| Index | Mercersburg | Pennsylvania | National |
| Income per capita | $46,419 | $45,532 | $44,883 |
| Median household income | $75,716 | $80,478 | $81,333 |
| Median income owner occupied | $112,942 | $100,571 | $106,172 |
| Median income renter occupied | $49,594 | $46,621 | $52,080 |
| Median earnings male | $53,998 | $57,544 | $54,343 |
| Median earnings female | $41,629 | $39,017 | $38,439 |
| Unemployment rate | 2.3% | 4.7% | 4.9% |
| Poverty level | 7.7% | 13.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 21.1% | 21.1% |
| Manufacturing sector | 15.3% | 15.3% |
| Financial & insurance services | 0.7% | 0.7% |
| Wholesale & retail services | 17.1% | 17.1% |
| Public administration | 4.2% | 4.2% |
| Transportation, warehousing & utilities | 3.6% | 3.6% |
| Education, health & social services | 11.1% | 11.1% |
| Other | 26.9% | 26.9% |
| City | Population | Household Income | National Avg. |
| Fort Loudon, PA | 1,211 | $149,290 | 83.6% |
| Pecktonville, MD | 299 | $129,531 | 59.3% |
| Paramount-Long Meadow, MD | 2,902 | $128,434 | 57.9% |
| Fountainhead-Orchard Hills, MD | 6,113 | $112,071 | 37.8% |
| Halfway, MD | 11,181 | $102,627 | 26.2% |
| Mercersburg, PA | 1,737 | $75,716 | 6.9% |
| City | Population | Household Income | National Avg. |
| Reinbeck, IA | 1,737 | $103,984 | 27.8% |
| Hancock, MD | 1,737 | $64,657 | 20.5% |
| East Millinocket, ME | 1,737 | $66,906 | 17.7% |
| Navarre, OH | 1,737 | $75,496 | 7.2% |
| Woodbranch, TX | 1,737 | $103,541 | 27.3% |
| Mercersburg, PA | 1,737 | $75,716 | 6.9% |