| Index | Rockville | South Carolina | National |
| Income per capita | $122,950 | $37,827 | $44,883 |
| Median household income | $158,798 | $68,647 | $81,333 |
| Median income owner occupied | $163,136 | $87,094 | $106,172 |
| Median income renter occupied | $0 | $44,371 | $52,080 |
| Median earnings male | $174,348 | $46,426 | $54,343 |
| Median earnings female | $91,449 | $34,595 | $38,439 |
| Unemployment rate | 0.0% | 5.3% | 4.9% |
| Poverty level | 0.8% | 17.2% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 10.7% | 10.7% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 25.0% | 25.0% |
| Public administration | 10.7% | 10.7% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 10.7% | 10.7% |
| Other | 42.9% | 42.9% |
| City | Population | Household Income | National Avg. |
| Kiawah Island, SC | 1,832 | $300,296 | 269.2% |
| Seabrook Island, SC | 1,864 | $147,189 | 81.0% |
| Folly Beach, SC | 2,735 | $131,824 | 62.1% |
| James Island, SC | 12,534 | $121,553 | 49.5% |
| Meggett, SC | 1,167 | $118,238 | 45.4% |
| Rockville, SC | 137 | $158,798 | 95.2% |
| City | Population | Household Income | National Avg. |
| Hindsville, AR | 137 | $115,387 | 41.9% |
| Blockton, IA | 137 | $62,582 | 23.1% |
| New Burnside, IL | 137 | $45,737 | 43.8% |
| Sharon, KS | 137 | $60,736 | 25.3% |
| Bingham Lake, MN | 137 | $114,823 | 41.2% |
| Rockville, SC | 137 | $158,798 | 95.2% |