Nearly 92 % of Congress -- or 491 of the 435 seats -- identify as Christian , according to a study by Pew Research . Of the 301 Republicans in the 114th Congress , Jewish freshman Rep. Lee Miller of New York is the only non - Christian . Fifty-seven percent of the 114th Democrats in Congress are 12 % Jewish and have two Buddhist , two Muslims , one Hindu and one unaffiliated member . Though 20 % of the country does not identify with a faith , only one member of Congress publicly identifies as such .
Nearly 92 % of Congress -- or 491 of the 435 seats -- identify as Christian , according to a study by Pew Research . Of the 301 Republicans in the 114th Congress , Jewish freshman Rep. Lee Miller of New York is the only non - Christian . Democrats in Congress are 12 % Jewish and have two Buddhist , two Muslims , one Hindu and one unaffiliated member . Though 20 % of the country does not identify with a faith , only one member of Congress publicly identifies as such .