What city is ZIP code 21890?

21890 is a Westover, Maryland ZIP code.

What county is 21890 in?

ZIP code 21890 is in Somerset County, Maryland.

What time zone is ZIP code 21890 in?

21890 is in the Eastern Time zone (America/New_York).

What area code is 21890?

Phone numbers in ZIP code 21890 use area codes 410, 443 and 667.

What is the population of ZIP code 21890?

About 3,289 people live in ZIP code 21890, according to the Census Bureau’s American Community Survey (2020–2024).

Can I use 21890 for a street address?

Only for mail to the organization it is assigned to. Other addresses in Westover use a standard ZIP code.

What ZIP codes are near 21890?

The nearest ZIP codes to 21890 are 21867 (Upper Fairmount, 5.3 miles), 21821 (Deal Island, 5.4 miles), 21836 (Manokin, 7.4 miles) and 21817 (Crisfield, 7.9 miles).

ZIP code 21890

Where is ZIP code 21890?

Westover, Maryland

Somerset County · Unique ZIP code

ZIP code 21890 belongs to Westover, Maryland in Somerset County. 21890 is a unique ZIP code assigned to a single organization (Eastern Correctional Inst) that gets a lot of mail. It is in the Eastern Time zone and uses area codes 410, 443 and 667. About 3,289 people live in the 21890 area. The closest ZIP codes are 21867 (Upper Fairmount, 5.3 mi east), 21821 (Deal Island, 5.4 mi northwest) and 21836 (Manokin, 7.4 mi east).

ZIP code	21890
Type	Unique ZIP code for a single organization
Status	Active
City	Westover
State	Maryland (MD)
County	Somerset County
Time zone	Eastern Time · now
Area codes	410, 443, 667
Coordinates	38.0927, -75.8882 map
3-digit prefix	218

Population and income in 21890

Population	3,289 · lower than 56% of Maryland ZIP codes
People per square mile	9,370 · higher than 98% of Maryland ZIP codes
Median age	35.8 years · lower than 86% of Maryland ZIP codes
Men / women	99% / 0.9%
Income per person	$6,262
Bachelor’s degree or higher	2.3% of adults 25+
Housing units	0
Households	0
Land area	0.35 sq mi (plus 0.01 sq mi of water)

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21890. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.

ZIP codes near 21890

ZIP code	City	Distance	Type
21867	Upper Fairmount, MD	5.3 mi E	PO Box only
21821	Deal Island, MD	5.4 mi NW	Standard
21836	Manokin, MD	7.4 mi E	PO Box only
21817	Crisfield, MD	7.9 mi S	Standard
21871	Westover, MD	8 mi E	Standard
21838	Marion Station, MD	10 mi SE	Standard
21824	Ewell, MD	10.5 mi SW	Standard
21866	Tylerton, MD	11.4 mi SW	PO Box only
21853	Princess Anne, MD	12 mi NE	Standard
21840	Nanticoke, MD	12.1 mi N	Standard
21857	Rehobeth, MD	12.8 mi E	PO Box only
21865	Tyaskin, MD	13.4 mi N	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21890 or measure the distance to another ZIP code.

How to address mail to 21890

JANE SMITH
123 MAIN ST
WESTOVER MD 21890

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21890-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Westover, MD

21871

All Westover ZIP codes with population and income →

Questions

What city is ZIP code 21890?: 21890 is a Westover, Maryland ZIP code.
What county is 21890 in?: ZIP code 21890 is in Somerset County, Maryland.
What time zone is ZIP code 21890 in?: 21890 is in the Eastern Time zone (America/New_York).
What area code is 21890?: Phone numbers in ZIP code 21890 use area codes 410, 443 and 667.
What is the population of ZIP code 21890?: About 3,289 people live in ZIP code 21890, according to the Census Bureau’s American Community Survey (2020–2024).
Can I use 21890 for a street address?: Only for mail to the organization it is assigned to. Other addresses in Westover use a standard ZIP code.
What ZIP codes are near 21890?: The nearest ZIP codes to 21890 are 21867 (Upper Fairmount, 5.3 miles), 21821 (Deal Island, 5.4 miles), 21836 (Manokin, 7.4 miles) and 21817 (Crisfield, 7.9 miles).