| Index | Mount Joy | Pennsylvania | National |
| Income per capita | $52,116 | $45,532 | $44,883 |
| Median household income | $96,904 | $80,478 | $81,333 |
| Median income owner occupied | $116,042 | $100,571 | $106,172 |
| Median income renter occupied | $60,613 | $46,621 | $52,080 |
| Median earnings male | $62,445 | $57,544 | $54,343 |
| Median earnings female | $49,924 | $39,017 | $38,439 |
| Unemployment rate | 1.6% | 4.7% | 4.9% |
| Poverty level | 10.3% | 13.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 6.6% | 6.6% |
| Manufacturing sector | 20.2% | 20.2% |
| Financial & insurance services | 2.8% | 2.8% |
| Wholesale & retail services | 12.1% | 12.1% |
| Public administration | 4.6% | 4.6% |
| Transportation, warehousing & utilities | 14.6% | 14.6% |
| Education, health & social services | 12.9% | 12.9% |
| Other | 24.0% | 24.0% |
| City | Population | Household Income | National Avg. |
| Mount Gretna, PA | 171 | $201,400 | 147.6% |
| Penryn, PA | 1,085 | $179,192 | 120.3% |
| Stonybrook, PA | 3,270 | $174,617 | 114.7% |
| Refton, PA | 617 | $153,611 | 88.9% |
| Grantley, PA | 4,408 | $152,676 | 87.7% |
| Mount Joy, PA | 8,453 | $96,904 | 19.1% |
| City | Population | Household Income | National Avg. |
| Cheviot, OH | 8,453 | $68,581 | 15.7% |
| Nevada, MO | 8,454 | $54,832 | 32.6% |
| Milton, WA | 8,454 | $114,533 | 40.8% |
| Orono, MN | 8,455 | $249,971 | 207.3% |
| Orting, WA | 8,457 | $125,503 | 54.3% |
| Mount Joy, PA | 8,453 | $96,904 | 19.1% |