ZIP code 21655
Where is ZIP code 21655?
Preston, Maryland
Caroline County · Standard ZIP code
ZIP code 21655 belongs to Preston, Maryland in Caroline County. 21655 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 410, 443 and 667. About 5,053 people live in the 21655 area, where the median household income is $90,385. The closest ZIP codes are 21609 (Bethlehem, 2.3 mi west), 21643 (Hurlock, 7.7 mi south) and 21632 (Federalsburg, 7.9 mi east).
| ZIP code | 21655 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Preston |
| State | Maryland (MD) |
| County | Caroline County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 38.7465, -75.9163 map |
| 3-digit prefix | 216 |
Population and income in 21655
| Population | 5,053 · lower than 51% of Maryland ZIP codes |
|---|---|
| People per square mile | 96 · lower than 78% of Maryland ZIP codes |
| Median age | 42.2 years · higher than 52% of Maryland ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $90,385 · lower than 61% of Maryland ZIP codes |
| Income per person | $42,506 |
| Below the poverty line | 4.3% |
| Bachelor’s degree or higher | 24% of adults 25+ |
| Median home value | $289,200 · lower than 78% of Maryland ZIP codes |
| Median rent | $1,380 a month |
| Housing units | 1,989 |
| Households | 1,862 (2.71 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 52.72 sq mi (plus 3.34 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21655. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21655
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21609 | Bethlehem, MD | 2.3 mi W | PO Box only |
| 21643 | Hurlock, MD | 7.7 mi S | Standard |
| 21632 | Federalsburg, MD | 7.9 mi E | Standard |
| 21601 | Easton, MD | 8.8 mi W | Standard |
| 21629 | Denton, MD | 8.9 mi NE | Standard |
| 21673 | Trappe, MD | 9.2 mi SW | Standard |
| 21664 | Secretary, MD | 9.6 mi S | PO Box only |
| 21625 | Cordova, MD | 9.7 mi NW | Standard |
| 21631 | East New Market, MD | 10.9 mi S | Standard |
| 21641 | Hillsboro, MD | 12.1 mi N | PO Box only |
| 21659 | Rhodesdale, MD | 12.5 mi SE | Standard |
| 21654 | Oxford, MD | 13.5 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21655 or measure the distance to another ZIP code.
How to address mail to 21655
123 MAIN ST
PRESTON MD 21655
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21655-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21655?
- 21655 is a Preston, Maryland ZIP code.
- What county is 21655 in?
- ZIP code 21655 is in Caroline County, Maryland.
- What time zone is ZIP code 21655 in?
- 21655 is in the Eastern Time zone (America/New_York).
- What area code is 21655?
- Phone numbers in ZIP code 21655 use area codes 410, 443 and 667.
- What is the population of ZIP code 21655?
- About 5,053 people live in ZIP code 21655, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21655?
- The median household income in 21655 is $90,385 a year, lower than 61% of Maryland ZIP codes.
- What ZIP codes are near 21655?
- The nearest ZIP codes to 21655 are 21609 (Bethlehem, 2.3 miles), 21643 (Hurlock, 7.7 miles), 21632 (Federalsburg, 7.9 miles) and 21601 (Easton, 8.8 miles).