Northfield is located in south New Jersey. Northfield is part of Atlantic County. Northfield has 3.40 square miles of land area and 0.04 square miles of water area. As of 2010-2014, the total Northfield population is 8,616, which has grown 11.53% since 2000. The population growth rate is much higher than the state average rate of 5.47% and is about the same as the national average rate of 11.61%. Northfield median household income is $67,528 in 2010-2014 and has grown by 18.73% since 2000. The income growth rate is much lower than the state average rate of 30.67% and is lower than the national average rate of 27.36%. Northfield median house value is $239,500 in 2010-2014 and has grown by 86.96% since 2000. The house value growth rate is about the same as the state average rate of 87.30% and is much higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Northfield is better than the state average in quality. The Northfield area code is 609.