| Index | Preston | Maryland | National |
| Income per capita | $43,623 | $55,489 | $44,883 |
| Median household income | $85,898 | $112,126 | $81,333 |
| Median income owner occupied | $124,557 | $142,381 | $106,172 |
| Median income renter occupied | $47,771 | $70,540 | $52,080 |
| Median earnings male | $51,393 | $69,331 | $54,343 |
| Median earnings female | $52,977 | $51,519 | $38,439 |
| Unemployment rate | 1.3% | 4.8% | 4.9% |
| Poverty level | 4.9% | 9.9% | 15.1% |


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| 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 | 181 | $239,487 | 194.5% |
| Queen Anne, MD | 1,216 | $206,864 | 154.3% |
| Cordova, MD | 562 | $155,774 | 91.5% |
| Oxford, MD | 844 | $107,713 | 32.4% |
| Sharptown, MD | 710 | $105,338 | 29.5% |
| Preston, MD | 882 | $85,898 | 5.6% |
| City | Population | Household Income | National Avg. |
| Greers Ferry, AR | 882 | $70,488 | 13.3% |
| Jupiter Island, FL | 882 | $228,107 | 180.5% |
| Exira, IA | 882 | $57,535 | 29.3% |
| Nickerson, KS | 882 | $80,883 | 0.6% |
| Burgin, KY | 882 | $91,561 | 12.6% |
| Preston, MD | 882 | $85,898 | 5.6% |