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A Gazetteer for the United States and Canada
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Welcome to Hillsdale ...

Hillsdale is located in San Diego County<1>.

Hillsdale is 550 feet [168 m] above sea level.<2>.

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

Area Codes for Hillsdale: 619 & 858<3>

Communities Also Named Hillsdale ...

Using our Gazetteer, we found that there are two California communities named Hillsdale: This one is located in San Diego County and the other is located in San Mateo County.

Beyond California, there are 61 communities that are also named Hillsdale - they are located in Alabama (3), Georgia, Idaho (2), Illinois, Indiana (2), Iowa, Kansas (2), Kentucky (2), Louisiana, Maryland (2), Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, New Brunswick, New Jersey, New York (2), North Carolina (6), North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon (2), Pennsylvania (3), Rhode Island, South Carolina (2), South Dakota, Tennessee (3), Utah (3), Virginia, Washington (2), West Virginia (2), Wisconsin and Wyoming.

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

Communities near Hillsdale ...

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

  • San Diego
    (13 miles [20.9 km] to the west)
  • Chula Vista
    (13 miles [20.9 km] to the southwest)
  • National City
    (12 miles [19.3 km] to the southwest)
  • La Mesa
    (5 miles [8 km] to the west)
  • Santee
    (5 miles [8 km] to the northwest)
    • Jump to our Gazetteer entry for Santee
    • Santee is located in San Diego County
    • Population from the 2020 Census: 57,770 people
    • Jump to TripAdvisor's Tourism page for Santee <4>
  • Poway
    (14 miles [22.5 km] to the northwest)
    • Jump to our Gazetteer entry for Poway
    • Poway is located in San Diego County
    • Population from the 2020 Census: 49,246 people
    • Jump to TripAdvisor's Tourism page for Poway <4>
  • Imperial Beach
    (17 miles [27.4 km] to the southwest)
  • Lemon Grove
    (6 miles [9.7 km] to the southwest)
  • Coronado
    (15 miles [24.1 km] to the southwest)
  • Spring Valley
    (4 miles [6.4 km] to the southwest)

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 Hillsdale. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Hillsdale.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Hillsdale. 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 Hillsdale.

We also have a detailed list of newspapers that have been published in the area around Hillsdale. See our Newspapers Page for Hillsdale.

TripAdvisor Tourism Pages for Hillsdale ...

Looking for more information about Hillsdale? 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.

While we are unaware of a Tourism page that is specific to Hillsdale, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for Hillsdale.

Footnotes ...

<1>If you're interested in how the shape of California's counties, including San Diego, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Hillsdale - it will be higher in some places and lower in others.
<3>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 619 code has been Overlayed with the 858 area code. New phone numbers in the Hillsdale area will be assigned with one of these codes: 619 or 858. As a result, placing a call in the Hillsdale area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.