ZIP code 21157
Where is ZIP code 21157?
Westminster, Maryland
Carroll County · Standard ZIP code
ZIP code 21157 belongs to Westminster, Maryland in Carroll County. 21157 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 38,984 people live in the 21157 area, where the median household income is $104,966. The closest ZIP codes are 21158 (Westminster, 3.9 mi northwest), 21048 (Finksburg, 5.9 mi southeast) and 21074 (Hampstead, 7.1 mi northeast).
| ZIP code | 21157 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Westminster |
| State | Maryland (MD) |
| County | Carroll County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.5642, -76.9807 map |
| 3-digit prefix | 211 |
Population and income in 21157
| Population | 38,984 · higher than 90% of Maryland ZIP codes |
|---|---|
| People per square mile | 502 · higher than 54% of Maryland ZIP codes |
| Median age | 43.2 years · higher than 58% of Maryland ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $104,966 · higher than 50% of Maryland ZIP codes |
| Income per person | $49,793 |
| Below the poverty line | 6.7% |
| Bachelor’s degree or higher | 38% of adults 25+ |
| Median home value | $424,100 · higher than 50% of Maryland ZIP codes |
| Median rent | $1,331 a month |
| Housing units | 15,471 |
| Households | 14,785 (2.48 people on average) |
| Owners / renters | 77% / 23% |
| Land area | 77.69 sq mi (plus 0.15 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21157. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21157
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21158 | Westminster, MD | 3.9 mi NW | Standard |
| 21048 | Finksburg, MD | 5.9 mi SE | Standard |
| 21074 | Hampstead, MD | 7.1 mi NE | Standard |
| 21776 | New Windsor, MD | 7.3 mi SW | Standard |
| 21784 | Sykesville, MD | 7.5 mi S | Standard |
| 21791 | Union Bridge, MD | 8.1 mi W | Standard |
| 21102 | Manchester, MD | 8.9 mi NE | Standard |
| 21155 | Upperco, MD | 9.8 mi E | Standard |
| 21020 | Boring, MD | 9.8 mi E | PO Box only |
| 21071 | Glyndon, MD | 10.7 mi SE | PO Box only |
| 21136 | Reisterstown, MD | 11.5 mi SE | Standard |
| 21787 | Taneytown, MD | 12.2 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21157 or measure the distance to another ZIP code.
How to address mail to 21157
123 MAIN ST
WESTMINSTER MD 21157
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Carrollton: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (21157-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Westminster, MD
All Westminster ZIP codes with population and income →
Questions
- What city is ZIP code 21157?
- 21157 is a Westminster, Maryland ZIP code.
- What county is 21157 in?
- ZIP code 21157 is in Carroll County, Maryland.
- What time zone is ZIP code 21157 in?
- 21157 is in the Eastern Time zone (America/New_York).
- What area code is 21157?
- Phone numbers in ZIP code 21157 use area codes 410, 443 and 667.
- What is the population of ZIP code 21157?
- About 38,984 people live in ZIP code 21157, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21157?
- The median household income in 21157 is $104,966 a year, higher than 50% of Maryland ZIP codes.
- What ZIP codes are near 21157?
- The nearest ZIP codes to 21157 are 21158 (Westminster, 3.9 miles), 21048 (Finksburg, 5.9 miles), 21074 (Hampstead, 7.1 miles) and 21776 (New Windsor, 7.3 miles).