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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Newton. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Newton, Iowa is approximatly 15579.
Racial profile for Newton:
| White : | 15197 |
| Black : | 61 |
| Native American : | 35 |
| Asian : | 94 |
| Pacific Islander : | 16 |
| Other : | 52 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Newton, Iowa :
| 18 - 19 : | 148 |
| 20 : | 75 |
| 21 : | 78 |
| 22 - 24 : | 289 |
| 25 - 29 : | 503 |
| 30 - 34 : | 470 |
| 35 - 39 : | 577 |
| 40 - 44 : | 566 |
| 45 - 49 : | 547 |
| 50 - 54 : | 486 |
| 55 - 59 : | 363 |
| 60 - 61 : | 114 |
| 62 - 64 : | 165 |
| 65 - 66 : | 113 |
| 67 - 69 : | 174 |
| 70 - 74 : | 308 |
| 75 - 79 : | 253 |
| 80 - 84 : | 184 |
| 85+ : | 126 |
Population by age for females in Newton, Iowa :
| 18 - 19 : | 163 |
| 20 : | 78 |
| 21 : | 85 |
| 22 - 24 : | 274 |
| 25 - 29 : | 472 |
| 30 - 34 : | 496 |
| 35 - 39 : | 601 |
| 40 - 44 : | 557 |
| 45 - 49 : | 547 |
| 50 - 54 : | 515 |
| 55 - 59 : | 383 |
| 60 - 61 : | 145 |
| 62 - 64 : | 215 |
| 65 - 66 : | 125 |
| 67 - 69 : | 228 |
| 70 - 74 : | 448 |
| 75 - 79 : | 365 |
| 80 - 84 : | 322 |
| 85+ : | 345 |
The total amount of households in Newton, Iowa is 6713. With 15136 people of the population in these households. The average household size is 2.25.
12124 people in Newton, Iowa are part of a family. The average family size in Newton is 2.84 people.
There are 2585 married families in Newton, Iowa.
Number of married families by number of members in the family :
| 0 - 2 : | 428 | 3 - 4 : | 275 | 5 : | 147 | 6 - 11 : | 893 | 12 - 17 : | 842 |