| Index | Clay City | Illinois | National |
| Median home price | $52,500 | $174,800 | $184,700 |
| Median rent asked | $551 | $925 | $949 |
| Avg. people per household | 2.4 | 2.6 | 2.6 |
| Owner occupied households | 74.1% | 66.0% | 63.6% |
| Renter occupied households | 25.9% | 34.0% | 36.4% |
| City, State | Population | Home Price | National Avg. |
| Sailor Springs, IL | 99 | $27,500 | 85% |
| Johnsonville, IL | 58 | $31,900 | 83% |
| Iola, IL | 148 | $37,800 | 80% |
| Noble, IL | 604 | $48,100 | 74% |
| Cisne, IL | 611 | $53,500 | 71% |
| Clay City, IL | 824 | $52,500 | 72% |
| City, State | Population | Home Price | National Avg. |
| Elmwood, WI | 824 | $92,500 | 50% |
| Garnavillo, IA | 824 | $83,100 | 55% |
| Gilbert, SC | 824 | $134,500 | 27% |
| Utica, NE | 824 | $121,800 | 34% |
| Hartford, IA | 824 | $102,400 | 45% |
| Clay City, IL | 824 | $52,500 | 72% |