ZIP code 21837
Where is ZIP code 21837?
Mardela Springs, Maryland
Wicomico County · Standard ZIP code
ZIP code 21837 belongs to Mardela Springs, Maryland in Wicomico County. 21837 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 302, 410, 443 and 667. About 2,891 people live in the 21837 area, where the median household income is $62,880. The closest ZIP codes are 21861 (Sharptown, 3.8 mi north), 21830 (Hebron, 6.3 mi southeast) and 21869 (Vienna, 7.1 mi west).
| ZIP code | 21837 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Mardela Springs |
| Also accepted | Mardela, Mardela Spgs |
| State | Maryland (MD) |
| County | Wicomico County |
| Time zone | Eastern Time · now |
| Area codes | 302, 410, 443, 667 |
| Coordinates | 38.4864, -75.7414 map |
| 3-digit prefix | 218 |
Population and income in 21837
| Population | 2,891 · lower than 59% of Maryland ZIP codes |
|---|---|
| People per square mile | 66 · lower than 85% of Maryland ZIP codes |
| Median age | 40.8 years · lower than 58% of Maryland ZIP codes |
| Men / women | 45% / 55% |
| Median household income | $62,880 · lower than 90% of Maryland ZIP codes |
| Income per person | $34,456 |
| Below the poverty line | 5.7% |
| Bachelor’s degree or higher | 18% of adults 25+ |
| Median home value | $227,400 · lower than 88% of Maryland ZIP codes |
| Median rent | $1,115 a month |
| Housing units | 1,179 |
| Households | 1,123 (2.57 people on average) |
| Owners / renters | 87% / 13% |
| Land area | 43.86 sq mi (plus 3.25 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21837. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21837
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21861 | Sharptown, MD | 3.8 mi N | PO Box only |
| 21830 | Hebron, MD | 6.3 mi SE | Standard |
| 21869 | Vienna, MD | 7.1 mi W | Standard |
| 21659 | Rhodesdale, MD | 8.3 mi N | Standard |
| 19931 | Bethel, DE | 8.5 mi NE | Standard |
| 19940 | Delmar, DE | 9 mi E | Standard |
| 21802 | Salisbury, MD | 9.2 mi SE | PO Box only |
| 21803 | Salisbury, MD | 9.2 mi SE | PO Box only |
| 21801 | Salisbury, MD | 9.3 mi SE | Standard |
| 21875 | Delmar, MD | 10.3 mi E | Standard |
| 19956 | Laurel, DE | 10.7 mi NE | Standard |
| 21856 | Quantico, MD | 10.8 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21837 or measure the distance to another ZIP code.
How to address mail to 21837
123 MAIN ST
MARDELA SPRINGS MD 21837
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts MARDELA and MARDELA SPGS as the city name for 21837. Adding the 4-digit ZIP+4 code (21837-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21837?
- 21837 is a Mardela Springs, Maryland ZIP code. Mardela and Mardela Spgs are also accepted as the city name.
- What county is 21837 in?
- ZIP code 21837 is in Wicomico County, Maryland.
- What time zone is ZIP code 21837 in?
- 21837 is in the Eastern Time zone (America/New_York).
- What area code is 21837?
- Phone numbers in ZIP code 21837 use area codes 302, 410, 443 and 667.
- What is the population of ZIP code 21837?
- About 2,891 people live in ZIP code 21837, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21837?
- The median household income in 21837 is $62,880 a year, lower than 90% of Maryland ZIP codes.
- What ZIP codes are near 21837?
- The nearest ZIP codes to 21837 are 21861 (Sharptown, 3.8 miles), 21830 (Hebron, 6.3 miles), 21869 (Vienna, 7.1 miles) and 21659 (Rhodesdale, 8.3 miles).