ZIP code 21755
Where is ZIP code 21755?
Jefferson, Maryland
Frederick County · Standard ZIP code
ZIP code 21755 belongs to Jefferson, Maryland in Frederick County. 21755 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, 540, 571, 703 and 826. About 5,909 people live in the 21755 area, where the median household income is $137,417. The closest ZIP codes are 21703 (Frederick, 4.3 mi east), 21714 (Braddock Heights, 4.3 mi northeast) and 21718 (Burkittsville, 4.8 mi northwest).
| ZIP code | 21755 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Jefferson |
| State | Maryland (MD) |
| County | Frederick County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301, 540, 571, 703, 826 |
| Coordinates | 39.3653, -77.5441 map |
| 3-digit prefix | 217 |
Population and income in 21755
| Population | 5,909 · higher than 52% of Maryland ZIP codes |
|---|---|
| People per square mile | 172 · lower than 67% of Maryland ZIP codes |
| Median age | 43.2 years · higher than 58% of Maryland ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $137,417 · higher than 73% of Maryland ZIP codes |
| Income per person | $62,001 |
| Below the poverty line | 9.0% |
| Bachelor’s degree or higher | 47% of adults 25+ |
| Median home value | $529,600 · higher than 73% of Maryland ZIP codes |
| Median rent | $1,265 a month |
| Housing units | 2,231 |
| Households | 2,136 (2.76 people on average) |
| Owners / renters | 87% / 13% |
| Land area | 34.32 sq mi (plus 0.62 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21755. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21755
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21703 | Frederick, MD | 4.3 mi E | Standard |
| 21714 | Braddock Heights, MD | 4.3 mi NE | PO Box only |
| 21718 | Burkittsville, MD | 4.8 mi NW | Standard |
| 21769 | Middletown, MD | 5.3 mi N | Standard |
| 21716 | Brunswick, MD | 5.4 mi SW | Standard |
| 21758 | Knoxville, MD | 5.9 mi W | Standard |
| 21777 | Point Of Rocks, MD | 6 mi S | Standard |
| 21715 | Brownsville, MD | 6.3 mi W | PO Box only |
| 21717 | Buckeystown, MD | 6.7 mi E | PO Box only |
| 21710 | Adamstown, MD | 7 mi SE | Standard |
| 21790 | Tuscarora, MD | 7.1 mi S | Standard |
| 21705 | Frederick, MD | 7.9 mi NE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21755 or measure the distance to another ZIP code.
How to address mail to 21755
123 MAIN ST
JEFFERSON MD 21755
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21755-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21755?
- 21755 is a Jefferson, Maryland ZIP code.
- What county is 21755 in?
- ZIP code 21755 is in Frederick County, Maryland.
- What time zone is ZIP code 21755 in?
- 21755 is in the Eastern Time zone (America/New_York).
- What area code is 21755?
- Phone numbers in ZIP code 21755 use area codes 227, 240, 301, 540, 571, 703 and 826.
- What is the population of ZIP code 21755?
- About 5,909 people live in ZIP code 21755, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21755?
- The median household income in 21755 is $137,417 a year, higher than 73% of Maryland ZIP codes.
- What ZIP codes are near 21755?
- The nearest ZIP codes to 21755 are 21703 (Frederick, 4.3 miles), 21714 (Braddock Heights, 4.3 miles), 21718 (Burkittsville, 4.8 miles) and 21769 (Middletown, 5.3 miles).