 About 1.9% of families and 3.8% of the population were below the poverty line, including 5.7% of those under age 18 and 4.8% of those age 65 or over.Buffalo City is part of the Cochrane-Fountain City School District.Buffalo City is home to the original Buffalo County Jail, which was built in 1862 and is now part of the city's park between 10th and 12th streets.