Start at the courthouse and walk south
Downtown Buckeye is small enough to walk in twenty minutes and old enough to reward the walk. Monroe Ave is the spine, a straight run of one- and two-story brick storefronts laid out by the original town plat, and most of the useful life of the historic center happens within a few blocks of it.
First stop: coffee on the 400 block
On a typical morning, Cafe 25:35 at 409 Monroe is where the day downtown begins. The front counter fills with regulars, and the south windows make it the brightest seat in the old business district. It is the kind of place where the baristas know the standing orders, and it anchors the walk's first pause.
Lunch and the north end
Keep walking north and the block around 6th and 7th holds the town's longer-running kitchens, Argento's Pizza & Wings among them, with CaliTacos holding down the south end of the strip. Downtown Buckeye does not pretend to be a food hall; it is a working main street, and the working main street is the point.
A grocery counter still downtown
The real tell that downtown still functions, not just looks historic, is the Butcher & Farmer Market at 224 Monroe. Big-box groceries sit out on Watson Rd, but the downtown block kept a walk-in market, which is rare for a town this size and worth noting in any guide to the center.
The street that throws the parade
Twice a year the same block becomes the stage: Buckeye Days in January runs its cattle-drive parade down Monroe, and Cotton Fest after Thanksgiving fills the plazas with crafts and food. The rest of the year it is simply the town's oldest address, and that is enough.