| Index | Rockville | South Carolina | National |
| Income per capita | $82,235 | $25,521 | $29,829 |
| Median household income | $106,875 | $46,898 | $55,322 |
| Median income owner occupied | $108,125 | $57,389 | $70,586 |
| Median income renter occupied | $0 | $29,505 | $35,192 |
| Median earnings male | $118,125 | $32,196 | $36,919 |
| Median earnings female | $61,250 | $23,580 | $26,250 |
| Unemployment rate | 0.0% | 5.0% | 4.7% |
| 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 | 1,772 | $202,885 | 266.7% |
| Seabrook Island, SC | 1,810 | $100,265 | 81.2% |
| Folly Beach, SC | 2,664 | $89,000 | 60.9% |
| James Island, SC | 12,157 | $82,083 | 48.4% |
| Meggett, SC | 1,124 | $80,486 | 45.5% |
| Rockville, SC | 132 | $106,875 | 93.2% |
| City | Population | Household Income | National Avg. |
| Yellow Bluff, AL | 132 | $9,506 | 82.8% |
| Vallecito, CA | 132 | $44,375 | 19.8% |
| Otter Creek, FL | 132 | $50,250 | 9.2% |
| Blockton, IA | 132 | $42,083 | 23.9% |
| Geneva, IA | 132 | $58,750 | 6.2% |
| Rockville, SC | 132 | $106,875 | 93.2% |
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