San Diego, the state's second-most populous county, had a population of 3,336,081 persons in fiscal year 2025.

San Diego, the state's second-most populous county, had a population of 3,336,081 persons in fiscal year 2025, an increase of 0.32% over 2024's figure.

Sneak peek at upcoming San Diego-area street fairs, festivals, concerts, performances, art shows, library events, community meetings and more ...

San Diego International Airport (SAN) is experiencing flight delays due to foggy conditions, with an average delay of 163 minutes expected until midnight.