Kellogg is located close to the center of Iowa. Kellogg is part of Jasper County. Kellogg has 0.37 square miles of land area and has no water area. As of 2010-2014, the total Kellogg population is 759, which has grown 25.25% 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%. Kellogg median household income is $49,145 in 2010-2014 and has grown by 32.82% 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%. Kellogg median house value is $81,300 in 2010-2014 and has grown by 15.32% 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 Kellogg is much better than the state average in quality. The Kellogg area code is 641.