Delmar is located in east Iowa. Delmar is between the Clinton, Jackson county. Delmar has 0.76 square miles of land area and has no water area. As of 2010-2014, the total Delmar population is 499, which has shrunk 2.92% since 2000. The population growth rate is much lower than the state average rate of 5.19% and is much lower than the national average rate of 11.61%. Delmar median household income is $49,620 in 2010-2014 and has grown by 68.92% since 2000. The income growth rate is much higher than the state average rate of 33.56% and is much higher than the national average rate of 27.36%. Delmar median house value is $88,800 in 2010-2014 and has grown by 50.76% since 2000. The house value growth rate is about the same as the state average rate of 53.09% 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 Delmar is much better than the state average in quality. The Delmar area code is 563.