Zip Code 21036 — Dayton, MD

ZIP Code 21036 is associated with Dayton, MD, in Howard County. The listed population estimate is 2,569; estimated density is 158.6 people per square mile. Among records with population estimates, it ranks #16 of 20 in Howard County and #291 of 470 in MD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.234160, -77.002230)

Data MetricLocal Statistic
Postal / Zip Code21036
Primary CityDayton
State / ProvinceMD
CountyHoward
Total Population2,569
Population Density158.6 people/sq mi
TimezoneAmerica/New_York

How 21036 Compares

MetricZIP 21036Howard County recordsMD records
Population estimate2,569335,512 (sum)6,205,597 (sum)
Population Density158.6 /sq mi----
County population rank#16 of 20----
State population rank#291 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 21737Glenelg1.7 mi2,474
ZIP 21029Clarksville3.3 mi13,607
ZIP 21738Glenwood3.4 mi3,696
ZIP 20833Brookeville3.5 mi7,860
ZIP 20862Brinklow3.8 mi430

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 →