ZIP Code 21404
21404 is one of Maryland's ZIP codes, delivering to addresses in Annapolis, Anne Arundel County.
- City
- Annapolis
- County
- Anne Arundel County
- State
- Maryland
- Prefix
- 214xx
Where this code sits
21404 is part of the 214xx range, the group of codes handled by one mail processing centre. Annapolis is served by 8 ZIP codes in total; the full list, with the county each falls in, is on the Annapolis page.
Annapolis Maryland ZIP codes →
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 21404 delivers to without sharing its boundary.
- 227 Area code 227
- 240 Area code 240
- 301 Area code 301
- 410 Area code 410
- 443 Area code 443
- 667 Area code 667
ZIP codes nearest 21404
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 21402 | 1.3 mi | Annapolis, MD |
| ZIP code 21403 | 1.8 mi | Annapolis, MD |
| ZIP code 21401 | 3.2 mi | Annapolis, MD |
| ZIP code 21012 | 4.8 mi | Arnold, MD |
| ZIP code 21405 | 4.8 mi | Annapolis, MD |
| ZIP code 21037 | 5.2 mi | Edgewater, MD |
| ZIP code 21409 | 5.3 mi | Annapolis, MD |
| ZIP code 21140 | 5.4 mi | Riva, MD |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 21404. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.