Merrill is located in west Iowa. Merrill is part of Plymouth County. Merrill has 0.57 square miles of land area and has no water area. As of 2010-2014, the total Merrill population is 862, which has grown 14.32% since 2000. The population growth rate is much higher than the state average rate of 5.19% and is higher than the national average rate of 11.61%. Merrill median household income is $57,344 in 2010-2014 and has grown by 32.33% since 2000. The income growth rate is about the same as the state average rate of 33.56% and is higher than the national average rate of 27.36%. Merrill median house value is $90,200 in 2010-2014 and has grown by 19.00% since 2000. The house value growth rate is much lower than the state average rate of 53.09% and is much 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 Merrill is much better than the state average in quality. The Merrill area code is 712.