ZIP Code 21742, Maryland
ZIP Code 21742 profile, demographic data, and geographic information.
ZCTA5 21742 is a 5-digit ZIP Code area located in Washington County, Maryland. As of official census estimates, it has a reported population of 34,069. The land area covers 46.50 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 34,069 | ±1,910 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 41.7 yrs | ±2.1 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 13,231 | ±657 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 13,888 | ±688 |
| Occupied Housing Units | 13,231 | ±657 |
| Vacant Housing Units | 657 | ±235 |
| Median Home Value | $304,800 | ±$14,100 |
| Median Gross Rent | $1,351 | ±$61 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $86,288 | ±$7,030 |
| Per Capita Income | $43,456 | ±$2,812 |
| Poverty Rate | 12.3% | ±2.9% |
| Population Below Poverty Level | 4,126 | ±1,015 |
| Unemployment Rate | 4.7% | ±1.3% |
| Civilian Labor Force, Employed | 16,134 | ±1,168 |
| Broadband Internet Rate | 91.3% | ±2.6% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 157,228 (2024)
ID: 208244
|
County | Official County Government |
Contact: PRESIDENT
100 W WASHINGTON ST, HAGERSTOWN MD 21740-4727
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | 09-12 | Hagerstown, MD | |
| Regular School Nearby | PK-02 | Martinsburg, WV | |
| Regular School Nearby | PK-05 | Hagerstown, MD | |
| Regular School Nearby | PK-05 | Boonsboro, MD | |
| Regular School Nearby | 09-12 | Boonsboro, MD | |
| Regular School Nearby | 06-08 | Boonsboro, MD | |
| Regular School Nearby | PK-05 | Cascade, MD | |
| Regular School Nearby | 09-12 | Thurmont, MD | |
| Regular School Nearby | PK-05 | Clear Spring, MD | |
| Regular School Nearby | 06-08 | Hagerstown, MD |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Hagerstown Community College
|
College | 3.4 mi away | 11400 Robinwood Dr, Hagerstown, MD, 21742-6514 |
2405002530
|
|
SMITHSBURG LIBRARY
|
Library | 4.3 mi away | 66 WEST WATER ST., SMITHSBURG, MD, 21783 |
(301) 824-7722
|
|
Award Beauty School
|
College Vocational | 4.4 mi away | 26 E Antietam St, Hagerstown, MD, 21740-5610 |
3014592509
|
|
ALICE VIRGINIA AND DAVID W. FLETCHER BRANCH
|
Library | 4.5 mi away | 100 S. POTOMAC ST., HAGERSTOWN, MD, 21740 |
(301) 739-3250
|
|
Pennsylvania State University-Penn State Mont Alto
|
College | 12.8 mi away | 1 Campus Drive, Mont Alto, PA, 17237-9700 |
7177496000
|
|
WASH BOOKMOBILE
|
Library | 4.5 mi away | 100 S. POTOMAC ST., HAGERSTOWN, MD, 21740 |
(301) 739-3250
|
|
Franklin County Career and Technology Center
|
College Vocational | 15.2 mi away | 2463 Loop Road, Chambersburg, PA, 17202 |
7172635667
|
|
ALEXANDER HAMILTON MEMORIAL FREE LIBRARY
|
Library | 6.7 mi away | 45 EAST MAIN STREET, WAYNESBORO, PA, 17268 |
(717) 762-3335
|
|
Mount St. Mary's University
|
College | 16.0 mi away | 16300 Old Emmitsburg Road, Emmitsburg, MD, 21727-7799 |
3014476122
|
|
LILIAN S. BESORE MEMORIAL LIBRARY
|
Library | 8.5 mi away | 305 EAST BALTIMORE STREET, GREENCASTLE, PA, 17225 |
(717) 597-7920
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at HAGERSTOWN 1 E, MD US, located 3.6 miles from ZCTA5 21742. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 39.8° | 22.3° | 31.1° | 3.23" | — |
| February | 43.5° | 24.7° | 34.1° | 2.66" | — |
| March | 52.9° | 31.7° | 42.3° | 3.90" | — |
| April | 65.0° | 41.2° | 53.1° | 3.87" | — |
| May | 74.1° | 53.0° | 63.6° | 4.31" | — |
| June | 82.6° | 61.6° | 72.1° | 3.43" | — |
| July | 86.2° | 66.4° | 76.3° | 3.66" | — |
| August | 85.1° | 64.9° | 75.0° | 3.66" | — |
| September | 78.2° | 56.1° | 67.1° | 4.80" | — |
| October | 66.1° | 44.7° | 55.4° | 3.42" | — |
| November | 53.8° | 34.3° | 44.1° | 2.92" | — |
| December | 44.0° | 27.3° | 35.7° | 3.69" | — |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Leitersburg CDP | CDP | 2.0 mi | — |
| Paramount-Long Meadow CDP | CDP | 2.1 mi | — |
| Chewsville CDP | CDP | 2.4 mi | — |
| Reid CDP | CDP | 2.8 mi | — |
| Fountainhead-Orchard Hills CDP | CDP | 3.5 mi | — |
| Robinwood CDP | CDP | 3.6 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 21742. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.