DECATUR, Ga.  Parents at an elementary school here gathered last Thursday afternoon with a holiday mission: to prepare boxes of food for needy families fleeing some of the world’s horrific civil wars.

The community effort to help refugees resembled countless others at this time of year, with an exception. The recipients were not many thousands of miles away. They were students in the school and their families.

More than half the 380 students at this unusual school outside Atlanta are refugees from some 40 countries, many torn by war. The other students come from low-income families in Decatur, and from middle- and upper-middle-class families in the area who want to expose their children to other cultures. Together they form an eclectic community of Buddhists, Christians, Hindus, Jews and Muslims, well-off and poor, of established local families and new arrivals who collectively speak about 50 languages.

“The fact that we don’t have anything in common is what we all have in common,” said Shell Ramirez, an American parent with two children at the school.