| Index | Clark | Pennsylvania | National |
| Income per capita | $61,406 | $45,532 | $44,883 |
| Median household income | $122,405 | $80,478 | $81,333 |
| Median income owner occupied | $131,871 | $100,571 | $106,172 |
| Median income renter occupied | $52,772 | $46,621 | $52,080 |
| Median earnings male | $53,819 | $57,544 | $54,343 |
| Median earnings female | $48,408 | $39,017 | $38,439 |
| Unemployment rate | 3.7% | 4.7% | 4.9% |
| Poverty level | 2.7% | 13.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 20.8% | 20.8% |
| Manufacturing sector | 14.4% | 14.4% |
| Financial & insurance services | 3.2% | 3.2% |
| Wholesale & retail services | 10.4% | 10.4% |
| Public administration | 0.8% | 0.8% |
| Transportation, warehousing & utilities | 10.4% | 10.4% |
| Education, health & social services | 17.6% | 17.6% |
| Other | 22.4% | 22.4% |
| City | Population | Household Income | National Avg. |
| Lake Latonka, PA | 786 | $125,886 | 54.8% |
| Reynolds Heights, PA | 1,983 | $107,067 | 31.6% |
| Volant, PA | 102 | $102,574 | 26.1% |
| New Wilmington, PA | 2,270 | $100,606 | 23.7% |
| West Middlesex, PA | 1,179 | $93,454 | 14.9% |
| Clark, PA | 578 | $122,405 | 50.5% |
| City | Population | Household Income | National Avg. |
| Fisk, MO | 578 | $68,220 | 16.1% |
| Paguate, NM | 578 | $49,493 | 39.1% |
| Westminster, OH | 578 | $85,415 | 5.0% |
| Allenport, PA | 578 | $67,061 | 17.5% |
| Atlantic, VA | 578 | $75,472 | 7.2% |
| Clark, PA | 578 | $122,405 | 50.5% |