ZIP code 21710
Where is ZIP code 21710?
Adamstown, Maryland
Frederick County · Standard ZIP code
ZIP code 21710 belongs to Adamstown, Maryland in Frederick County. 21710 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 and 301. About 4,661 people live in the 21710 area, where the median household income is $163,864. The closest ZIP codes are 21717 (Buckeystown, 3.1 mi northeast), 21790 (Tuscarora, 3.4 mi southwest) and 21777 (Point Of Rocks, 4.2 mi west).
| ZIP code | 21710 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Adamstown |
| Also accepted | Doubs |
| State | Maryland (MD) |
| County | Frederick County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301 |
| Coordinates | 39.291, -77.4552 map |
| 3-digit prefix | 217 |
Population and income in 21710
| Population | 4,661 · lower than 52% of Maryland ZIP codes |
|---|---|
| People per square mile | 159 · lower than 68% of Maryland ZIP codes |
| Median age | 51.9 years · higher than 84% of Maryland ZIP codes |
| Men / women | 52% / 48% |
| Median household income | $163,864 · higher than 88% of Maryland ZIP codes |
| Income per person | $70,997 |
| Below the poverty line | 3.5% |
| Bachelor’s degree or higher | 53% of adults 25+ |
| Median home value | $591,100 · higher than 81% of Maryland ZIP codes |
| Median rent | $2,381 a month |
| Housing units | 1,773 |
| Households | 1,672 (2.69 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 29.38 sq mi (plus 0.46 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21710. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21710
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21717 | Buckeystown, MD | 3.1 mi NE | PO Box only |
| 21790 | Tuscarora, MD | 3.4 mi SW | Standard |
| 21777 | Point Of Rocks, MD | 4.2 mi W | Standard |
| 21703 | Frederick, MD | 5.1 mi N | Standard |
| 21704 | Frederick, MD | 5.4 mi NE | Standard |
| 20842 | Dickerson, MD | 5.7 mi S | Standard |
| 20838 | Barnesville, MD | 6.3 mi SE | Standard |
| 21755 | Jefferson, MD | 7 mi NW | Standard |
| 20839 | Beallsville, MD | 8.1 mi S | Standard |
| 20176 | Leesburg, VA | 8.7 mi SW | Standard |
| 21754 | Ijamsville, MD | 8.8 mi E | Standard |
| 21705 | Frederick, MD | 8.8 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21710 or measure the distance to another ZIP code.
How to address mail to 21710
123 MAIN ST
ADAMSTOWN MD 21710
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts DOUBS as the city name for 21710. Adding the 4-digit ZIP+4 code (21710-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21710?
- 21710 is a Adamstown, Maryland ZIP code. Doubs is also accepted as the city name.
- What county is 21710 in?
- ZIP code 21710 is in Frederick County, Maryland.
- What time zone is ZIP code 21710 in?
- 21710 is in the Eastern Time zone (America/New_York).
- What area code is 21710?
- Phone numbers in ZIP code 21710 use area codes 227, 240 and 301.
- What is the population of ZIP code 21710?
- About 4,661 people live in ZIP code 21710, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21710?
- The median household income in 21710 is $163,864 a year, higher than 88% of Maryland ZIP codes.
- What ZIP codes are near 21710?
- The nearest ZIP codes to 21710 are 21717 (Buckeystown, 3.1 miles), 21790 (Tuscarora, 3.4 miles), 21777 (Point Of Rocks, 4.2 miles) and 21703 (Frederick, 5.1 miles).