Cockeysville is a community in Baltimore County, Maryland, home to about 23,962 people across 12 square miles. Its ZIP codes are 21030 and 21031, and parts of 21131 are in Cockeysville too.
Homes sold for a median of $233 per square foot in the three months ending August 2026, a seller’s market.
Mostly Cockeysville
All in Cockeysville
Each card is that ZIP code’s whole market, including any part outside Cockeysville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Cockeysville’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)22 miles away |
|---|---|
| Nearest city of 250,000+ | Baltimore, MD13 miles away |
| Nearest city of 1 million+ | Philadelphia, PA89 miles away |
Straight-line distances from the center of Cockeysville; 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.
Cockeysville had 24,184 residents in the 2020 census, up 25% since 2000.
It’s the 61st 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 (15 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).
398 doctors and other health care providers list an office in Cockeysville’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 30 |
|---|---|
| Specialist doctors | 35 |
| Dentists | 39 |
| Nurse practitioners and physician assistants | 57 |
| Mental health providers | 150 |
| Physical and occupational therapists | 78 |
| Optometrists | 5 |
| Chiropractors | 4 |
| Pharmacies | 15 |
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 (6 nearby)
Pharmacies (2 nearby)
Libraries
Museums (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.
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 |
|---|---|---|---|---|
| Padonia International ElementaryCockeysville | Pre-K–5 | 505 | Public | 2.6 mi |
| Warren ElementaryCockeysville | Pre-K–5 | 381 | Public | 3.1 mi |
| Cockeysville MiddleCockeysville | 6–8 | 928 | Public | 2.1 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Apple Tree Children's CenterCockeysville | Pre-K–K | 10 | Nonsectarian | 2.6 mi |
| St Joseph School CockeysvilleCockeysville | Pre-K–8 | 347 | Roman Catholic | 2.2 mi |
| Sheppard Pratt SchoolHunt Valley | 2–12 | 61 | Nonsectarian | 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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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.