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Zip Code 21043 — Ellicott City, MD

21043 is a ZIP Code associated with Ellicott City, MD, located within Howard. The postal region supports an estimated population of 48,525 residents across Data Pending housing units, with a population density of 1,095.9 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.257590, -76.797730)

Data Metric	Local Statistic
Postal / Zip Code	21043
Primary City	Ellicott City
State / Province	MD
County	Howard
Total Population	48,525
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	1,095.9 people/sq mi
Timezone	America/New_York

How 21043 Compares

Metric	ZIP 21043	Howard County	MD State Average
Population	48,525	335,512	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	1,095.9 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21228	Catonsville	2.9 mi	50,492	N/A
Zip 21045	Columbia	3.9 mi	40,034	N/A
Zip 21075	Elkridge	4.4 mi	37,363	N/A
Zip 21250	Baltimore	4.6 mi	2,834	N/A
Zip 21042	Ellicott City	5.1 mi	43,327	N/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 →