Eureka is located in west Montana. Eureka is part of Lincoln County. Eureka has 1.01 square miles of land area and has no water area. As of 2010-2014, the total Eureka population is 1,036, which has grown 1.87% since 2000. The population growth rate is much lower than the state average rate of 11.55% and is much lower than the national average rate of 11.61%. Eureka median household income is $21,944 in 2010-2014 and has has shrunk by 19.09% since 2000. The income growth rate is much lower than the state average rate of 41.61% and is much lower than the national average rate of 27.36%. Eureka median house value is $117,300 in 2010-2014 and has shrunk by -59.38% since 2000. The house value growth rate is lower than the state average rate of 88.54% 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 Eureka is worse than the state average in quality. The Eureka area code is 406.