Aberdeen is a city in Harford County, Maryland, home to about 17,298 people across 6.6 square miles. Its ZIP code is 21001, and parts of 21078 are in Aberdeen too.
Homes sold for a median of $188 per square foot in the three months ending August 2026, a seller’s market.
Mostly Aberdeen; also Perryman and Riverside
Mostly Havre de Grace; part is in Aberdeen
Each card is that ZIP code’s whole market, including any part outside Aberdeen. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Aberdeen’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)35 miles away |
|---|---|
| Nearest city of 250,000+ | Baltimore, MD27 miles away |
| Nearest city of 1 million+ | Philadelphia, PA65 miles away |
Straight-line distances from the center of Aberdeen; 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.
Aberdeen had 16,254 residents in the 2020 census, up 17% since 2000.
It’s the 85th 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 86°F in summer, and winter lows average 25°F. About 47.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Aberdeen Phillips Fld, MD weather station (3 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).
246 doctors and other health care providers list an office in Aberdeen.
Nearest hospitals
Providers with an office here
| Primary care doctors | 12 |
|---|---|
| Specialist doctors | 8 |
| Dentists | 12 |
| Nurse practitioners and physician assistants | 49 |
| Mental health providers | 115 |
| Physical and occupational therapists | 42 |
| Optometrists | 2 |
| Chiropractors | 6 |
| Pharmacies | 9 |
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 (8 nearby)
Grocery stores (4 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues
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.
Established in 1892.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
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 |
|---|---|---|---|---|
| Bakerfield ElementaryAberdeen | Pre-K–5 | 460 | Public | 0.4 mi |
| G. Lisby Elementary at HillsdaleAberdeen | Pre-K–5 | 528 | Public | 0.6 mi |
| Halls Cross Roads ElementaryAberdeen | Pre-K–5 | 425 | Public | 1.3 mi |
| Swan Creek SchoolAberdeen | 2–12 | 368 | Public | 0.6 mi |
| Aberdeen MiddleAberdeen | 6–8 | 1,071 | Public | 0.7 mi |
| Center for Educational OpportunityAberdeen | 6–12 | 122 | Alternative Education | 0.6 mi |
| Aberdeen HighAberdeen | 9–12 | 1,396 | Public | 0.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Joan of ArcAberdeen | Pre-K–8 | 184 | Roman Catholic | 0.5 mi |
| St Joan of Arc SchoolAberdeen | Pre-K–8 | 184 | Roman Catholic | 0.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Havre de Grace, Perryman and Riverside.
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.