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Zip Code 21034 — Darlington, MD

21034 is a ZIP Code associated with Darlington, MD, located within Harford. The postal region supports an estimated population of 2,846 residents across Data Pending housing units, with a population density of 41.2 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.649050, -76.222610)

Data Metric	Local Statistic
Postal / Zip Code	21034
Primary City	Darlington
State / Province	MD
County	Harford
Total Population	2,846
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	41.2 people/sq mi
Timezone	America/New_York

How 21034 Compares

Metric	ZIP 21034	Harford County	MD State Average
Population	2,846	262,768	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	41.2 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21918	Conowingo	3.8 mi	4,169	N/A
Zip 21028	Churchville	5.7 mi	3,103	N/A
Zip 21160	Whiteford	6.0 mi	2,441	N/A
Zip 21917	Colora	6.8 mi	2,233	N/A
Zip 21078	Havre De Grace	6.8 mi	20,030	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 →