Zip Code 21638 — Grasonville, MD

ZIP Code 21638 is associated with Grasonville, MD, in Queen Anne's County. The listed population estimate is 5,420; estimated density is 211.4 people per square mile. Among records with population estimates, it ranks #4 of 12 in Queen Anne's County and #232 of 470 in MD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.945130, -76.202630)

Data MetricLocal Statistic
Postal / Zip Code21638
Primary CityGrasonville
State / ProvinceMD
CountyQueen Anne's
Total Population5,420
Population Density211.4 people/sq mi
TimezoneAmerica/New_York

How 21638 Compares

MetricZIP 21638Queen Anne's County recordsMD records
Population estimate5,42048,876 (sum)6,205,597 (sum)
Population Density211.4 /sq mi----
County population rank#4 of 12----
State population rank#232 of 470----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MD

ZIP CodeCityDistancePopulation estimate
ZIP 21658Queenstown3.5 mi3,632
ZIP 21619Chester4.2 mi6,152
ZIP 21679Wye Mills6.4 mi306
ZIP 21666Stevensville7.0 mi14,394
ZIP 21624Claiborne8.5 mi162

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →