Home > MD > Howard County > Glenelg > Zip 21737

Zip Code 21737 — Glenelg, MD

21737 is a ZIP Code associated with Glenelg, MD, located within Howard. The postal region supports an estimated population of 2,474 residents across Data Pending housing units, with a population density of 186.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.254300, -77.019590)

Data MetricLocal Statistic
Postal / Zip Code21737
Primary CityGlenelg
State / ProvinceMD
CountyHoward
Total Population2,474
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density186.5 people/sq mi
TimezoneAmerica/New_York

How 21737 Compares

MetricZIP 21737Howard CountyMD State Average
Population2,474335,5126,205,597
Median IncomeData PendingN/AN/A
Population Density186.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 21036Dayton1.7 mi2,569N/A
Zip 21738Glenwood1.8 mi3,696N/A
Zip 21794West Friendship3.8 mi2,192N/A
Zip 20833Brookeville3.9 mi7,860N/A
Zip 21029Clarksville4.9 mi13,607N/A

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 →