Welcome to San Carlos ...

The city of San Carlos is located in San Mateo County<1>.

While we don't have a date for the founding of San Carlos, you might consider that their post office opened  in 1895.

The city was incorporated July 8, 1925.

From the  Census Estimates for 2019, San Carlos has a population of 29,660 people<2> (see below for details).

San Carlos is 100 feet [30 m] above sea level.<3>.

Time Zone: San Carlos lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

San Carlos is located in the (650) area code.

Websites for San Carlos ...

Official Website: www.cityofsancarlos.org/

Population Details ...

Taken from the 2019 Census Estimates, San Carlos had an population of 29,660 people. This is an increase of 4.41% since the 2010 Census (or an increase of 7.01% since the 2000 Census).

At the time of the 2010 Census, San Carlos had a population of 28,406 people. This makes San Carlos the county's 10th most populous community.

The population of San Carlos represents 0.08% of the population of California (which has 37,253,956 people), making it the state's 242nd most populous community.

With a 2010 count of 28,406 people, the population of San Carlos increased 2.48% from the 2000 Census (with a count of 27,718 people).

More information can be found on the Census Page for San Carlos.

Communities Also Named San Carlos ...

While we believe that this San Carlos is located in San Mateo County, we know of another 2 California communities named San Carlos. Those communities are located in the following counties: Inyo and San Diego County.

Beyond California, there are 10 communities that are also named San Carlos - they are located in Arizona (2), Colorado, Florida (2), Nevada and Texas (2).

For more information, see our Tidbits & Trivia Page for San Carlos.

Communities near San Carlos ...

We have created a list of 10 communities that are near San Carlos.

• Fremont
  (15 miles [24.1 km] to the east)
  • Jump to our Gazetteer entry for Fremont
  • Fremont is located in Alameda County
  • Population from the 2020 Census: 234,569 people
  • Former names for Fremont:
  • Centerville
  • Irvington
  • Mission San Jose
  • Niles
  • Warm Springs
  • Jump to TripAdvisor's Tourism page for Fremont <4>
• Hayward
  (14 miles [22.5 km] to the northeast)
  • Jump to our Gazetteer entry for Hayward
  • Hayward is located in Alameda County
  • Population from the 2020 Census: 157,966 people
  • Jump to TripAdvisor's Tourism page for Hayward <4>
• Sunnyvale
  (15 miles [24.1 km] to the southeast)
  • Jump to our Gazetteer entry for Sunnyvale
  • Sunnyvale is located in Santa Clara County
  • Population from the 2020 Census: 151,746 people
  • Jump to TripAdvisor's Tourism page for Sunnyvale <4>
• Santa Clara
  (19 miles [30.6 km] to the southeast)
  • Jump to our Gazetteer entry for Santa Clara
  • Santa Clara is located in Santa Clara County
  • Population from the 2020 Census: 131,055 people
  • Jump to TripAdvisor's Tourism page for Santa Clara <4>
• Daly City
  (16 miles [25.7 km] to the northwest)
  • Jump to our Gazetteer entry for Daly City
  • Daly City is located in San Mateo County
  • Population from the 2020 Census: 105,868 people
  • Jump to TripAdvisor's Tourism page for Daly City <4>
• San Leandro
  (16 miles [25.7 km] to the north)
  • Jump to our Gazetteer entry for San Leandro
  • San Leandro is located in Alameda County
  • Population from the 2020 Census: 89,161 people
  • Jump to TripAdvisor's Tourism page for San Leandro <4>
• Mountain View
  (12 miles [19.3 km] to the southeast)
  • Jump to our Gazetteer entry for Mountain View
  • Mountain View is located in Santa Clara County
  • Population from the 2020 Census: 80,030 people
  • Jump to TripAdvisor's Tourism page for Mountain View <4>
• Alameda
  (17 miles [27.4 km] to the north)
  • Jump to our Gazetteer entry for Alameda
  • Alameda is located in Alameda County
  • Population from the 2020 Census: 78,841 people
  • Jump to TripAdvisor's Tourism page for Alameda <4>
• Union City
  (13 miles [20.9 km] to the northeast)
  • Jump to our Gazetteer entry for Union City
  • Union City is located in Alameda County
  • Population from the 2020 Census: 74,501 people
  • Former name for Union City:
  • Decoto
  • Jump to TripAdvisor's Tourism page for Union City <4>
• Palo Alto
  (7 miles [11.3 km] to the southeast)
  • Jump to our Gazetteer entry for Palo Alto
  • Palo Alto is located in Santa Clara County
  • Population from the 2020 Census: 67,008 people
  • Jump to TripAdvisor's Tourism page for Palo Alto <4>

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around San Carlos. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for San Carlos.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of San Carlos. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around San Carlos.

We also have a detailed list of newspapers that have been published in the area around San Carlos. Our list includes 6 papers. See our Newspapers Page for San Carlos.

TripAdvisor Tourism Pages for San Carlos ...

Looking for more information about San Carlos? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for San Carlos, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for San Carlos.

Adding San Carlos to Our Gazetteer ...

We originally found mention of San Carlos in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for San Carlos was in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for San Carlos.

Off-the-Road Links ...

The official website for San Carlos: www.cityofsancarlos.org/

The official website for San Mateo County: www.co.sanmateo.ca.us/

The official website for State of California: https://www.ca.gov/