Graphic: Track U.S. and state gas prices

Gas prices across the country, after declining much of April, are spiking again.
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The Iran war has led to higher prices at the gas pump.

Gas prices in the United States, up more than 30% since the U.S. and Israel launched the war, have soared as the global oil supply constricts.

Now at a national average of more than $4 per gallon, according to data from motor club AAA, this price increase is straining already-stretched budgets in households across the country.

NBC News is tracking gas prices and how they change at the national and state levels, and will be updating this article daily with the latest data.

Average gas prices have increased more than a dollar since the U.S. and Israel first attacked Iran.

In five states — California, Hawaii, Nevada, Oregon and Washington — average gas prices are more than or near $5 per gallon, the highest nationally. States toward the middle of the country are paying the least, according to AAA data.

Fuel costs aren’t limited to gas. Jet fuel prices have been surging as well, leading airlines to increase airfares.

Oil prices have spiked and then see-sawed, as a ceasefire was announced and then extended. Experts said that gas prices could start declining in April, but after multiple weeks of gradual decline gas prices have shot up to new highs.