| Index | Westphalia | Maryland | National |
| Income per capita | $81,422 | $55,489 | $44,883 |
| Median household income | $203,238 | $112,126 | $81,333 |
| Median income owner occupied | $215,791 | $142,381 | $106,172 |
| Median income renter occupied | $97,004 | $70,540 | $52,080 |
| Median earnings male | $106,737 | $69,331 | $54,343 |
| Median earnings female | $110,194 | $51,519 | $38,439 |
| Unemployment rate | 4.2% | 4.8% | 4.9% |
| Poverty level | 3.3% | 9.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 6.5% | 6.5% |
| Manufacturing sector | 3.9% | 3.9% |
| Financial & insurance services | 1.0% | 1.0% |
| Wholesale & retail services | 6.1% | 6.1% |
| Public administration | 18.0% | 18.0% |
| Transportation, warehousing & utilities | 15.0% | 15.0% |
| Education, health & social services | 20.3% | 20.3% |
| Other | 28.7% | 28.7% |
| City | Population | Household Income | National Avg. |
| Martin's Additions, MD | 1,119 | $377,432 | 364.1% |
| Chevy Chase, MD | 3,039 | $375,807 | 362.1% |
| Chevy Chase Village, MD | 1,923 | $375,077 | 361.2% |
| Chevy Chase Section Five, MD | 780 | $371,983 | 357.4% |
| Chevy Chase View, MD | 1,184 | $371,511 | 356.8% |
| Westphalia, MD | 9,518 | $203,238 | 149.9% |
| City | Population | Household Income | National Avg. |
| Middlesborough, KY | 9,518 | $43,541 | 46.5% |
| White Meadow Lake, NJ | 9,515 | $211,990 | 160.6% |
| Steger, IL | 9,523 | $74,360 | 8.6% |
| North College Hill, OH | 9,523 | $73,286 | 9.9% |
| Fishersville, VA | 9,512 | $97,631 | 20.0% |
| Westphalia, MD | 9,518 | $203,238 | 149.9% |