista	98,381
San Marcos	94,833
Encinitas	62,007
La Mesa	61,121
Santee	60,037
National City	56,173
Poway	48,841
Lemon Grove	27,627
Imperial Beach	26,137
Coronado	20,192
Solana Beach	12,941
Del Mar	3,954

List of San Diego County Cities by land area

1. San Diego – Approximately 372.1 sq mi
2. Chula Vista – Approximately 52.0 sq mi
3. Oceanside – Approximately 42.0 sq mi
4. Escondido – Approximately 37.5 sq mi
5. Carlsbad – Approximately 39.1 sq mi
6. El Cajon – Approximately 14.9 sq mi
7. Vista – Approximately 19.5 sq mi
8. San Marcos – Approximately 24.0 sq mi
9. Encinitas – Approximately 20.0 sq mi
10. National City – Approximately 6.2 sq mi
11. La Mesa – Approximately 9.3 sq mi
12. Santee – Approximately 16.2 sq mi
13. Poway – Approximately 39.1 sq mi
14. Imperial Beach – Approximately 4.5 sq mi
15. Solana Beach – Approximately 1.7 sq mi
16. Del Mar – Approximately 1.8 sq mi
17. Coronado – Approximately 32.5 sq mi (including the naval base)
18. Lemon Grove – Approximately 4.8 sq mi

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