sum (plural sums) 1  A quantity obtained by addition or aggregation. The sum of 3 and 4 is 7. ( 2 often plural) An arithmetic computation, especially one posed to a student as an exercise (not necessarily limited to addition). We're learning about division, and the sums are tricky. 3  A quantity of money. a tidy sum. the sum of forty pounds.
Most / Least Educated Cities in IA. As of 2010-2014, the total population of Ottumwa is 24,847, which is 0.60% less than it was in 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%.
Haakon County ... Ottumwa is located in Haakon County. For more information, please visit our Census Page for Haakon County. Population Rings for Ottumwa ... To help identify the number of people who live in Ottumwa and the surrounding area, we have drawn concentric rings centered on Ottumwa. We counted the number of communities within each ring and summed their populations.<3> We don't have the population of Ottumwa, so its people haven't been included.