Boston
According to a 2014 study by the Pew Research Center, 57% of the population of the city identified themselves as Christians, with 25% professing attendance at a variety of churches that could be considered Protestant, and 29% professing Roman Catholic beliefs. while 33% claim no religious affiliation. The same study says that other religions (including Judaism, Buddhism, Islam, and Hinduism) collectively make up about 10% of the population.

Q: In 2014, what percentage of the city identified as Christian?
57%