ZIP code 21701
Where is ZIP code 21701?
Frederick, Maryland
Frederick County · Standard ZIP code
ZIP code 21701 belongs to Frederick, Maryland in Frederick County. 21701 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 43,048 people live in the 21701 area, where the median household income is $106,577. The closest ZIP codes are 21793 (Walkersville, 2.4 mi north), 21709 (Frederick, 3.5 mi northwest) and 21774 (New Market, 4 mi southeast).
| ZIP code | 21701 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Frederick |
| Also accepted | Lewistown |
| State | Maryland (MD) |
| County | Frederick County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301 |
| Coordinates | 39.4461, -77.335 map |
| 3-digit prefix | 217 |
Population and income in 21701
| Population | 43,048 · higher than 93% of Maryland ZIP codes |
|---|---|
| People per square mile | 1,084 · higher than 66% of Maryland ZIP codes |
| Median age | 39.6 years · lower than 64% of Maryland ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $106,577 · higher than 51% of Maryland ZIP codes |
| Income per person | $60,194 |
| Below the poverty line | 7.1% |
| Bachelor’s degree or higher | 50% of adults 25+ |
| Median home value | $435,000 · higher than 54% of Maryland ZIP codes |
| Median rent | $1,672 a month |
| Housing units | 19,513 |
| Households | 18,651 (2.24 people on average) |
| Owners / renters | 66% / 34% |
| Land area | 39.7 sq mi (plus 0.59 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21701. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21701
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21793 | Walkersville, MD | 2.4 mi N | Standard |
| 21709 | Frederick, MD | 3.5 mi NW | Unique |
| 21774 | New Market, MD | 4 mi SE | Standard |
| 21705 | Frederick, MD | 4.6 mi SW | PO Box only |
| 21762 | Libertytown, MD | 5.3 mi NE | PO Box only |
| 21798 | Woodsboro, MD | 6.2 mi N | Standard |
| 21704 | Frederick, MD | 7.4 mi S | Standard |
| 21702 | Frederick, MD | 7.5 mi NW | Standard |
| 21770 | Monrovia, MD | 8 mi SE | Standard |
| 21792 | Unionville, MD | 8.2 mi E | PO Box only |
| 21775 | New Midway, MD | 8.5 mi N | PO Box only |
| 21754 | Ijamsville, MD | 8.5 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21701 or measure the distance to another ZIP code.
How to address mail to 21701
123 MAIN ST
FREDERICK MD 21701
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts LEWISTOWN as the city name for 21701. Avoid Hood College: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (21701-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Frederick, MD
All Frederick ZIP codes with population and income →
Questions
- What city is ZIP code 21701?
- 21701 is a Frederick, Maryland ZIP code. Lewistown is also accepted as the city name.
- What county is 21701 in?
- ZIP code 21701 is in Frederick County, Maryland.
- What time zone is ZIP code 21701 in?
- 21701 is in the Eastern Time zone (America/New_York).
- What area code is 21701?
- Phone numbers in ZIP code 21701 use area codes 227, 240 and 301.
- What is the population of ZIP code 21701?
- About 43,048 people live in ZIP code 21701, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21701?
- The median household income in 21701 is $106,577 a year, higher than 51% of Maryland ZIP codes.
- What ZIP codes are near 21701?
- The nearest ZIP codes to 21701 are 21793 (Walkersville, 2.4 miles), 21709 (Frederick, 3.5 miles), 21774 (New Market, 4 miles) and 21705 (Frederick, 4.6 miles).