| Index | McKnightstown | Pennsylvania | National |
| Income per capita | $36,555 | $30,137 | $29,829 |
| Median household income | $94,591 | $54,895 | $55,322 |
| Median income owner occupied | $103,375 | $68,587 | $70,586 |
| Median income renter occupied | $0 | $31,605 | $35,192 |
| Median earnings male | $43,405 | $39,478 | $36,919 |
| Median earnings female | $0 | $26,440 | $26,250 |
| Unemployment rate | 0.0% | 4.5% | 4.7% |
| Poverty level | 11.6% | 13.3% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 4.7% | 4.7% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 59.4% | 59.4% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 15.6% | 15.6% |
| Other | 20.3% | 20.3% |
| City | Population | Household Income | National Avg. |
| Lake Heritage, PA | 2,788 | $114,833 | 107.6% |
| Guilford, PA | 3,571 | $105,341 | 90.4% |
| Aspers, PA | 193 | $94,875 | 71.5% |
| Ringgold, MD | 90 | $92,604 | 67.4% |
| Smithsburg, MD | 2,977 | $88,625 | 60.2% |
| McKnightstown, PA | 501 | $94,591 | 71.0% |
| City | Population | Household Income | National Avg. |
| Cullom, IL | 501 | $50,000 | 9.6% |
| Ribera, NM | 501 | $0 | 100.0% |
| McCurtain, OK | 501 | $0 | 100.0% |
| Renningers, PA | 501 | $69,648 | 25.9% |
| Summerhill, PA | 501 | $60,893 | 10.1% |
| McKnightstown, PA | 501 | $94,591 | 71.0% |
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