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Maryland counties
24 counties in Maryland, sorted by population. Every county's ZIPs are included in the Maryland CSV — $7.
| County | ZIP codes | Population | Median HH income | |
|---|---|---|---|---|
| Baltimore | 57 | 1.2M | $92,418 | View → |
| Montgomery | 53 | 1.2M | $138,859 | View → |
| Prince George's | 40 | 1.1M | $103,590 | View → |
| Baltimore city | 32 | 945.6K | $71,068 | View → |
| Anne Arundel | 42 | 652.5K | $125,736 | View → |
| Howard | 25 | 447.5K | $151,817 | View → |
| Frederick | 35 | 368.7K | $128,029 | View → |
| Harford | 24 | 279.3K | $114,885 | View → |
| Carroll | 15 | 246.8K | $126,380 | View → |
| Charles | 25 | 226K | $127,917 | View → |
| Washington | 21 | 174K | $83,029 | View → |
| St. Mary's | 27 | 118.7K | $125,163 | View → |
| Wicomico | 16 | 106.7K | $75,432 | View → |
| Cecil | 15 | 105K | $93,746 | View → |
| Calvert | 14 | 97.3K | $135,733 | View → |
| Worcester | 12 | 97K | $78,597 | View → |
| Allegany | 16 | 69.6K | $59,875 | View → |
| Queen Anne's | 16 | 66.4K | $105,073 | View → |
| Garrett | 12 | 46.6K | $63,742 | View → |
| Talbot | 16 | 39K | $84,984 | View → |
| Dorchester | 17 | 37.7K | $60,474 | View → |
| Caroline | 10 | 36.2K | $73,153 | View → |
| Somerset | 11 | 33.3K | $64,170 | View → |
| Kent | 9 | 24.4K | $82,499 | View → |