School buses idle in front of a school in Manhattan’s East Village on Jan. 15, 2013.
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As the new school year kicks off, school districts are facing a challenging math problem: the high cost of diesel.
The price of a gallon of diesel is up nearly $2 compared with this time last year. That is meaningful for schools, considering that around 90% of the United States’ 480,000 school buses run on diesel.
Nationally, the average price was $5.62 for a gallon as of Wednesday, according to AAA. This time last year, it cost $3.70.
School districts nationwide have been wrestling with the issue since spring, when the war with Iran started and fuel prices rose. A May survey produced by organizations that represent school superintendents and bus companies found that more than half the districts surveyed said diesel prices were already pushing them over budget.
In Washington state, Jacob Kuper, the Yakima School District’s assistant superintendent of finance and operations, estimated that in the 2026-2027 school year, the higher cost of diesel could cost his district 38% more — or $130,000. “The equivalent of one teacher,” he said.
So he looked for ways to reduce the district’s diesel use. And he found a few: The district consolidated bus routes. It staggered bell times, reduced the number of total trips and put more kids on the same bus. “So then you save on the actual number of drivers you need,” he said.
Kuper said that with those efforts, they’re on track to save more money — about $400,000 to $500,000.
But as kids head back to school for the fall, those changes could still pose some problems. “You have fewer drivers with longer routes or longer total hours per day,” he said. That means more difficult days for drivers.
Still, Kuper considers the Yakima School District lucky. “We’re fortunate we have a small geographical footprint,” he said, compared with more rural districts. Yakima’s routes aren’t that much longer, he said, so kids don’t have to spend much more time waiting on a bus.
The May survey found that 40% of school districts were also consolidating their bus routes. About 20% reported they were limiting non-required trips, like field trips. Others said they were considering switching their yellow buses to non-diesel vehicles.
Now, as schools reopen, districts will have to look for other ways to cut expenses, said Elleka Yost, director of advocacy and research at the Association of School Business Officials International, one of the organizations that conducted that survey. “Many districts are tapping reserves or rainy-day funds as a temporary solution,” she wrote by email to NPR. But, she added, this may weaken districts’ ability to respond to future financial challenges.
In Boise, Idaho, the school district has also looked for ways to reduce the number of stops per route. “Every stop adds mileage and cost,” said Lanette Daw, the district’s transportation supervisor. The district also added eight electric buses to its fleet this week, funded by a federal Clean School Bus Program award, as the district explores whether this could help save on fuel costs long term.
Still, the district’s transportation costs are higher this year: an increase of about $600,000.
In Monterey, Calif., Tom Thorpe, the school district’s transportation director, said he is watching prices “carefully, conservatively.” And he’s not just watching diesel: Monterey has transitioned most of its 50 or so school buses from diesel to gasoline. But state and local taxes make gas prices in Monterey higher than the national average. On Wednesday, the average price of gas in that city was $5.77 per gallon, while the national average was around $4.10, according to AAA. That makes gas in Monterey potentially more expensive than diesel elsewhere.
Thorpe saw this problem coming. By the end of the last school year, “I knew I wouldn’t have enough money,” Thorpe said. The district tried to make its routes as efficient as possible, but he said, “Buses get full. Ridership time is a concern.”
So he talked to his boss. “ I actually had to go back twice and say, ‘I didn’t project enough, boss. Can we get a little bit more?'”
But, he quipped, “my boss is a nice man.” He got the money he needed, he said, and “we squeaked through the rest of that quarter.”
Going forward, Monterey — as well as other school districts — will continue combing through their budgets, searching for things they can do without and put toward fuel use instead.
In Washington, Kuper will keep wrestling with his district’s fuel costs. He said his job is to keep the buses rolling, to keep the district on budget “and keep the reductions outside the classroom, if possible.”
