Birnamwood is located close to the center of Wisconsin. Birnamwood is between the Shawano, Langlade, Marathon county. Birnamwood has 2.21 square miles of land area and has no water area. As of 2010-2014, the total Birnamwood population is 903, which has grown 13.58% since 2000. The population growth rate is much higher than the state average rate of 6.73% and is higher than the national average rate of 11.61%. Birnamwood median household income is $37,868 in 2010-2014 and has grown by 0.15% since 2000. The income growth rate is much lower than the state average rate of 20.43% and is much lower than the national average rate of 27.36%. Birnamwood median house value is $97,600 in 2010-2014 and has grown by 59.74% 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 Birnamwood is worse than the state average in quality. The Birnamwood area code is 715.