U.S. ZIP Code tools

21821 · ZIP Code · Deal Island MD

ZIP Code
21821

Deal Island, MD

City / locality
Deal Island
State
Maryland
ZIP Code type
Type not provided
Latitude
38.1533
Longitude
-75.9496
Coordinate source
GeoNames Postal
Source
GeoNames Postal
Source year
Inherited source snapshot

Some U.S. place names and coordinates come from GeoNames as geographic references. They are not confirmation of the USPS preferred mailing city.

ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.

ZIP Code map

ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.

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Population & demographics

acs/acs5 · 2024

Population & demographics

ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.

Estimated population

797People · Margin of error ±201

Median age

46.0Years · Margin of error ±24.0

Median household income

60,341USD · Margin of error ±34,870

Total households

375Households · Margin of error ±86

County

Verified ZIP-to-county crosswalk data is not currently available.

Nearby postal codes

ZIP CodeCity / localityStateDistance calculator
21890WestoverMD5.35 Miles / 8.62 km
21840NanticokeMD8.28 Miles / 13.33 km
21627CrocheronMD8.35 Miles / 13.43 km
21867Upper FairmountMD9.25 Miles / 14.89 km
21672ToddvilleMD10.18 Miles / 16.38 km
21814BivalveMD10.31 Miles / 16.59 km
21865TyaskinMD10.58 Miles / 17.03 km
21836ManokinMD10.85 Miles / 17.47 km
21871WestoverMD11.92 Miles / 19.18 km
21824EwellMD11.96 Miles / 19.25 km

Source

GeoNames Postal

Source year: Source vintage not supplied

GeoNames Postal

U.S. Census Bureau Gazetteer

Source year: 2026 Gazetteer

U.S. Census Bureau Gazetteer

U.S. Census Bureau ZCTA cartographic boundaries

Source year: 2020 Census ZCTA cartographic

U.S. Census Bureau ZCTA cartographic boundaries

U.S. Census Bureau ACS 5-year

Source year: 2024 ACS 5-year

U.S. Census Bureau ACS 5-year