What homes there are
U.S. Census Bureau, ACS 5-year, 2020–2024
| Measure | Olney | Richland County | Illinois | United States |
|---|---|---|---|---|
| Detached house | 81% | 77% | 58% | 61% |
| Attached house | Unreliable estimate | Unreliable estimate | 6% | 6% |
| Building of 2 to 4 | 6% | 4% | 12% | 8% |
| Apartments (5 or more) | Unreliable estimate | Unreliable estimate | 22% | 19% |
| Mobile home | 6% | 14% | 2% | 6% |
| Boat, RV and other | Unreliable estimate | Unreliable estimate | 0% | 0% |
Detached houses, standing on their own, make up 81% of homes here, against 77% in Richland County.
| Measure | Olney | Richland County | Illinois | United States |
|---|---|---|---|---|
| Before 1960 | 38% | 33% | 38% | 26% |
| 1960–1979 | 35% | 33% | 26% | 24% |
| 1980–1999 | 17% | 21% | 20% | 25% |
| 2000–2009 | 7% | 8% | 11% | 14% |
| 2010 or later | Unreliable estimate | 5% | 6% | 11% |
Homes in Olney are older: the typical year built is 1968; in Richland County, 1973.
There are fewer big homes in Olney than in Richland County: 54% have 3 bedrooms or more, against 58%.