| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2020) |
|---|
| Laurel | Standard | $65,450 |
| Glen Echo | Standard | $223,830 |
| Bethesda | Standard | $232,170 |
| Chevy Chase | Standard | $330,910 |
| Bethesda | Standard | $311,790 |
| Bethesda | Standard | $311,770 |
| Cabin John | Standard | $254,740 |
| Olney | Standard | $117,000 |
| Brookeville | Standard | $150,090 |
| Poolesville | Standard | $133,780 |
| Barnesville | Standard | $118,710 |
| Beallsville | Standard | $113,190 |
| Boyds | Standard | $132,540 |
| Dickerson | Standard | $172,030 |
| Rockville | Standard | $129,040 |
| Rockville | Standard | $64,470 |
| Rockville | Standard | $120,190 |
| Rockville | Standard | $97,020 |
| Potomac | Standard | $355,710 |
| Derwood | Standard | $118,220 |
| Sandy Spring | Standard | $182,410 |
| Ashton | Standard | $177,740 |
| Brinklow | Standard | $162,390 |
| Burtonsville | Standard | $73,000 |
| Spencerville | Standard | $152,890 |
| Clarksburg | Standard | $113,340 |
| Damascus | Standard | $88,680 |
| Germantown | Standard | $75,080 |
| Germantown | Standard | $72,020 |
| Gaithersburg | Standard | $53,550 |
| Gaithersburg | Standard | $126,290 |
| Gaithersburg | Standard | $66,050 |
| Gaithersburg | Standard | $141,780 |
| Montgomery Village | Standard | $59,270 |
| Kensington | Standard | $157,820 |
| Silver Spring | Standard | $83,590 |
| Silver Spring | Standard | $70,330 |
| Silver Spring | Standard | $43,560 |
| Silver Spring | Standard | $70,370 |
| Silver Spring | Standard | $102,220 |
| Silver Spring | Standard | $62,530 |
| Silver Spring | Standard | $96,400 |
| Takoma Park | Standard | $79,480 |
| Mount Airy | Standard | $105,860 |
Source: US Internal Revenue Service