Gas prices in Mercer County, PA
Gas prices in Mercer County, PADaily metro average from AAA (2026-10-26), per gallon including taxes, for AAA’s Mercer County metro area in Pennsylvania.
Regular
$4.75
per gallon · €1.12/L
Midgrade
$5.24
per gallon · €1.24/L
Premium
$5.66
per gallon · €1.34/L
Diesel
$6.56
per gallon · €1.55/L
up vs last week 0.2% vs last week ($4.74) up vs a year ago 40.6% vs a year ago ($3.38)
Nearest Pennsylvania metros on price
The metros immediately either side of Mercer County in Pennsylvania, so you can see whether paying $4.75 here is normal or not.
| Metro | Regular | vs Mercer County |
|---|---|---|
| State College, PA | $4.51 | −$0.23 |
| Johnstown, PA | $4.54 | −$0.21 |
| Pittsburgh, PA | $4.69 | −$0.06 |
| Erie, PA | $4.70 | −$0.05 |
| Mercer County, PA | $4.75 | — |
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Tools for drivers in Mercer County
Frequently asked questions
How much is gas in Mercer County right now?
Regular gasoline averages $4.75 per gallon across Mercer County, PA today (AAA metro average, 2026-10-26). Midgrade is $5.24, premium $5.66 and diesel $6.56.
Is gas cheaper in Mercer County than the rest of Pennsylvania?
A Pennsylvania state comparison is unavailable today.
Where does Mercer County rank in Pennsylvania?
Mercer County is the 19th cheapest of 19 Pennsylvania metros AAA tracks.
Are gas prices in Mercer County higher than a year ago?
Yes — regular is 40.6% higher than this time last year ($3.38/gal then, $4.75 now).