Catonsville is a community in Baltimore County, Maryland, home to about 43,368 people across 14 square miles. Its ZIP codes are 21228 and 21250, and parts of 21043, 21227 and 21229 are in Catonsville too.
Homes sold for a median of $239 per square foot in the three months ending August 2026, a seller’s market.
Mostly Catonsville; also Woodlawn (Baltimore County)
All in Catonsville
Mostly Ellicott City; part is in Catonsville
Mostly Arbutus; part is in Catonsville
Mostly Baltimore; part is in Catonsville
Each card is that ZIP code’s whole market, including any part outside Catonsville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Catonsville’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Catonsville well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Baltimore/Washington International Thurgood Marshall Airport (BWI)8 miles away |
|---|---|
| Nearest city of 250,000+ | Baltimore, MD7 miles away |
| Nearest city of 1 million+ | Philadelphia, PA99 miles away |
Straight-line distances from the center of Catonsville; 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.
Catonsville had 44,701 residents in the 2020 census, up 12% since 2000.
It’s the 23rd largest of 527 towns in Maryland by population.
Baltimore County grew from 90,755 residents in 1900 to 854,535 in 2020.
Baltimore County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 30°F. About 44 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Md Sci Ctr Baltimore, MD weather station (7 miles away).
340,854 jobs at 20,340 businesses in Baltimore County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
899 doctors and other health care providers list an office in Catonsville’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 94 |
|---|---|
| Specialist doctors | 104 |
| Dentists | 65 |
| Nurse practitioners and physician assistants | 141 |
| Mental health providers | 331 |
| Physical and occupational therapists | 147 |
| Optometrists | 8 |
| Chiropractors | 9 |
| Pharmacies | 28 |
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 (30 nearby)
Grocery stores (14 nearby)
Pharmacies (10 nearby)
Libraries (2 nearby)
Museums
Theaters and performance venues (3 nearby)
Counts are within about 2.5 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.
Established in 1831.
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 Baltimore County Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Catonsville ElementaryCatonsville | Pre-K–5 | 653 | Public | 0.5 mi |
| Hillcrest ElementaryBaltimore | Pre-K–5 | 678 | Public | 0.6 mi |
| Johnnycake ElementaryBaltimore | Pre-K–5 | 592 | Public | 1.2 mi |
| Westchester ElementaryBaltimore | Pre-K–5 | 662 | Public | 1.7 mi |
| Westowne ElementaryCatonsville | Pre-K–5 | 635 | Public | 1.1 mi |
| Woodbridge ElementaryBaltimore | Pre-K–5 | 484 | Public | 1.8 mi |
| Catonsville MiddleCatonsville | 6–8 | 818 | Public | 1.8 mi |
| Catonsville Center for Alternative StudiesBaltimore | 9–12 | 68 | Alternative Education | 1.7 mi |
| Catonsville HighBaltimore | 9–12 | 1,735 | Public | 1.1 mi |
| Western School of TechnologyBaltimore | 9–12 | 942 | Career and Technical | 1.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Mark SchoolCatonsville | Pre-K–8 | 463 | Roman Catholic | 0.1 mi |
| St Paul Lutheran SchoolBaltimore | Pre-K–5 | 70 | Lutheran Church–Missouri Synod | 1.2 mi |
| Mount De Sales AcademyBaltimore | 9–12 | 450 | Roman Catholic | 1.2 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.
Buying or selling around Catonsville? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Baltimore, Ellicott City, Arbutus, Woodlawn (Baltimore County), Ilchester, Baltimore Highlands and Lansdowne.
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.