| Index | Eighty Four | Pennsylvania | National |
| Income per capita | $41,236 | $45,532 | $44,883 |
| Median household income | $48,631 | $80,478 | $81,333 |
| Median income owner occupied | $64,271 | $100,571 | $106,172 |
| Median income renter occupied | $0 | $46,621 | $52,080 |
| Median earnings male | $86,880 | $57,544 | $54,343 |
| Median earnings female | $49,681 | $39,017 | $38,439 |
| Unemployment rate | 0.0% | 4.7% | 4.9% |
| Poverty level | 22.0% | 13.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 44.9% | 44.9% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 10.2% | 10.2% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 44.9% | 44.9% |
| City | Population | Household Income | National Avg. |
| McMurray, PA | 4,299 | $211,367 | 159.9% |
| Green Hills, PA | 14 | $166,692 | 105.0% |
| Upper St. Clair, PA | 20,221 | $165,254 | 103.2% |
| Thompsonville, PA | 3,759 | $158,326 | 94.7% |
| Baidland, PA | 1,556 | $151,183 | 85.9% |
| Eighty Four, PA | 355 | $48,631 | 40.2% |
| City | Population | Household Income | National Avg. |
| Harrell, AR | 355 | $107,379 | 32.0% |
| Patterson, AR | 355 | $39,786 | 51.1% |
| Shirley, AR | 355 | $66,959 | 17.7% |
| Crows Landing, CA | 355 | $45,658 | 43.9% |
| Mad River, CA | 355 | $0 | 100.0% |
| Eighty Four, PA | 355 | $48,631 | 40.2% |