| Index | Irmo | South Carolina | National |
| Median home price | $145,100 | $143,600 | $184,700 |
| Median rent asked | $1,214 | $811 | $949 |
| Avg. people per household | 2.8 | 2.6 | 2.6 |
| Owner occupied households | 81.9% | 68.4% | 63.6% |
| Renter occupied households | 18.1% | 31.6% | 36.4% |
| Population | Home Price | National Avg. | |
| Peak, SC | 54 | $0 | 100% |
| Springdale CDP, SC | 2,355 | $60,300 | 67% |
| Springdale, SC | 2,878 | $90,700 | 51% |
| Jenkinsville, SC | 36 | $91,700 | 50% |
| St. Andrews, SC | 21,355 | $100,100 | 46% |
| Irmo, SC | 12,397 | $145,100 | 21% |
| Population | Home Price | National Avg. | |
| Markham, IL | 12,401 | $92,200 | 50% |
| Patchogue, NY | 12,389 | $337,900 | 83% |
| New Kensington, PA | 12,378 | $105,900 | 43% |
| Blue Ash, OH | 12,417 | $300,300 | 63% |
| Derby, CT | 12,420 | $199,300 | 8% |
| Irmo, SC | 12,397 | $145,100 | 21% |
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