Tiffin is located in east Iowa. Tiffin is part of Johnson County. Tiffin has 4.13 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Tiffin population is 1,921, which has grown 97.03% since 2000. The population growth rate is much higher than the state average rate of 5.19% and is much higher than the national average rate of 11.61%. Tiffin median household income is $51,000 in 2010-2014 and has grown by 20.34% since 2000. The income growth rate is much lower than the state average rate of 33.56% and is lower than the national average rate of 27.36%. Tiffin median house value is $179,000 in 2010-2014 and has grown by 56.33% since 2000. The house value growth rate is higher than 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 Tiffin is much better than the state average in quality. The Tiffin area code is 319.