Jarrettsville is a community in Harford County, Maryland, home to about 2,560 people across 8.6 square miles. Its ZIP code is 21084.
Homes sold for a median of $234 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Jarrettsville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Jarrettsville’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Baltimore/Washington International Thurgood Marshall Airport (BWI)32 miles away |
|---|---|
| Nearest city of 250,000+ | Baltimore, MD23 miles away |
| Nearest city of 1 million+ | Philadelphia, PA76 miles away |
Straight-line distances from the center of Jarrettsville; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Jarrettsville had 2,888 residents in the 2020 census, up 5% since 2000.
It’s the 263rd largest of 527 towns in Maryland by population.
Harford County grew from 28,269 residents in 1900 to 260,924 in 2020.
Harford County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 25°F. About 48.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Conowingo Dam, MD weather station (16 miles away).
79,488 jobs at 5,636 businesses in Harford County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
33 doctors and other health care providers list an office in Jarrettsville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 5 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 2 |
| Nurse practitioners and physician assistants | 7 |
| Mental health providers | 7 |
| Physical and occupational therapists | 7 |
| Optometrists | 2 |
| Chiropractors | 1 |
| Pharmacies | 3 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (2 nearby)
Grocery stores
Pharmacies (1 nearby)
Libraries (1 nearby)
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Harford County Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| North Bend ElementaryJarrettsville | Pre-K–5 | 467 | Public | 1.2 mi |
| Jarrettsville ElementaryJarrettsville | K–5 | 467 | Public | 1.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.