Pizza, the 'Pineapple Belt' and America's hidden culinary divide

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At first glance, pizza seems simple enough: Dough, sauce, melty cheese. Maybe some sausage or pepperoni. A few slices of fresh tomato. Or a thinner crust with bacon or basil. Or why not a double crust stuffed full of mozzarella and garlicky spinach?

And now we're down the rabbit hole of American pizza, which in fact turns out to be a bewilderingly diverse, complicated and contentious culinary crazy quilt. Identifying the most popular regional pizza styles, and the top-rated places for each style, wound up capturing our imagination (and spare time) for months.

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First, we struggled to map the fervid, feral American pizza landscape, from Sicilian to Creole to Chicago to Cuban. Because our data queries slammed into an inconvenient truth: American pizza is mostly just New York-style pizza. Or at least it tries to be.

New York's the top pizza style in 42 states and the District of Columbia. It's about three times as popular as Neapolitan and its wood-fired and brick-oven relatives, which have now overtaken Chicago's double-crusted deep-dish pizza to become America's Second Pizza, according to our analysis of about 7.5 million Yelp reviews from tens of thousands of independent and small-chain pizzerias.

The most popular pizza style in every state, mapped
The most popular pizza style in every state, mapped

After reading thousands of reviews, and exchanging just about as many emails with our friends at Yelp, we found that the secret to measuring American pizza is a careful parsing of the review text. It's hard to review a pizza without, at some point, letting it slip that the pizza in question is St. Louis style (cracker-thin crust and Provel cheese) or a classic New York slice.

One complication: If you simply search for "Chicago" or "Detroit," you'll get a ton of reviews saying things like: "When Aunt Irma comes down from Detroit, she refuses to leave until we get her this aubergine anchovy pizza!" But then we discovered that focusing on reviews where Detroit is mentioned next to "style" or "pizza" helped eliminate those false positives and consistently identify pizzerias that sear their pies to a caramelized crisp in deep, square pans befitting the Motor City.

By this method, we identified about 35 distinct variations of pizza, from the Indian pies that are becoming popular on the West Coast to the square-cut Altoona style, which is topped with thick slices of American cheese. But in review after review, restaurant after restaurant, we found New York pizza - or at least what the local Pocatello place claims is New York pizza - remains ubiquitous. That single style has consistently dominated the American landscape since pizza made its way from the Bel Paese to Manhattan's Little Italy somewhere around the Teddy Roosevelt administration.

How many Yelp reviews each style was mentioned in, particularly when followed by the words
How many Yelp reviews each style was mentioned in, particularly when followed by the words

New York-ish pizza is literally iconic. If you look at the pizza emoji on your phone, it's probably a firm-but-foldable New York slice. It's what you'd expect if you earned a pizza party by reading six books last summer, or if your boss ordered pizzas because everyone was stuck late covering an election or meeting a quarterly revenue target or whatever it is non-journalists do to earn work pizza.

The New York-style cheese pizza at Joe's in the Big Apple. (Photo for The Washington Post by Rana Düzyol)
The New York-style cheese pizza at Joe's in the Big Apple. (Photo for The Washington Post by Rana Düzyol)

And our data shows that New York City remains the undisputed pizza capital of the country. When we divided America into more than 2,300 blocks of at least 100,000 people and measured the number of pizzerias - leaving out the huge national chains - the top four blocks were all in Manhattan. The western swath of Midtown that includes Times Square and Penn Station, not to mention Chelsea and the theater district, led the way. The others all sat nearby, spanning the cheesy tourist heart of the Big Apple.

Pizzerias per 1,000 food-prep workers and servers
Pizzerias per 1,000 food-prep workers and servers

The tourist heart of D.C. also ranks in the top five because, as a rule, tourists love pizza. Or at least they love the independent pizzerias we're measuring here.

"Today's consumer palette is looking for a more localized take on pizzas and something you can't find elsewhere when traveling," said Brittany Smith, who directs community campaigns at Yelp and thus has a neighborhood-eye view of all that's trendy or trending in the pizza universe.

Among states, New Jersey is the pizza capital. If we look at metros, Ocean City, N.J. (Cape May County) tops the pound-for-pound list, followed by the metro that contains Martha's Vineyard in Massachusetts. These holiday hamlets rise to prominence partly because restaurants eat up more of the economy in tourist towns. We tried to adjust for that by calculating pizzerias relative to the total number of resident food-service workers, but even then certain tourist locales climbed to the top.

The Neapolitan-style Truffle Shuffle, Tie Dye and LBC varieties at Speak Cheezy Pizza in Long Beach, Calif. (Photo for The Washington Post by Sean Scheidt)
The Neapolitan-style Truffle Shuffle, Tie Dye and LBC varieties at Speak Cheezy Pizza in Long Beach, Calif. (Photo for The Washington Post by Sean Scheidt)

At the other end of the scale, our maps emphatically paint the American South, especially the Deep South, as a pizza desert - though we'll point out again that we're ignoring Pizza Hut, Domino's and other huge, national chains. It's possible that Alabamians love pizza as much as Pennsylvanians - they just prefer it standardized, homogenized and delivered in 30 minutes or less.

So those are our broad, top-level findings. But when we dug beyond the nation's foldable surface layer of New York pizza, we found a whole new buried substratum of pizza allegiances.

For starters, we found that Neapolitan-ish pizzas - the thin-crust pies that are fired in minutes in blast furnace-like ovens - have risen to become the second-choice style across most of the country. After that, we start to see regional trends emerge.

If Americans deviate from the Gotham Standard Slice or one of the many Neapolitan-ish options, they almost always go for their diametrical opposite: the local version of pan or deep-dish. In most of the country, that means deep-dish stuffed pizzas done Chicago-style, with a few Detroity exceptions.

The areas of the country with the deepest Italian roots also have the most distinctive pizza traditions. Around New York, New Jersey and Pennsylvania, square, bready Sicilian pizza remains the dominant local alternative. In New England, it's Greek style, an oily, old-school, round-pan pizza that's not to be confused with the olive-and-feta Greek pizza topping found on diner and deli menus nationwide.

Population reporting at least some Italian ancestry 2017-2021
Population reporting at least some Italian ancestry 2017-2021

Unfortunately or fortunately, depending on your perspective on greasy bread, our analysis suggests that both of these Northeast pan pizzas are a dying breed, challenged on one side by the more extreme and stylish deep-dishes, and on the other by healthier, hipper wood-fired options.

A few places have already embraced these alternatives: Connecticut and Missouri have elevated local thin-and-crispy New Haven and St. Louis varieties, respectively.

So far, this analysis has ignored the proverbial pie in the ointment: pineapple. If we counted Hawaiian as a pizza style, rather than a topping - which would be wrong on so many levels - it would emerge as the dominant regional style in much of the Greater Northwest, from the Dakotas to the Pacific Coast, as well as a few Southern states.

Despite being invented in Canada by a bespectacled Greek immigrant living just across Lake St. Clair from Detroit, Hawaiian pizza actually peaks in popularity in the U.S. in its namesake state, the erstwhile Sandwich Islands. Reviewers there are more likely to name-drop pineapple than in any mainland state - though, like so much in Hawaii, that could be an unwanted outside imposition. We sometimes waded through more than a dozen tourist opinions before hearing from the first local in Yelp reviews.

And as one keyboard jockey hinted, the term might mean something different in Hawaii given that every pie in the archipelago is - by definition - Hawaiian pizza.

At one of the most popular pizzerias in the state, Kona Brewing on the Big Island, ordering the Hawaii Kai will get you an ale-based barbecue sauce, goat cheese, mozzarella, kalua pork, sweet onion and pineapple. That's a far cry from the Hawaiian pizza you'll find in Idaho, the second-biggest state for the topping, according to our extensive firsthand empirical research (also known as a summer job slinging pizza outside Boise).

(Interestingly, if you exclude New York style and Hawaiian - which, again, we consider a mere topping, rather than a "style" of pizza - the most popular regional pizza in Hawaii comes from Boston. Greater Honolulu sports several spots serving pies transplanted from Boston's historically and ostentatiously Italian North End, from Bob's Pizzeria in Kailua to Kaimuki's Boston Pizza in the city itself. The style is more popular there than in Massachusetts.)

Pineapple's popularity in Idaho and its Northwestern neighbors may be just one manifestation of America's hidden pizza divide, a mysterious gap that began to emerge when we looked at the most common non-pizzeria restaurant types in each state that feel the need to include pizza on their menus. In most of the Pineapple Belt - Northern states outside the Northeast, from Michigan to Oregon, and including Hawaii - you're most likely to get your non-pizzeria pizza at a bar. In the rest of the country, you're probably getting it at an Italian restaurant.

Folks in the Pineapple Belt seem to regard pizza not as Italian food but as pub fare. They're way more likely in reviews to mention "beer" or "burger" than "slice" or "garlic knot," fixtures in East Coast pizzerias. "Wine" is rare, and the venue is more likely to be a traditional American-style restaurant where "salad" is not on the menu.

Bar employment share as a multiple of the national average, 2022
Bar employment share as a multiple of the national average, 2022

We won't come right out and say that people take their pizza less seriously in bar-and-grillsville, but they do seem to treat it differently. Reviews are less likely to extol the essential elements of pizza ("cheese," "sauce") and more likely to mention "pineapple" and even "ranch."

The setting where pizza is served seems to have a substantial effect on its ratings. The non-pizzeria places that get the highest ratings on Yelp tend to be food trucks, vegetarian restaurants, cafes and pasta shops. Sports bars, service stations and buffets don't get quite as much love.

The restaurant types that pair best with pizza
The restaurant types that pair best with pizza

To be sure, almost every state is the capital of at least one pizza-related category, dubious though it may be. Based on Yelp ratings, New Hampshire has either the worst pizzas or the harshest reviewers - or both. Nevada has the best pizza, but perhaps because tourists tend to rate pizza more generously than locals - or because pizza tastes a bit better after a few comped drinks at the blackjack table. Chicago-style in Chicago can get lower ratings than Chicago-style in Colorado Springs simply because folks in Chicago are judging against stiffer competition.

Alaskans are most likely to mention "beer" in a pizza review. Texans are tops for "wine" (followed by D.C. and California), and Ohio leads the nation in "pepperoni." New Mexico rules "ranch" - we read the reviews, and they're talking about the dressing and not cowpokes - while Nebraska and South Dakota are tops for eating pizza "with a fork." D.C. leads in "anchovies."

But most reviews, whether regarding a big-city behemoth or a forgotten suburban chain, hit similar notes. No matter where they live, folks crowd into the pizzeria review section to express unbridled joy at how delicious the pies were, what a perfect place they'd found to celebrate their niece's kickball participation trophy, and how they're already looking forward to next year.

From Delaware to Dallas, Tacoma to Tampa, Americans agree there's no such thing as bad pizza.

Italian sausage deep-dish pie at My Pi Pizza in Chicago. (Photo for The Washington Post by Jason Little)
Italian sausage deep-dish pie at My Pi Pizza in Chicago. (Photo for The Washington Post by Jason Little)

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