| Index | Preston | Maryland | National |
| Income per capita | $29,517 | $37,756 | $29,829 |
| Median household income | $58,438 | $76,067 | $55,322 |
| Median income owner occupied | $84,286 | $95,994 | $70,586 |
| Median income renter occupied | $32,000 | $47,333 | $35,192 |
| Median earnings male | $34,607 | $46,495 | $36,919 |
| Median earnings female | $36,250 | $35,612 | $26,250 |
| Unemployment rate | 1.3% | 4.5% | 4.7% |
| Poverty level | 4.9% | 9.9% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 22.4% | 22.4% |
| Manufacturing sector | 5.4% | 5.4% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 22.8% | 22.8% |
| Public administration | 7.1% | 7.1% |
| Transportation, warehousing & utilities | 12.9% | 12.9% |
| Education, health & social services | 4.1% | 4.1% |
| Other | 20.3% | 20.3% |
| City | Population | Household Income | National Avg. |
| Williston, MD | 174 | $160,192 | 189.6% |
| Queen Anne, MD | 1,183 | $139,792 | 152.7% |
| Cordova, MD | 551 | $103,295 | 86.7% |
| Oxford, MD | 827 | $72,404 | 30.9% |
| Sharptown, MD | 687 | $70,625 | 27.7% |
| Preston, MD | 861 | $58,438 | 5.6% |
| City | Population | Household Income | National Avg. |
| Rancho Mesa Verde, AZ | 861 | $25,960 | 53.1% |
| Happy Camp, CA | 861 | $30,000 | 45.8% |
| Linn Valley, KS | 861 | $55,938 | 1.1% |
| Heritage Creek, KY | 861 | $58,750 | 6.2% |
| Utica, MS | 861 | $24,737 | 55.3% |
| Preston, MD | 861 | $58,438 | 5.6% |
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