Long before it was a city, the land along the falls where the Winooski River meets Lake Champlain was Abenaki territory. “Winooski” comes from an Abenaki word recorded variously as winoskitegw or winoskik, meaning “land of the wild onion” — a reference to the wild leeks and onions gathered along the riverbanks. English speakers once called the waterway the Onion River, and “Onion City” still sticks as a nickname.12
European development began after the Revolutionary War, when land speculator Ira Allen built a dam at the falls with sawmills at each end.1 Waterpower shaped what followed. In 1835, six Burlington businessmen organized the Burlington Woolen Mill beneath the falls, hoping to repeat the success of Massachusetts textile towns. The mills expanded through the nineteenth century and drew French-Canadian and Irish workers; by 1870, those communities made up more than half the village's population.3 French-Canadian Catholics founded St. Francis Xavier parish in 1868 to serve about 800 people, and completed its church a few years later.4
The American Woolen Company bought the struggling local mills in 1901 and made the complex one of Vermont's largest employers, producing military uniform cloth and employing roughly 3,000 people at its wartime peak. The 1927 flood battered the mill district, and American Woolen closed the Winooski operation in 1954, moving production south in search of cheaper labor.3 Winooski had already separated from Colchester and become its own city in 1922, but the closure left it searching for a new identity.5
That search took a strange turn in 1979, when city planner Mark Tigan proposed enclosing downtown beneath a geodesic dome to cut heating costs. Architect John Anderson drew plans for a structure roughly 200 feet high, and the city secured a $55,000 federal planning grant. Winooski hosted the first — and only — International Dome Symposium in March 1980, with geodesic-dome inventor Buckminster Fuller giving the keynote. The idea drew national attention, but federal officials pulled the funding and the dome was never built.6
Urban renewal had already cleared large sections of downtown in the 1970s, and rebuilding took decades. The Champlain Mill, built in 1912 and vacant after 1954, was acquired by the city in 1972 and converted by 1980 into offices, shops, and restaurants.7 Redevelopment in the 2000s and 2010s restored parts of the street grid and added mixed-use buildings. The work continues: a roughly $28 million Main Street reconstruction, including the traffic circle, is scheduled across 2024–26.8
Today, Winooski is Vermont's most densely populated municipality, with roughly 8,000 residents in about one and a half square miles.1 Since the 1980s it has also been a refugee-resettlement community. Its school district serves families speaking more than a dozen languages,9 while Main Street's Nepali, Bhutanese, Indian, Thai, and Vietnamese kitchens reflect the New American families who have added another meaning to the Onion City's long history of arrivals.10