Home > MD > Harford County > Jarrettsville > Zip 21084

Zip Code 21084 — Jarrettsville, MD

21084 is a ZIP Code associated with Jarrettsville, MD, located within Harford. The postal region supports an estimated population of 7,070 residents across Data Pending housing units, with a population density of 114.9 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.616590, -76.463170)

Data Metric	Local Statistic
Postal / Zip Code	21084
Primary City	Jarrettsville
State / Province	MD
County	Harford
Total Population	7,070
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	114.9 people/sq mi
Timezone	America/New_York

How 21084 Compares

Metric	ZIP 21084	Harford County	MD State Average
Population	7,070	262,768	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	114.9 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21050	Forest Hill	4.3 mi	17,466	N/A
Zip 21132	Pylesville	5.8 mi	3,160	N/A
Zip 21154	Street	6.0 mi	6,544	N/A
Zip 21161	White Hall	6.2 mi	5,221	N/A
Zip 21047	Fallston	6.3 mi	13,852	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 →