Short, sourced stories from the Fast Food Index archive: every number computed from prices read at 53,289 restaurants — 13.4 million current prices — and refreshed as the archive grows. Quote anything; each story carries its citation line.
Hawaii pays 31.3% more than the national typical for the same fast food order — about 1.38 times what Oklahoma, the cheapest state, pays. The state ranking, and what drives it.
The widest same-city gap on a flagship item: the Whopper costs $5.89 on 11020 South Kedzie Avenue and $9.19 on 151 North Michigan Ave in Chicago.
The $12.99 14-inch Ultimate Pepperoni Pizza at Papa John's moved from $12.99 to $19.99 at 997 stores in one week.
All that separates America's four flagship sandwiches: the priciest typical price is $6.79, the cheapest $5.25.
How much more fast food costs in the states Kamala Harris won than in the states Donald Trump won — with the exceptions, the swing states, and all 50 states ranked.
Every figure here may be quoted. Each story ends with a citation line naming the source and the date the prices were checked (November 5, 2026 for the current set). The underlying pages — the state ranking, each chain's menu pages, and the price map — carry the full data behind each story.