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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Knoxville. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Knoxville, Iowa is approximatly 7731.
Racial profile for Knoxville:
| White : | 7499 |
| Black : | 68 |
| Native American : | 24 |
| Asian : | 40 |
| Pacific Islander : | 5 |
| Other : | 22 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Knoxville, Iowa :
| 18 - 19 : | 91 |
| 20 : | 42 |
| 21 : | 49 |
| 22 - 24 : | 113 |
| 25 - 29 : | 233 |
| 30 - 34 : | 209 |
| 35 - 39 : | 266 |
| 40 - 44 : | 329 |
| 45 - 49 : | 284 |
| 50 - 54 : | 271 |
| 55 - 59 : | 185 |
| 60 - 61 : | 76 |
| 62 - 64 : | 93 |
| 65 - 66 : | 60 |
| 67 - 69 : | 101 |
| 70 - 74 : | 167 |
| 75 - 79 : | 140 |
| 80 - 84 : | 98 |
| 85+ : | 67 |
Population by age for females in Knoxville, Iowa :
| 18 - 19 : | 88 |
| 20 : | 42 |
| 21 : | 41 |
| 22 - 24 : | 138 |
| 25 - 29 : | 226 |
| 30 - 34 : | 226 |
| 35 - 39 : | 257 |
| 40 - 44 : | 299 |
| 45 - 49 : | 243 |
| 50 - 54 : | 218 |
| 55 - 59 : | 178 |
| 60 - 61 : | 71 |
| 62 - 64 : | 99 |
| 65 - 66 : | 64 |
| 67 - 69 : | 96 |
| 70 - 74 : | 197 |
| 75 - 79 : | 184 |
| 80 - 84 : | 143 |
| 85+ : | 196 |
The total amount of households in Knoxville, Iowa is 3191. With 7286 people of the population in these households. The average household size is 2.28.
5805 people in Knoxville, Iowa are part of a family. The average family size in Knoxville is 2.92 people.
There are 1287 married families in Knoxville, Iowa.
Number of married families by number of members in the family :
| 0 - 2 : | 206 | 3 - 4 : | 154 | 5 : | 66 | 6 - 11 : | 429 | 12 - 17 : | 432 |