Zip code 21203: Baltimore, Maryland
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 21203
21203 is a non-residential zip code for Baltimore, Maryland (Baltimore city). 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 21203, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Baltimore
- State
- Maryland
- County
- Baltimore city
- Center point
- 39.2847° N, 76.6205° W
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- Zip type
- PO box or unique zip
Zip codes near 21203
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 21235 | Baltimore, MD · PO box | 0 mi | — |
| 21241 | Baltimore, MD · PO box | 0 mi | — |
| 21263 | Baltimore, MD · PO box | 0 mi | — |
| 21264 | Baltimore, MD · PO box | 0 mi | — |
| 21270 | Baltimore, MD · PO box | 0 mi | — |
| 21273 | Baltimore, MD · PO box | 0 mi | — |
| 21275 | Baltimore, MD · PO box | 0 mi | — |
| 21278 | Baltimore, MD · PO box | 0 mi | — |
| 21279 | Baltimore, MD · PO box | 0 mi | — |
| 21280 | Baltimore, MD · PO box | 0 mi | — |
| 21281 | Baltimore, MD · PO box | 0 mi | — |
| 21288 | Baltimore, MD · PO box | 0 mi | — |
Questions about 21203
What city is zip code 21203?
21203 is assigned to Baltimore, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 21203 in?
21203 is in Baltimore city, Maryland.
What time zone is 21203 in?
21203 is in Eastern Time.
What zip codes are near 21203?
The closest zip codes to 21203 are 21235, 21241, 21263, 21264, 21270.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21203, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.