Riverside is a community in Harford County, Maryland, home to about 6,585 people across 2.6 square miles. Its ZIP code is 21017, and parts of 21001 are in Riverside too.
Homes sold for a median of $197 per square foot in the three months ending August 2026, a seller’s market.
Mostly Riverside
Mostly Aberdeen; part is in Riverside
Each card is that ZIP code’s whole market, including any part outside Riverside. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Riverside’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)31 miles away |
|---|---|
| Nearest city of 250,000+ | Baltimore, MD24 miles away |
| Nearest city of 1 million+ | Philadelphia, PA69 miles away |
Straight-line distances from the center of Riverside; 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.
Riverside had 7,021 residents in the 2020 census, up 15% since 2000.
It’s the 175th 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 (4 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).
55 doctors and other health care providers list an office in Riverside.
Nearest hospitals
Providers with an office here
| Primary care doctors | 8 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 5 |
| Nurse practitioners and physician assistants | 20 |
| Mental health providers | 14 |
| Physical and occupational therapists | 5 |
| Pharmacies | 4 |
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 (3 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries
Museums
Counts are within about 1.5 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 |
|---|---|---|---|---|
| Church Creek ElementaryBelcamp | Pre-K–5 | 732 | Public | 0.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| High Road School of Harford CountyBelcamp | 2–12 | 44 | Nonsectarian | 0.1 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 Aberdeen and Perryman.
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.