<P> The United States enjoys the most developed pierogi market because of its having the largest Central and Eastern European immigrant population in North America (Canada being second). Unlike other countries with newer populations of European settlers, the modern pierogi is found in a wide selection of flavors throughout grocery stores in the United States . Many of these grocery - brand pierogi contain non-traditional ingredients to appeal to American tastes, including spinach, jalapeño and chicken . </P> <P> Pierogi enjoyed a brief popularity as a sports food when Paula Newby - Fraser adopted them as her food of choice for the biking portion of the 1989 Hawaii Ironman Triathlon . For more than a decade thereafter, Mrs. T's (the largest American pierogi manufacturer) sponsored triathlons, some professional triathletes and "fun runs" around the country . For many triathletes, pierogi represented an alternative to pasta as a way to boost their carbohydrate intakes . However, the pierogi trend in the United States is not dying . Several cities such as San Diego now have their own pierogi trucks with popular flavors and restaurants across the United States from San Francisco, Seattle, to New York City are adding gourmet pierogi flavors to their menus . </P> <P> According to pierogi manufacturer Mrs. T's, based in Shenandoah, Pennsylvania, pierogi consumption in the United States is largely concentrated in a geographical region dubbed the "Pierogi Pocket", an area including New York, New Jersey, Pennsylvania, Ohio, Indiana, Chicago, Detroit, parts of the northern Midwest and southern New England which accounts for 68 percent of annual US pierogi consumption . </P> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> Part of a series on </Td> </Tr> <Tr> <Th> Canadian cuisine </Th> </Tr> <Tr> <Td> Regional cuisines (show) <Ul> <Li> Maritimes </Li> <Li> Pacific Northwest </Li> <Li> Quebec </Li> <Li> Rocky Mountain </Li> <Li> Toronto </Li> </Ul> </Td> </Tr> <Tr> <Td> Beverages (show) <Ul> <Li> Beer <Ul> <Li> Quebec </Li> <Li> spruce </Li> </Ul> </Li> <Li> Caesar </Li> <Li> Caribou </Li> <Li> Ice cider </Li> <Li> Newfoundland Screech </Li> <Li> Whisky </Li> <Li> Yukon Jack </Li> <Li> Wine <Ul> <Li> British Columbia </Li> <Li> Ice wine </Li> <Li> Ontario </Li> <Li> Prince Edward County </Li> <Li> Quebec </Li> </Ul> </Li> </Ul> </Td> </Tr> <Tr> <Td> Ingredients (show) <Ul> <Li> Atlantic cod </Li> <Li> Caribou </Li> <Li> Cloudberry </Li> <Li> cheese </Li> <Li> Dulse </Li> <Li> Fiddlehead fern </Li> <Li> Harp seal </Li> <Li> Maple syrup </Li> <Li> Saskatoon berry </Li> <Li> Sockeye salmon </Li> <Li> Steak spice </Li> <Li> Winnipeg goldeye </Li> </Ul> </Td> </Tr> <Tr> <Td> Styles and dishes (show) <Ul> <Li> Bûche de Noël </Li> <Li> Buffalo burger </Li> <Li> Butter tart </Li> <Li> Donair </Li> <Li> Figgy duff </Li> <Li> Flapper pie </Li> <Li> Fried dough </Li> <Li> Ginger beef </Li> <Li> Montreal <Ul> <Li> bagel </Li> <Li> smoked meat </Li> </Ul> </Li> <Li> Oreilles de crisse </Li> <Li> Pâté chinois </Li> <Li> Peameal bacon </Li> <Li> Pierogi </Li> <Li> Pizza - ghetti </Li> <Li> Pouding chômeur </Li> <Li> Poutchine au sac </Li> <Li> Poutine </Li> <Li> Poutine râpée </Li> <Li> Rappie pie </Li> <Li> Rubaboo </Li> <Li> St. Catherine's taffy </Li> <Li> Sushi Pizza </Li> <Li> Tourtière </Li> <Li> White bread </Li> </Ul> </Td> </Tr> <Tr> <Td> Religious and ethnic (show) <Ul> <Li> Acadian </Li> <Li> Canadian Chinese </Li> <Li> Country food </Li> <Li> Inuit </Li> <Li> Tlingit </Li> </Ul> </Td> </Tr> <Tr> <Td> Rituals and festivals (show) <Ul> <Li> Pancake breakfast </Li> <Li> Jiggs dinner </Li> <Li> Kitchener - Waterloo Oktoberfest </Li> <Li> Réveillon </Li> <Li> Summerlicious and Winterlicious </Li> <Li> Taste of the Danforth </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> Canada portal </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table>

Where is the pierogi pocket located in the united states