Marshfield is located close to the center of Wisconsin. Marshfield is between the Wood, Clark, Marathon county. Marshfield has 13.46 square miles of land area and 0.03 square miles of water area. As of 2010-2014, the total Marshfield population is 18,514, which has shrunk 1.52% since 2000. The population growth rate is much lower than the state average rate of 6.73% and is much lower than the national average rate of 11.61%. Marshfield median household income is $42,619 in 2010-2014 and has grown by 14.42% since 2000. The income growth rate is lower than the state average rate of 20.43% and is much lower than the national average rate of 27.36%. Marshfield median house value is $128,400 in 2010-2014 and has grown by 54.14% since 2000. The house value growth rate is higher than the state average rate of 47.86% and is 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 Marshfield is much better than the state average in quality. The Marshfield area code is 715.