| Index | Cobb Island | Maryland | National |
| Median home price | $206,300 | $290,400 | $184,700 |
| Median rent asked | $1,857 | $1,264 | $949 |
| Avg. people per household | 2.7 | 2.6 | 2.6 |
| Owner occupied households | 79.5% | 66.5% | 63.6% |
| Renter occupied households | 20.5% | 33.5% | 36.4% |
| Population | Home Price | National Avg. | |
| Dahlgren Center, VA | 696 | $0 | 100% |
| Rock Point, MD | 63 | $0 | 100% |
| Montross, VA | 553 | $195,600 | 6% |
| Colonial Beach, VA | 3,591 | $214,000 | 16% |
| Charlotte Hall, MD | 1,740 | $251,700 | 36% |
| Cobb Island, MD | 1,119 | $206,300 | 12% |
| Population | Home Price | National Avg. | |
| Springmont, PA | 1,119 | $162,900 | 12% |
| Parkers Prairie, MN | 1,119 | $109,700 | 41% |
| North DeLand, FL | 1,119 | $143,500 | 22% |
| Twin Lakes, NM | 1,119 | $54,300 | 71% |
| Sheridan, CA | 1,120 | $269,900 | 46% |
| Cobb Island, MD | 1,119 | $206,300 | 12% |
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