| Index | Williamstown | Pennsylvania | National |
| Income per capita | $34,122 | $45,532 | $44,883 |
| Median household income | $72,907 | $80,478 | $81,333 |
| Median income owner occupied | $79,026 | $100,571 | $106,172 |
| Median income renter occupied | $58,650 | $46,621 | $52,080 |
| Median earnings male | $60,466 | $57,544 | $54,343 |
| Median earnings female | $31,861 | $39,017 | $38,439 |
| Unemployment rate | 4.2% | 4.7% | 4.9% |
| Poverty level | 19.6% | 13.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 8.5% | 8.5% |
| Manufacturing sector | 24.0% | 24.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 26.0% | 26.0% |
| Public administration | 6.9% | 6.9% |
| Transportation, warehousing & utilities | 12.2% | 12.2% |
| Education, health & social services | 7.7% | 7.7% |
| Other | 13.4% | 13.4% |
| City | Population | Household Income | National Avg. |
| Fort Indiantown Gap, PA | 66 | $242,578 | 198.3% |
| Muir, PA | 466 | $151,812 | 86.7% |
| Jonestown, PA | 1,977 | $124,155 | 52.7% |
| Fredericksburg, PA | 1,852 | $120,193 | 47.8% |
| Orwin, PA | 203 | $116,353 | 43.1% |
| Williamstown, PA | 1,208 | $72,907 | 10.4% |
| City | Population | Household Income | National Avg. |
| Clifton, IL | 1,208 | $106,823 | 31.3% |
| Loving, NM | 1,208 | $62,617 | 23.0% |
| Skyline-Ganipa, NM | 1,208 | $86,084 | 5.8% |
| Chesapeake, OH | 1,208 | $72,198 | 11.2% |
| Lyons, OR | 1,208 | $105,070 | 29.2% |
| Williamstown, PA | 1,208 | $72,907 | 10.4% |