Idaho Gas Pain Spotlight
Week of 2026-05-18 · Source: EIA PADD regional average (no state-level series published for this state)
For the week of 2026-05-18, drivers in Idaho paid $4.59/gal — ranked #9 of 50 (tied with 3 other states). That’s 2.2% above the national average of $4.49/gal.
4 states share this exact figure — they read from the same EIA regional bucket, so they all rank #9.
What it costs to fill up
A 15-gallon tank at Idaho prices ran $68.80. A 26-gallon truck tank cost $119.26.
Where Idaho sits
| Metric | Value |
|---|---|
| State avg | $4.59 |
| National avg | $4.49 |
| Difference | +2.2% |
| State rank | #9 of 50 (tied with 3 other states) |
| Data source | EIA PADD regional average |