Onalaska is located in southwest Wisconsin. Onalaska is part of La Crosse County. Onalaska has 10.13 square miles of land area and 0.60 square miles of water area. As of 2010-2014, the total Onalaska population is 18,148, which has grown 22.30% since 2000. The population growth rate is much higher than the state average rate of 6.73% and is much higher than the national average rate of 11.61%. Onalaska median household income is $53,813 in 2010-2014 and has grown by 12.58% 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%. Onalaska median house value is $164,700 in 2010-2014 and has grown by 43.97% since 2000. The house value growth rate is lower than the state average rate of 47.86% and is lower 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 Onalaska is better than the state average in quality. The Onalaska area code is 608.