About Mount Oliver
Mount Oliver is a borough in Allegheny County, Pennsylvania, United States. The population was 3,394 at the 2020 census.
A borough of 3,394 people (2020 census)1, Mount Oliver sits in what we call the South Hills. Mount Oliver has 15 places to eat and drink in our directory, 64th of the 129 municipalities outside the city on this site2. Coffee & Cafes lead the count with 2, and bars and pubs come next with 2. 87% are independently owned. Brownsville Road is the main food street, with 12 listings.
The population was essentially flat between 2010 and 2020, at about 3,39413. The median household earns about $52,297 a year, and 18% of adults 25 and over hold a bachelor's degree or more4. About 17% of workers commute by transit4. Pittsburgh Regional Transit has 17 active stops here, served by bus5.
Mount Oliver by the numbers
Counts from our directory2. Land area from Census TIGER/Line county subdivisions7.
Listings by category
Main food streets: Brownsville Road (12).
New and changing
These Mount Oliver facilities had a preoperational inspection from the Allegheny County Health Department between Aug 11, 2025 and Jul 28, 2026. That inspection happens before a food facility opens, changes owners or reopens after major work8.
- Oliver MarketInspected & Permitted
Things to do nearby
Markets and groceries
- Dollar Tree #5553 · supermarket
Source9 County asset inventory as of March 2020; not every record verified.
Getting there
Transit
17 active stops, about 7,058 scheduled trips a week, by bus. Busiest stop: Brownsville Rd at Goldbach Way (966 weekly trips).
Source5 Check PRT for live times.
How working residents commute
Percent of workers 16+, 2020-2024 estimates4.
Who lives here
Survey estimates for small towns have wide margins of error.