ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2020) |
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| Annapolis Junction | Standard | $82,420 |
| Laurel | Standard | $95,900 |
| Fulton | Standard | $269,620 |
| Savage | Standard | $62,310 |
| Highland | Standard | $225,590 |
| Jessup | Standard | $63,580 |
| Brookeville | Standard | $150,090 |
| Clarksville | Standard | $227,240 |
| Dayton | Standard | $194,020 |
| Ellicott City | Standard | $162,970 |
| Ellicott City | Standard | $116,060 |
| Columbia | Standard | $101,480 |
| Columbia | Standard | $82,000 |
| Columbia | Standard | $94,260 |
| Elkridge | Standard | $86,300 |
| Hanover | Standard | $92,710 |
| Marriottsville | Standard | $151,960 |
| Woodstock | Standard | $128,790 |
| Catonsville | Standard | $81,040 |
| Cooksville | Standard | $165,450 |
| Glenelg | Standard | $218,630 |
| Glenwood | Standard | $230,050 |
| Mount Airy | Standard | $105,860 |
| Sykesville | Standard | $107,150 |
| West Friendship | Standard | $183,720 |
| Woodbine | Standard | $139,440 |
Source: US Internal Revenue Service