| Index | McCormick | South Carolina | National |
| Income per capita | $15,591 | $25,521 | $29,829 |
| Median household income | $37,841 | $46,898 | $55,322 |
| Median income owner occupied | $50,972 | $57,389 | $70,586 |
| Median income renter occupied | $26,402 | $29,505 | $35,192 |
| Median earnings male | $25,729 | $32,196 | $36,919 |
| Median earnings female | $19,533 | $23,580 | $26,250 |
| Unemployment rate | 1.8% | 5.0% | 4.7% |
| Poverty level | 22.0% | 17.2% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 8.4% | 8.4% |
| Manufacturing sector | 21.1% | 21.1% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 13.0% | 13.0% |
| Public administration | 25.1% | 25.1% |
| Transportation, warehousing & utilities | 1.6% | 1.6% |
| Education, health & social services | 15.7% | 15.7% |
| Other | 14.3% | 14.3% |
| City | Population | Household Income | National Avg. |
| Modoc, SC | 366 | $125,776 | 127.4% |
| Plum Branch, SC | 92 | $118,250 | 113.7% |
| Promised Land, SC | 555 | $48,652 | 12.1% |
| Parksville, SC | 135 | $45,357 | 18.0% |
| Troy, SC | 145 | $39,125 | 29.3% |
| McCormick, SC | 3,043 | $37,841 | 31.6% |
| City | Population | Household Income | National Avg. |
| Bishopville, SC | 3,043 | $32,297 | 41.6% |
| East Gaffney, SC | 3,043 | $27,500 | 50.3% |
| West Brattleboro, VT | 3,042 | $34,696 | 37.3% |
| Longtown, OK | 3,044 | $51,056 | 7.7% |
| Algoma, WI | 3,044 | $60,758 | 9.8% |
| McCormick, SC | 3,043 | $37,841 | 31.6% |