ZIP code 21036
Where is ZIP code 21036?
Dayton, Maryland
Howard County · Standard ZIP code
ZIP code 21036 belongs to Dayton, Maryland in Howard County. 21036 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 227, 240, 301, 410, 443 and 667. About 2,569 people live in the 21036 area, where the median household income is $218,036. The closest ZIP codes are 21737 (Glenelg, 1.9 mi northwest), 21029 (Clarksville, 2.8 mi southeast) and 21041 (Ellicott City, 2.9 mi east).
| ZIP code | 21036 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Dayton |
| State | Maryland (MD) |
| County | Howard County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301, 410, 443, 667 |
| Coordinates | 39.2339, -76.9968 map |
| 3-digit prefix | 210 |
Population and income in 21036
| Population | 2,569 · lower than 62% of Maryland ZIP codes |
|---|---|
| People per square mile | 411 · higher than 51% of Maryland ZIP codes |
| Median age | 48.8 years · higher than 79% of Maryland ZIP codes |
| Men / women | 52% / 48% |
| Median household income | $218,036 · higher than 96% of Maryland ZIP codes |
| Income per person | $88,079 |
| Below the poverty line | 2.2% |
| Bachelor’s degree or higher | 71% of adults 25+ |
| Median home value | $881,300 · higher than 95% of Maryland ZIP codes |
| Housing units | 905 |
| Households | 882 (2.86 people on average) |
| Owners / renters | 99% / 0.7% |
| Land area | 6.25 sq mi (plus 0.36 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21036. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21036
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21737 | Glenelg, MD | 1.9 mi NW | Standard |
| 21029 | Clarksville, MD | 2.8 mi SE | Standard |
| 21041 | Ellicott City, MD | 2.9 mi E | PO Box only |
| 21150 | Simpsonville, MD | 2.9 mi E | PO Box only |
| 21738 | Glenwood, MD | 3.3 mi N | Standard |
| 20862 | Brinklow, MD | 3.6 mi S | Standard |
| 20777 | Highland, MD | 3.7 mi SE | Standard |
| 21794 | West Friendship, MD | 4.4 mi N | Standard |
| 20833 | Brookeville, MD | 4.7 mi SW | Standard |
| 20861 | Ashton, MD | 5.7 mi S | Standard |
| 20860 | Sandy Spring, MD | 6 mi S | Standard |
| 21723 | Cooksville, MD | 6 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21036 or measure the distance to another ZIP code.
How to address mail to 21036
123 MAIN ST
DAYTON MD 21036
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21036-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21036?
- 21036 is a Dayton, Maryland ZIP code.
- What county is 21036 in?
- ZIP code 21036 is in Howard County, Maryland.
- What time zone is ZIP code 21036 in?
- 21036 is in the Eastern Time zone (America/New_York).
- What area code is 21036?
- Phone numbers in ZIP code 21036 use area codes 227, 240, 301, 410, 443 and 667.
- What is the population of ZIP code 21036?
- About 2,569 people live in ZIP code 21036, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21036?
- The median household income in 21036 is $218,036 a year, higher than 96% of Maryland ZIP codes.
- What ZIP codes are near 21036?
- The nearest ZIP codes to 21036 are 21737 (Glenelg, 1.9 miles), 21029 (Clarksville, 2.8 miles), 21041 (Ellicott City, 2.9 miles) and 21150 (Simpsonville, 2.9 miles).