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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Irwin. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Irwin, Iowa is approximatly 372.
Racial profile for Irwin:
| White : | 368 |
| Black : | 1 |
| Native American : | 1 |
| Asian : | 0 |
| Pacific Islander : | 0 |
| Other : | 0 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Irwin, Iowa :
| 18 - 19 : | 4 |
| 20 : | 1 |
| 21 : | 2 |
| 22 - 24 : | 4 |
| 25 - 29 : | 16 |
| 30 - 34 : | 4 |
| 35 - 39 : | 9 |
| 40 - 44 : | 15 |
| 45 - 49 : | 16 |
| 50 - 54 : | 8 |
| 55 - 59 : | 10 |
| 60 - 61 : | 2 |
| 62 - 64 : | 6 |
| 65 - 66 : | 6 |
| 67 - 69 : | 4 |
| 70 - 74 : | 14 |
| 75 - 79 : | 13 |
| 80 - 84 : | 4 |
| 85+ : | 2 |
Population by age for females in Irwin, Iowa :
| 18 - 19 : | 2 |
| 20 : | 3 |
| 21 : | 1 |
| 22 - 24 : | 6 |
| 25 - 29 : | 11 |
| 30 - 34 : | 5 |
| 35 - 39 : | 7 |
| 40 - 44 : | 17 |
| 45 - 49 : | 12 |
| 50 - 54 : | 11 |
| 55 - 59 : | 11 |
| 60 - 61 : | 4 |
| 62 - 64 : | 10 |
| 65 - 66 : | 5 |
| 67 - 69 : | 4 |
| 70 - 74 : | 17 |
| 75 - 79 : | 9 |
| 80 - 84 : | 8 |
| 85+ : | 10 |
The total amount of households in Irwin, Iowa is 168. With 372 people of the population in these households. The average household size is 2.21.
304 people in Irwin, Iowa are part of a family. The average family size in Irwin is 2.76 people.
There are 57 married families in Irwin, Iowa.
Number of married families by number of members in the family :
| 0 - 2 : | 6 | 3 - 4 : | 6 | 5 : | 4 | 6 - 11 : | 15 | 12 - 17 : | 26 |