MAPPED: Where gas prices are rising the fastest from the Iran conflict

The national average now stands at $3.98 per gallon, up $1 from a month ago, according to AAA.

Prices are climbing across nearly every region, with some states already well above the national average. 

On the West Coast, drivers are seeing the highest costs, with prices reaching $5.87 per gallon in California and $5.32 in Washington.

In the Midwest, Illinois stands out at $4.21 per gallon, while much of the region remains closer to the mid-$3 range. 

Southern states are generally lower, though still rising, with Texas at $3.60 and South Carolina at $3.64, while Florida is higher at $3.96.

Diesel prices are climbing faster than gasoline, reflecting their close ties to freight and industry-meaning increases can ripple through supply chains and raise costs across the economy.