Zip code 21150: Simpsonville, Maryland
This zip has no delivery boundary. The map shows its post office location and nearby zip codes.
About 21150
21150 is a non-residential zip code for Simpsonville, Maryland (Howard 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 21150, see the residential zip codes in the nearby list below.
Geography
- City (USPS)
- Simpsonville
- State
- Maryland
- County
- Howard County
- Center point
- 39.2364° N, 76.9419° W
- Time zone
- Eastern Time (UTC-5, UTC-4 in summer)
- Zip type
- PO box or unique zip
Zip codes near 21150
| Zip | City | Distance | IncomeMedian income |
|---|---|---|---|
| 21041 | Ellicott City, MD · PO box | 0 mi | — |
| 21029 | Clarksville, MD | 1.8 mi | $243,542 |
| 21036 | Dayton, MD | 3.5 mi | $218,036 |
| 21042 | Ellicott City, MD | 3.8 mi | $190,061 |
| 21044 | Columbia, MD | 4 mi | $135,057 |
| 20777 | Highland, MD | 4.5 mi | $226,146 |
| 21794 | West Friendship, MD | 4.5 mi | $231,466 |
| 21737 | Glenelg, MD | 4.6 mi | $250,000+ |
| 21738 | Glenwood, MD | 5.4 mi | $250,000+ |
| 20862 | Brinklow, MD | 5.6 mi | $189,667 |
| 20759 | Fulton, MD | 5.7 mi | $250,000+ |
| 21045 | Columbia, MD | 6.4 mi | $118,563 |
Questions about 21150
What city is zip code 21150?
21150 is assigned to Simpsonville, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.
What county is 21150 in?
21150 is in Howard County, Maryland.
What time zone is 21150 in?
21150 is in Eastern Time.
What zip codes are near 21150?
The closest zip codes to 21150 are 21041, 21029, 21036, 21042, 21044.
Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21150, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.