| | Fort Mill, SC | Rockville, MD | United States |
| Unemployment Rate | 4.5% | 4.7% | 6.0% |
| Recent Job Growth | 1.6% | 0.8% | 1.6% |
| Future Job Growth | 42.3% | 30.4% | 33.5% |
| Sales Taxes | 7.0% | 6.0% | 6.2% |
| Income Taxes | 7.0% | 8.0% | 4.6% |
| Income per Cap. | $44,187 | $57,336 | $37,638 |
| Household Income | $120,665 | $116,031 | $69,021 |
| Family Median Income | $132,363 | $136,932 | $85,028 |
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| Est. Households By Income | | | |
| | Fort Mill, SC | Rockville, MD | United States |
| Income Less Than 15K | 2.6% | 5.3% | 9.4% |
| Income between 15K and 20K | 1.7% | 2.2% | 3.8% |
| Income between 20K and 30K | 3.9% | 4.0% | 8.1% |
| Income between 30K and 40K | 5.0% | 2.6% | 8.0% |
| Income between 40K and 50K | 6.4% | 5.0% | 7.6% |
| Income between 50K and 60K | 4.0% | 5.4% | 7.2% |
| Income between 60K and 75K | 6.9% | 6.8% | 9.6% |
| Income between 75K and 100K | 10.5% | 11.5% | 12.8% |
| Income between 100K and 150K | 24.3% | 20.6% | 16.3% |
| Income between 150K and 200K | 17.7% | 15.0% | 7.8% |
| Income greater than 200K | 17.2% | 21.7% | 9.5% |
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| Population By Occupation | | | |
| | Fort Mill, SC | Rockville, MD | United States |
| Management, business, finance | 30.6% | 23.8% | 16.4% |
| Engineering, computers, science | 8.1% | 20.4% | 6.5% |
| Community, social services | 2.9% | 2.0% | 1.8% |
| Legal | 2.4% | 2.9% | 1.2% |
| Education, library | 6.7% | 6.6% | 6.2% |
| Arts, design, media, sports, entertainment | 3.1% | 3.5% | 2.0% |
| Healthcare practitioners and technology | 4.9% | 6.0% | 6.2% |
| Healthcare support | 1.6% | 1.5% | 3.3% |
| Firefighters, law enforcement | 1.1% | 1.6% | 2.1% |
| Food preparation, serving | 2.1% | 3.8% | 5.4% |
| Building maintenance | 1.4% | 2.1% | 3.6% |
| Personal care | 3.4% | 2.6% | 2.6% |
| Sales, office, administrative support | 21.3% | 14.8% | 20.9% |
| Farming, fishing, forestry | 0.1% | 0.0% | 0.6% |
| Construction, extraction, maintenance/repair | 3.0% | 4.6% | 8.1% |
| Production, transportation, material moving | 7.3% | 3.9% | 13.1% |