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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Lewiston. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Lewiston, Idaho is approximatly 30904.
Racial profile for Lewiston:
| White : | 29403 |
| Black : | 92 |
| Native American : | 491 |
| Asian : | 236 |
| Pacific Islander : | 25 |
| Other : | 159 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Lewiston, Idaho :
| 18 - 19 : | 453 |
| 20 : | 244 |
| 21 : | 233 |
| 22 - 24 : | 678 |
| 25 - 29 : | 985 |
| 30 - 34 : | 929 |
| 35 - 39 : | 1060 |
| 40 - 44 : | 1179 |
| 45 - 49 : | 1088 |
| 50 - 54 : | 973 |
| 55 - 59 : | 689 |
| 60 - 61 : | 268 |
| 62 - 64 : | 336 |
| 65 - 66 : | 228 |
| 67 - 69 : | 361 |
| 70 - 74 : | 555 |
| 75 - 79 : | 532 |
| 80 - 84 : | 341 |
| 85+ : | 238 |
Population by age for females in Lewiston, Idaho :
| 18 - 19 : | 562 |
| 20 : | 251 |
| 21 : | 237 |
| 22 - 24 : | 661 |
| 25 - 29 : | 903 |
| 30 - 34 : | 973 |
| 35 - 39 : | 1052 |
| 40 - 44 : | 1175 |
| 45 - 49 : | 1095 |
| 50 - 54 : | 972 |
| 55 - 59 : | 818 |
| 60 - 61 : | 268 |
| 62 - 64 : | 374 |
| 65 - 66 : | 255 |
| 67 - 69 : | 427 |
| 70 - 74 : | 640 |
| 75 - 79 : | 652 |
| 80 - 84 : | 524 |
| 85+ : | 512 |
The total amount of households in Lewiston, Idaho is 12795. With 30242 people of the population in these households. The average household size is 2.36.
23857 people in Lewiston, Idaho are part of a family. The average family size in Lewiston is 2.88 people.
There are 4889 married families in Lewiston, Idaho.
Number of married families by number of members in the family :
| 0 - 2 : | 714 | 3 - 4 : | 493 | 5 : | 264 | 6 - 11 : | 1723 | 12 - 17 : | 1695 |