ZIP Code 21904, Maryland
ZIP Code 21904 profile, demographic data, and geographic information.
ZCTA5 21904 is a 5-digit ZIP Code area located in Cecil County, Maryland. As of official census estimates, it has a reported population of 6,233. The land area covers 23.60 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 6,233 | ±716 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 39.7 yrs | ±3.4 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 2,269 | ±234 | 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 | 2,622 | ±267 |
| Occupied Housing Units | 2,269 | ±234 |
| Vacant Housing Units | 353 | ±148 |
| Median Home Value | $333,500 | ±$33,291 |
| Median Gross Rent | $1,422 | ±$315 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $88,136 | ±$12,508 |
| Per Capita Income | $41,351 | ±$4,799 |
| Poverty Rate | 7.7% | ±3.7% |
| Population Below Poverty Level | 481 | ±235 |
| Unemployment Rate | 8.3% | ±4.5% |
| Civilian Labor Force, Employed | 2,704 | ±414 |
| Broadband Internet Rate | 94.8% | ±1% |
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: 106,305 (2024)
ID: 193454
|
County | Official County Government |
Contact: COUNTY COUNCIL PRESIDENT
200 CHESAPEAKE BLVD, STE 2110, ELKTON MD 21921-6659
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | 09-12 | Aberdeen, MD | |
| Regular School Nearby | 06-08 | Aberdeen, MD | |
| Regular School Nearby | PK-05 | Abingdon, MD | |
| Regular School Nearby | KG-12 | West Grove, PA | |
| Regular School Nearby | 09-12 | West Grove, PA | |
| Regular School Nearby | 02-05 | West Grove, PA | |
| Regular School Nearby | 06-08 | West Grove, PA | |
| Regular School Nearby | PK-05 | Port Deposit, MD | |
| Regular School Nearby | PK-05 | Aberdeen, MD | |
| Regular School Nearby | PK-05 | North East, 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 |
|---|---|---|---|---|
|
Cecil College
|
College | 6.2 mi away | One Seahawk Drive, North East, MD, 21901-1900 |
4102871000
|
|
PERRYVILLE BRANCH
|
Library | 3.2 mi away | 500 COUDON BOULEVARD, PERRYVILLE, MD, 21903 |
(410) 996-6070
|
|
Harford Community College
|
College | 12.0 mi away | 401 Thomas Run Rd, Bel Air, MD, 21015-1698 |
4434122000
|
|
HAVRE DE GRACE BRANCH
|
Library | 4.8 mi away | 120 N. UNION AVE., HAVRE DE GRACE, MD, 21078 |
(410) 939-6700
|
|
Lincoln University
|
College | 15.3 mi away | 1570 Baltimore Pike, Lincoln University, PA, 19352-0999 |
4843658000
|
|
RISING SUN BRANCH
|
Library | 5.5 mi away | 111 COLONIAL WAY, RISING SUN, MD, 21911 |
(410) 398-2706
|
|
Aveda Institute-Maryland
|
College Vocational | 16.1 mi away | 227 Archer St, Bel Air, MD, 21014-3639 |
41083808454
|
|
NORTH EAST BRANCH
|
Library | 6.4 mi away | 485 MAULDIN AVE, NORTH EAST, MD, 21901 |
(410) 996-6269
|
|
University of Delaware
|
College | 17.3 mi away | 104 Hullihen Hall, Newark, DE, 19716 |
3028312000
|
|
ABERDEEN BRANCH
|
Library | 8.8 mi away | 21 FRANKLIN ST., ABERDEEN, MD, 21001 |
(410) 273-5608
|
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 CONOWINGO DAM, MD US, located 6.3 miles from ZCTA5 21904. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 40.1° | 24.9° | 32.5° | 3.63" | — |
| February | 43.0° | 26.3° | 34.6° | 2.64" | — |
| March | 51.0° | 33.6° | 42.3° | 4.18" | — |
| April | 63.9° | 43.8° | 53.9° | 3.44" | — |
| May | 73.5° | 54.0° | 63.7° | 3.86" | — |
| June | 82.7° | 64.0° | 73.3° | 4.46" | — |
| July | 87.5° | 68.5° | 78.0° | 4.69" | — |
| August | 85.3° | 67.0° | 76.2° | 4.54" | — |
| September | 78.8° | 60.0° | 69.4° | 5.05" | — |
| October | 66.9° | 47.9° | 57.4° | 4.50" | — |
| November | 55.0° | 36.6° | 45.8° | 3.23" | — |
| December | 45.0° | 30.6° | 37.8° | 4.04" | — |
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 |
|---|---|---|---|
| Port Deposit town | Town | 1.7 mi | — |
| Perryville town | Town | 2.9 mi | — |
| Charlestown town | Town | 4.9 mi | — |
| Havre de Grace city | City | 5.3 mi | — |
| Rising Sun town | Town | 6.0 mi | — |
| North East town | Town | 6.7 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 21904. • 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.