Welcome to Mount Oliver ...

Mount Oliver is located in Allegheny County<1>.

The location of Mount Oliver has been provided by the Geographic Names Information System (ie- the GNIS).<2>

While we don't have a date for the founding of Mount Oliver, you might consider that their post office opened  in 1874.

From the  Census Estimates for 2019, Mount Oliver has a population of 3,281 people<3> (see below for details).

Mount Oliver is 1,100 feet [335 m] above sea level.<4>.

Time Zone: Mount Oliver lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time

Population Details ...

Taken from the 2019 Census Estimates, Mount Oliver had an population of 3,281 people. This is a decrease of 3.59% since the 2010 Census (or a decrease of 17.36% since the 2000 Census).

At the time of the 2010 Census, Mount Oliver had a population of 3,403 people. This makes Mount Oliver the county's 43rd most populous community.

The population of Mount Oliver represents 0.03% of the population of Pennsylvania (which has 12,702,379 people), making it the state's 285th most populous community.

With a 2010 count of 3,403 people, the population of Mount Oliver decreased 14.28% from the 2000 Census (which had a count of 3,970 people).

More information can be found on the Census Page for Mount Oliver.

Communities near Mount Oliver ...

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

• Bethel Park
  (7 miles [11.3 km] to the southwest)
  • Note: The GPS coordinates that we are using for Bethel Park have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Bethel Park
  • Bethel Park is located in Allegheny County
  • Population from the 2020 Census: 32,212 people
  • Jump to TripAdvisor's Tourism page for Bethel Park <5>
• Monroeville
  (9 miles [14.5 km] to the east)
  • Jump to our Gazetteer entry for Monroeville
  • Monroeville is located in Allegheny County
  • Population from the 2020 Census: 27,393 people
  • Jump to TripAdvisor's Tourism page for Monroeville <5>
• Plum
  (13 miles [20.9 km] to the northeast)
  • Note: The GPS coordinates that we are using for Plum have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Plum
  • Plum is located in Allegheny County
  • Population from the 2020 Census: 26,993 people
  • Jump to TripAdvisor's Tourism page for Plum <5>
• West Mifflin
  (5 miles [8 km] to the southeast)
  • Note: The GPS coordinates that we are using for West Mifflin have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for West Mifflin
  • West Mifflin is located in Allegheny County
  • Population from the 2020 Census: 19,588 people
  • Jump to TripAdvisor's Tourism page for West Mifflin <5>
• Murrysville
  (14 miles [22.5 km] to the east)
  • Jump to our Gazetteer entry for Murrysville
  • Murrysville is located in Westmoreland County
  • Population from the 2020 Census: 19,446 people
  • Jump to TripAdvisor's Tourism page for Murrysville <5>
• McKeesport
  (7 miles [11.3 km] to the southeast)
  • Jump to our Gazetteer entry for McKeesport
  • McKeesport is located in Allegheny County
  • Population from the 2020 Census: 18,927 people
  • Jump to TripAdvisor's Tourism page for McKeesport <5>
• Wilkinsburg
  (5 miles [8 km] to the northeast)
  • Note: The GPS coordinates that we are using for Wilkinsburg have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Wilkinsburg
  • Wilkinsburg is located in Allegheny County
  • Population from the 2020 Census: 15,186 people
  • Jump to TripAdvisor's Tourism page for Wilkinsburg <5>
• Franklin Park
  (13 miles [20.9 km] to the northwest)
  • Note: The GPS coordinates that we are using for Franklin Park have been provided by the GNIS.<2> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Franklin Park
  • Franklin Park is located in Allegheny County
  • Population from the 2020 Census: 14,883 people
• New Kensington
  (15 miles [24.1 km] to the northeast)
  • Jump to our Gazetteer entry for New Kensington
  • New Kensington is located in Westmoreland County
  • Population from the 2020 Census: 12,188 people
  • Jump to TripAdvisor's Tourism page for New Kensington <5>
• Jefferson Hills
  (8 miles [12.9 km] to the south)
  • Jump to our Gazetteer entry for Jefferson Hills
  • Jefferson Hills is located in Allegheny County
  • Population from the 2020 Census: 11,136 people
  • Jefferson Hills has also been known as:
  • Jefferson

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

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

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

TripAdvisor Tourism Pages for Mount Oliver ...

Looking for more information about Mount Oliver? 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 Mount Oliver, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Mount Oliver.

Adding Mount Oliver to Our Gazetteer ...

We originally found mention of Mount Oliver 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 Mount Oliver was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Mount Oliver post office opened in 1874.

We also found Mount Oliver in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for Mount Oliver.

Off-the-Road Links ...

Unfortunately, we don't know of a website for Mount Oliver. If you can help, please contact us through our Feedback Page.

The official website for Allegheny County: www.county.allegheny.pa.us/

The official website for State of Pennsylvania: https://www.pa.gov/