ZIP code 21071
Where is ZIP code 21071?
Glyndon, Maryland
Baltimore County · PO Box only ZIP code
ZIP code 21071 belongs to Glyndon, Maryland in Baltimore County. 21071 is a PO Box only ZIP code: it is used for post office boxes at the Glyndon post office, not for street addresses. It is in the Eastern Time zone and uses area codes 410, 443 and 667. About 404 people live in the 21071 area, where the median household income is $213,500. The closest ZIP codes are 21136 (Reisterstown, 1.2 mi south), 21020 (Boring, 3.1 mi north) and 21117 (Owings Mills, 4 mi southeast).
| ZIP code | 21071 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Glyndon |
| State | Maryland (MD) |
| County | Baltimore County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.477, -76.815 map |
| 3-digit prefix | 210 |
Population and income in 21071
| Population | 404 · lower than 86% of Maryland ZIP codes |
|---|---|
| People per square mile | 269 · lower than 58% of Maryland ZIP codes |
| Median age | 33 years · lower than 93% of Maryland ZIP codes |
| Men / women | 43% / 57% |
| Median household income | $213,500 · higher than 95% of Maryland ZIP codes |
| Income per person | $64,007 |
| Below the poverty line | 4.2% |
| Bachelor’s degree or higher | 83% of adults 25+ |
| Median home value | $450,500 · higher than 57% of Maryland ZIP codes |
| Housing units | 130 |
| Households | 130 (3.11 people on average) |
| Owners / renters | 100% / 0.0% |
| Land area | 1.5 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21071. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21071
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21136 | Reisterstown, MD | 1.2 mi S | Standard |
| 21020 | Boring, MD | 3.1 mi N | PO Box only |
| 21117 | Owings Mills, MD | 4 mi SE | Standard |
| 21048 | Finksburg, MD | 5.3 mi W | Standard |
| 21023 | Butler, MD | 5.4 mi NE | PO Box only |
| 21155 | Upperco, MD | 6.3 mi N | Standard |
| 21133 | Randallstown, MD | 7.1 mi S | Standard |
| 21153 | Stevenson, MD | 7.1 mi SE | PO Box only |
| 21030 | Cockeysville, MD | 7.9 mi E | Standard |
| 21208 | Pikesville, MD | 8.3 mi SE | Standard |
| 21784 | Sykesville, MD | 8.4 mi W | Standard |
| 21152 | Sparks Glencoe, MD | 8.5 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21071 or measure the distance to another ZIP code.
How to address mail to 21071
PO BOX 123
GLYNDON MD 21071
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21071-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21071?
- 21071 is a Glyndon, Maryland ZIP code.
- What county is 21071 in?
- ZIP code 21071 is in Baltimore County, Maryland.
- What time zone is ZIP code 21071 in?
- 21071 is in the Eastern Time zone (America/New_York).
- What area code is 21071?
- Phone numbers in ZIP code 21071 use area codes 410, 443 and 667.
- What is the population of ZIP code 21071?
- About 404 people live in ZIP code 21071, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21071?
- The median household income in 21071 is $213,500 a year, higher than 95% of Maryland ZIP codes.
- Can I use 21071 for a street address?
- No. 21071 is only for PO Boxes. Street addresses in Glyndon use another ZIP code.
- What ZIP codes are near 21071?
- The nearest ZIP codes to 21071 are 21136 (Reisterstown, 1.2 miles), 21020 (Boring, 3.1 miles), 21117 (Owings Mills, 4 miles) and 21048 (Finksburg, 5.3 miles).