Total number led homes in O'neill, by type | |
| Total Home Population: | 1,593 |
| Population of Family homes: | 970 |
| Population of 15 to 24 year olds: | 36 |
| Population of 25 to 34 year olds: | 156 |
| Population of 35 to 44 year olds: | 155 |
| Population of 45 to 54 year olds: | 204 |
| Population of 55 to 59 year olds: | 107 |
| Population of 60 to 64 year olds: | 83 |
| Population of 65 to 74 year olds: | 108 |
| Population of 75 to 84 year olds: | 91 |
| Population of 85 year olds and over: | 30 |
| Population of Nonfamily Homes: | 623 |
| Population of 15 to 24 year olds: | 43 |
| Population of 25 to 34 year olds: | 63 |
| Population of 35 to 44 year olds: | 44 |
| Population of 45 to 54 year olds: | 106 |
| Population of 55 to 59 year olds: | 52 |
| Population of 60 to 64 year olds: | 34 |
| Population of 65 to 74 year olds: | 80 |
| Population of 75 to 84 year olds: | 122 |
| Population of 85 year olds and over: | 79 |