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Welcome to San Diego County ...
Time Zone: San Diego County lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time.
The community of San Diego is the Seat for San Diego County.
San Diego County is one of the original counties of California and was founded in 1850.
From the Census Estimates for 2019, <1> San Diego had a population of 3,330,459 people. This is an increase of 7.6% since the last Census (which gave a population of 3,095,313 people in 2010).
At the time of the 2010 Census, San Diego represented 8.31% of the total population of California.
Below are some of the communities located in San Diego County:
- Carlsbad
(24 miles [38.6 km] to the northwest)
- Chula Vista
(18 miles [29 km] to the south)
- Coronado
(16 miles [25.7 km] to the southwest)
- Del Mar
(12 miles [19.3 km] to the west)
- El Cajon
(9 miles [14.5 km] to the southeast)
- Encinitas
(16 miles [25.7 km] to the northwest)
- Escondido
(14 miles [22.5 km] to the north)
- Imperial Beach
(22 miles [35.4 km] to the south)
- Continue List (10 more) ...
- La Mesa
(9 miles [14.5 km] to the south)
- Lemon Grove
(11 miles [17.7 km] to the south)
- National City
(15 miles [24.1 km] to the south)
- Oceanside
(27 miles [43.5 km] to the northwest)
- Poway
(4 miles [6.4 km] to the north)
- Jump to our Gazetteer entry for Poway
- Poway is located in San Diego County (CA)
- Population from the 2020 Census: 49,246 people
- Jump to TripAdvisor's Tourism page for Poway <2>
- San Diego
(13 miles [20.9 km] to the south)
- San Marcos
(17 miles [27.4 km] to the north)
- Santee
(6 miles [9.7 km] to the southeast)
- Jump to our Gazetteer entry for Santee
- Santee is located in San Diego County (CA)
- Population from the 2020 Census: 57,770 people
- Jump to TripAdvisor's Tourism page for Santee <2>
- Solana Beach
(13 miles [20.9 km] to the northwest)
- Vista
(23 miles [37 km] to the northwest)
- Jump to our Gazetteer entry for Vista
- Vista is located in San Diego County (CA)
- Population from the 2020 Census: 100,636 people
- Jump to TripAdvisor's Tourism page for Vista <2>
Websites of Interest ...
- Websites specific to California
- Websites specific to San Diego County
- Websites for nearby counties
- Imperial County
- Orange County
- Riverside County
- Cemetery Information and Directories
Footnotes ...
| <1> | On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census. |
| <2> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
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