Postal reference / United States

21075Elkridge, Maryland

ZIP code 21075 is a United States postal code for Elkridge, Maryland. Its county association is Howard County. The map reference point is at 39.2058, -76.7531.

State / territory
Maryland
Recorded place name
Elkridge
County association
Howard
Estimated coordinate
39.2058, -76.7531
View on OpenStreetMap
ZIP prefix
210 · 58 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
13.931 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore Maryland

Browse the other 604 ZIP codes recorded for Maryland, sorted by code with place and county.

Maryland directory

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
21227HalethorpeMDBaltimore3.5
21076HanoverMDAnne Arundel3.9
21250BaltimoreMDBaltimore4.2
21043Ellicott CityMDHoward4.2
21045ColumbiaMDHoward4.2
20794JessupMDHoward4.5
21077HarmansMDAnne Arundel4.5
21090Linthicum HeightsMDAnne Arundel4.6

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup