Zip code 21404: Annapolis, Maryland
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 21404
21404 is a non-residential zip code for Annapolis, Maryland (Anne Arundel County). It has no delivery area of its own, so the Census Bureau doesn't publish population or housing figures for it. Codes like this are usually assigned to post office boxes, or to a single organization such as a university, hospital, government agency or large company that gets enough mail to need its own zip code.
For a picture of the people who live around 21404, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Annapolis
- State
- Maryland
- County
- Anne Arundel County
- Center point
- 38.9784° N, 76.4922° W
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- Zip type
- PO box or unique zip
Zip codes near 21404
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 21402 | Annapolis, MD | 1.3 mi | $80,893 |
| 21403 | Annapolis, MD | 2.5 mi | $123,329 |
| 21401 | Annapolis, MD | 3.3 mi | $123,381 |
| 21409 | Annapolis, MD | 3.8 mi | $147,151 |
| 21405 | Annapolis, MD | 4.6 mi | $160,703 |
| 21012 | Arnold, MD | 4.7 mi | $139,432 |
| 21037 | Edgewater, MD | 4.9 mi | $145,787 |
| 21140 | Riva, MD | 5.4 mi | $170,156 |
| 21062 | Glen Burnie, MD · PO box | 5.5 mi | — |
| 21123 | Pasadena, MD · PO box | 5.5 mi | — |
| 21411 | Annapolis, MD · PO box | 5.5 mi | — |
| 21412 | Annapolis, MD · PO box | 5.5 mi | — |
Questions about 21404
What city is zip code 21404?
21404 is assigned to Annapolis, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 21404 in?
21404 is in Anne Arundel County, Maryland.
What time zone is 21404 in?
21404 is in Eastern Time.
What zip codes are near 21404?
The closest zip codes to 21404 are 21402, 21403, 21401, 21409, 21405.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21404, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.