ZIP code 21921
Where is ZIP code 21921?
Elkton, Maryland
Cecil County · Standard ZIP code
ZIP code 21921 belongs to Elkton, Maryland in Cecil County. 21921 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 302, 410, 443, 484, 610, 667 and 835. About 45,527 people live in the 21921 area, where the median household income is $85,775. The closest ZIP codes are 21922 (Elkton, 1.5 mi southeast), 21916 (Childs, 1.9 mi northwest) and 21920 (Elk Mills, 2.4 mi northeast).
| ZIP code | 21921 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Elkton |
| State | Maryland (MD) |
| County | Cecil County |
| Time zone | Eastern Time · now |
| Area codes | 302, 410, 443, 484, 610, 667, 835 |
| Coordinates | 39.6264, -75.8458 map |
| 3-digit prefix | 219 |
Population and income in 21921
| Population | 45,527 · higher than 94% of Maryland ZIP codes |
|---|---|
| People per square mile | 481 · higher than 54% of Maryland ZIP codes |
| Median age | 39.4 years · lower than 65% of Maryland ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $85,775 · lower than 69% of Maryland ZIP codes |
| Income per person | $40,249 |
| Below the poverty line | 14% |
| Bachelor’s degree or higher | 29% of adults 25+ |
| Median home value | $330,400 · lower than 71% of Maryland ZIP codes |
| Median rent | $1,421 a month |
| Housing units | 18,475 |
| Households | 17,316 (2.57 people on average) |
| Owners / renters | 70% / 30% |
| Land area | 94.73 sq mi (plus 5.49 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21921. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21921
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21922 | Elkton, MD | 1.5 mi SE | PO Box only |
| 21916 | Childs, MD | 1.9 mi NW | PO Box only |
| 21920 | Elk Mills, MD | 2.4 mi NE | PO Box only |
| 21901 | North East, MD | 5.9 mi W | Standard |
| 19716 | Newark, DE | 6.4 mi NE | Standard |
| 19717 | Newark, DE | 6.5 mi NE | Standard |
| 19351 | Lewisville, PA | 6.8 mi N | PO Box only |
| 19713 | Newark, DE | 7.6 mi NE | Standard |
| 19360 | New London, PA | 7.6 mi NE | PO Box only |
| 19711 | Newark, DE | 7.7 mi NE | Standard |
| 19702 | Newark, DE | 7.8 mi E | Standard |
| 21915 | Chesapeake City, MD | 7.8 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21921 or measure the distance to another ZIP code.
How to address mail to 21921
123 MAIN ST
ELKTON MD 21921
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21921-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Elkton, MD
All Elkton ZIP codes with population and income →
Questions
- What city is ZIP code 21921?
- 21921 is a Elkton, Maryland ZIP code.
- What county is 21921 in?
- ZIP code 21921 is in Cecil County, Maryland.
- What time zone is ZIP code 21921 in?
- 21921 is in the Eastern Time zone (America/New_York).
- What area code is 21921?
- Phone numbers in ZIP code 21921 use area codes 302, 410, 443, 484, 610, 667 and 835.
- What is the population of ZIP code 21921?
- About 45,527 people live in ZIP code 21921, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21921?
- The median household income in 21921 is $85,775 a year, lower than 69% of Maryland ZIP codes.
- What ZIP codes are near 21921?
- The nearest ZIP codes to 21921 are 21922 (Elkton, 1.5 miles), 21916 (Childs, 1.9 miles), 21920 (Elk Mills, 2.4 miles) and 21901 (North East, 5.9 miles).