PITTSBURGH — (WPXI) – While gas prices are steadily declining across the state, Pennsylvanians are still paying more on-average than drivers who are filling up their tanks in several other parts of the nation. On Monday, Pennsylvania’s average for a regular gallon of gas was $4.67. That cost is about a dime below last week’s average, of $4.78, but still higher than the current national average of $4.52. According to Jim Garrity, Director of Public Affairs for AAA East Central, that disparity is “something that we consistently see happening,” as the result of Pennsylvania’s gas tax. “The gas tax in Pennsylvania is consistently one of the highest,” Garrity said. “At some points, it is the highest in the entire country.” And yet, gas prices tend to also range region to region. According to AAA data, counties within Southwest PA are tending to pay closer to $4.72, while counties in Southeast PA are paying closer to $4.63. Here in Washington, AAA put the average price at $4.78 a gallon.