Granger has 1.45 square miles of land area. As of 2010, the total Granger population is 1,244, which has grown 113.38% since 2000, the sixth fastest growing community in the State of Iowa. The population growth rate is much higher than the state average rate of 4.10% and is much higher than the national average rate of 9.71%. This rapid population growth indicates Granger is a developing community.
