| Index | Barnwell | South Carolina | National |
| Income per capita | $17,986 | $25,521 | $29,829 |
| Median household income | $30,750 | $46,898 | $55,322 |
| Median income owner occupied | $60,281 | $57,389 | $70,586 |
| Median income renter occupied | $11,857 | $29,505 | $35,192 |
| Median earnings male | $28,803 | $32,196 | $36,919 |
| Median earnings female | $18,438 | $23,580 | $26,250 |
| Unemployment rate | 2.7% | 5.0% | 4.7% |
| Poverty level | 34.0% | 17.2% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 40.2% | 40.2% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 8.8% | 8.8% |
| Public administration | 3.3% | 3.3% |
| Transportation, warehousing & utilities | 7.2% | 7.2% |
| Education, health & social services | 16.2% | 16.2% |
| Other | 24.4% | 24.4% |
| City | Population | Household Income | National Avg. |
| Snelling, SC | 224 | $50,500 | 8.7% |
| Norway, SC | 392 | $40,875 | 26.1% |
| Sycamore, SC | 146 | $40,272 | 27.2% |
| Kline, SC | 150 | $34,286 | 38.0% |
| Williston, SC | 2,950 | $34,149 | 38.3% |
| Barnwell, SC | 4,373 | $30,750 | 44.4% |
| City | Population | Household Income | National Avg. |
| Hampden, ME | 4,373 | $90,509 | 63.6% |
| Okauchee Lake, WI | 4,373 | $108,875 | 96.8% |
| La Joya, TX | 4,374 | $27,894 | 49.6% |
| North Terre Haute, IN | 4,371 | $46,434 | 16.1% |
| Isle of Palms, SC | 4,371 | $128,523 | 132.3% |
| Barnwell, SC | 4,373 | $30,750 | 44.4% |