Charlestown is a town in Cecil County, Maryland, home to about 1,999 people across 1.2 square miles. Its ZIP code is 21914, and parts of 21901 are in Charlestown too.
Homes sold for a median of $158 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Charlestown
Part is in Charlestown, part in North East
Each card is that ZIP code’s whole market, including any part outside Charlestown. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Charlestown’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Philadelphia International Airport (PHL)43 miles away |
|---|---|
| Closer regional airport | Wilmington Airport (ILG)20 miles away |
| Nearest city of 250,000+ | Baltimore, MD40 miles away |
| Nearest city of 1 million+ | Philadelphia, PA53 miles away |
Straight-line distances from the center of Charlestown; 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.
Charlestown had 1,496 residents in the 2020 census, up 47% since 2000.
It’s the 285th largest of 527 towns in Maryland by population.
Cecil County grew from 24,662 residents in 1900 to 103,725 in 2020.
Cecil County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 25°F. About 48.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Conowingo Dam, MD weather station (12 miles away).
29,700 jobs at 1,776 businesses in Cecil County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Charlestown.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|
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 (1 nearby)
Grocery stores
Pharmacies
Libraries
Museums (1 nearby)
Counts are within about 1 mile 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 Cecil County Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Charlestown ElementaryCharlestown | Pre-K–5 | 305 | Public | 1.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with North East.
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.