Co-Op City is amazing. A massive housing development on the eastern edge of the Bronx, it has its own schools, power plant, newspaper, even a planetarium. It was built by a clothing workers union and the United Housing Federation in the 1960s to provide affordable middle-class housing in New York City. From the beginning, it embraced a social justice mandate that included participatory self-government, ethnic diversity and a sharing of resources. Just 49 percent of New York City households have responded to the 2020 Census so far " well behind the national average of nearly 60 percent. At stake are potentially billions of dollars in desperately needed federal funds as well as seats in the House of Representatives. But not all Census tracts are created equal. In Co-Op City, the world's largest co-operative housing complex, with more than 15,000 apartments, residents are not only well ahead of the rest of the Bronx and of New York City " they also outpace much of the nation. Among Co-Op City's seven tracts, five exceed 70 percent in participating, and the others are not far behind " making "the city in a city" an outlier in the Bronx, where fewer than 40 percent in many tracts have responded to Census Bureau mailings. Noel Ellison, 67, general manager for Co-Op City's property management company, Riverbay Corporation, said the coronavirus crisis has galvanized residents, bringing an already tight community even closer. So did Co-Op City's unusual inclusiveness, he suggested.