Roselle is located in northeast New Jersey. Roselle is part of Union County. Roselle has 2.65 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Roselle population is 21,348, which has grown 0.35% since 2000. The population growth rate is much lower than the state average rate of 5.47% and is much lower than the national average rate of 11.61%. Roselle median household income is $43,122 in 2010-2014 and has has shrunk by 15.87% 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%. Roselle median house value is $223,500 in 2010-2014 and has shrunk by -72.99% since 2000. The house value growth rate is lower than 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 Roselle is worse than the state average in quality. The Roselle area code is 908.