| Index | Spring Gap | Maryland | National |
| Income per capita | $37,883 | $55,489 | $44,883 |
| Median household income | $0 | $112,126 | $81,333 |
| Median income owner occupied | $0 | $142,381 | $106,172 |
| Median income renter occupied | $0 | $70,540 | $52,080 |
| Median earnings male | $0 | $69,331 | $54,343 |
| Median earnings female | $0 | $51,519 | $38,439 |
| Unemployment rate | 0.0% | 4.8% | 4.9% |
| Poverty level | 0.0% | 9.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 55.0% | 55.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 45.0% | 45.0% |
| City | Population | Household Income | National Avg. |
| Shaft, MD | 300 | $194,857 | 139.6% |
| Vale Summit, MD | 140 | $182,526 | 124.4% |
| Gilmore, MD | 315 | $135,791 | 67.0% |
| Finzel, MD | 888 | $116,106 | 42.8% |
| La Vale, MD | 4,630 | $112,234 | 38.0% |
| Spring Gap, MD | 40 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Sunrise, AK | 40 | $0 | 100.0% |
| Edgewood, CA | 40 | $119,698 | 47.2% |
| McClenney Tract, CA | 40 | $3,705 | 95.4% |
| Sequoia Crest, CA | 40 | $0 | 100.0% |
| Coleman, GA | 40 | $0 | 100.0% |
| Spring Gap, MD | 40 | $0 | 100.0% |