Springfield is located in north New Jersey. Springfield is part of Union County. As of 2005-2009, the total Springfield population is 14,848, which has grown 2.90% since 2000. The population growth rate is lower than the state average rate of 5.47% and is much lower than the national average rate of 11.61%. Springfield median household income is $86,458 in 2005-2009 and has grown by 17.17% since 2000. The income growth rate is much lower than the state average rate of 30.67% and is much lower than the national average rate of 27.36%. Springfield median house value is $465,500 in 2005-2009 and has grown by 85.83% 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 Springfield is better than the state average in quality. The Springfield area code is 973.