Linthicum is a community in Anne Arundel County, Maryland, home to about 11,313 people across 5.5 square miles. Its ZIP code is 21090.
Homes sold for a median of $233 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 Linthicum. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Linthicum’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)2 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 Linthicum; 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.
Linthicum had 11,190 residents in the 2020 census, up 48% since 2000.
It’s the 126th largest of 527 towns in Maryland by population.
Anne Arundel County grew from 39,620 residents in 1900 to 588,261 in 2020.
Anne Arundel County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 89°F in summer, and winter lows average 25°F. About 45 inches of rain and melted snow fall in a typical year, with about 19 inches of snow.
Source: NOAA 1991–2020 climate normals, Baltimore Wash Intl Ap, MD weather station (3 miles away).
245,664 jobs at 14,718 businesses in Anne Arundel County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
110 doctors and other health care providers list an office in Linthicum.
Nearest hospitals
Providers with an office here
| Primary care doctors | 18 |
|---|---|
| Specialist doctors | 6 |
| Dentists | 6 |
| Nurse practitioners and physician assistants | 29 |
| Mental health providers | 44 |
| Physical and occupational therapists | 4 |
| Optometrists | 2 |
| Chiropractors | 1 |
| Pharmacies | 2 |
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 (5 nearby)
Grocery stores (2 nearby)
Pharmacies
Libraries (1 nearby)
Museums
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 1908.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Anne Arundel County Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Linthicum ElementaryLinthicum | Pre-K–5 | 509 | Public | 1.0 mi |
| Overlook ElementaryLinthicum | Pre-K–5 | 249 | Public | 0.9 mi |
| Lindale MiddleLinthicum | 6–8 | 884 | Public | 1.0 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Friendship Adventist SchoolLinthicum | Pre-K–6 | 24 | Seventh-day Adventist | 0.9 mi |
| St Philip Neri SchoolLinthicum Heights | Pre-K–8 | 444 | Roman Catholic | 1.3 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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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.