Worthington is located in east Iowa. Worthington is between the Dubuque, Delaware county. Worthington has 0.38 square miles of land area and has no water area. As of 2010-2014, the total Worthington population is 355, which has shrunk 6.82% 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%. Worthington median household income is $59,375 in 2010-2014 and has grown by 63.79% 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%. Worthington median house value is $98,900 in 2010-2014 and has grown by 32.75% since 2000. The house value growth rate is much lower than the state average rate of 53.09% 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 Worthington is much better than the state average in quality. The Worthington area code is 563.