| Index | St. Clair | Pennsylvania | National |
| Income per capita | $40,927 | $45,532 | $44,883 |
| Median household income | $72,456 | $80,478 | $81,333 |
| Median income owner occupied | $77,040 | $100,571 | $106,172 |
| Median income renter occupied | $38,361 | $46,621 | $52,080 |
| Median earnings male | $54,351 | $57,544 | $54,343 |
| Median earnings female | $34,673 | $39,017 | $38,439 |
| Unemployment rate | 4.0% | 4.7% | 4.9% |
| Poverty level | 17.8% | 13.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 20.9% | 20.9% |
| Manufacturing sector | 22.3% | 22.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 21.2% | 21.2% |
| Public administration | 7.0% | 7.0% |
| Transportation, warehousing & utilities | 9.1% | 9.1% |
| Education, health & social services | 8.2% | 8.2% |
| Other | 11.3% | 11.3% |
| City | Population | Household Income | National Avg. |
| Oneida, PA | 368 | $205,448 | 152.6% |
| Marlin, PA | 404 | $187,881 | 131.0% |
| Englewood, PA | 724 | $140,202 | 72.4% |
| Hometown, PA | 1,576 | $135,177 | 66.2% |
| Edenburg, PA | 729 | $118,586 | 45.8% |
| St. Clair, PA | 2,948 | $72,456 | 10.9% |
| City | Population | Household Income | National Avg. |
| Watonga, OK | 2,947 | $65,025 | 20.1% |
| New Hope, AL | 2,949 | $107,795 | 32.5% |
| Lido Beach, NY | 2,949 | $243,455 | 199.3% |
| Mountain View, AR | 2,946 | $34,912 | 57.1% |
| Gladwin, MI | 2,946 | $58,293 | 28.3% |
| St. Clair, PA | 2,948 | $72,456 | 10.9% |