ZIP Code 21078, Maryland
ZIP Code 21078 profile, demographic data, and geographic information.
ZCTA5 21078 is a 5-digit ZIP Code area located in Harford County, Maryland. As of official census estimates, it has a reported population of 20,030. The land area covers 30.10 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 20,030 | ±745 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 46.8 yrs | ±2.4 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 8,476 | ±376 | 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 | 8,869 | ±372 |
| Occupied Housing Units | 8,476 | ±376 |
| Vacant Housing Units | 393 | ±180 |
| Median Home Value | $385,600 | ±$17,522 |
| Median Gross Rent | $1,433 | ±$102 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $106,667 | ±$10,243 |
| Per Capita Income | $53,163 | ±$4,010 |
| Poverty Rate | 8.5% | ±2.3% |
| Population Below Poverty Level | 1,684 | ±452 |
| Unemployment Rate | 3.6% | ±1.8% |
| Civilian Labor Force, Employed | 10,378 | ±643 |
| Broadband Internet Rate | 92.7% | ±3% |
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: 265,514 (2024)
ID: 166365
|
County | Official County Government |
Contact: DEPUTY TREASURER
220 S MAIN ST, BEL AIR MD 21014-3820
|
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 | PK-05 | Port Deposit, MD | |
| Regular School Nearby | PK-05 | Aberdeen, MD | |
| Regular School Nearby | PK-05 | North East, MD | |
| Regular School Nearby | PK-05 | Bel Air, MD | |
| Regular School Nearby | 09-12 | Bel Air, MD | |
| Regular School Nearby | 06-08 | Bel Air, MD | |
| Regular School Nearby | 09-12 | Bel Air, 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 |
|---|---|---|---|---|
|
Harford Community College
|
College | 7.6 mi away | 401 Thomas Run Rd, Bel Air, MD, 21015-1698 |
4434122000
|
|
HAVRE DE GRACE BRANCH
|
Library | 2.7 mi away | 120 N. UNION AVE., HAVRE DE GRACE, MD, 21078 |
(410) 939-6700
|
|
Aveda Institute-Maryland
|
College Vocational | 11.3 mi away | 227 Archer St, Bel Air, MD, 21014-3639 |
41083808454
|
|
ABERDEEN BRANCH
|
Library | 3.5 mi away | 21 FRANKLIN ST., ABERDEEN, MD, 21001 |
(410) 273-5608
|
|
Cecil College
|
College | 11.4 mi away | One Seahawk Drive, North East, MD, 21901-1900 |
4102871000
|
|
PERRYVILLE BRANCH
|
Library | 4.1 mi away | 500 COUDON BOULEVARD, PERRYVILLE, MD, 21903 |
(410) 996-6070
|
|
Lincoln University
|
College | 20.6 mi away | 1570 Baltimore Pike, Lincoln University, PA, 19352-0999 |
4843658000
|
|
DARLINGTON BRANCH
|
Library | 8.6 mi away | 3535 CONOWINGO ROAD, STREET, MD, 21154 |
(410) 638-3750
|
|
University of Delaware
|
College | 22.3 mi away | 104 Hullihen Hall, Newark, DE, 19716 |
3028312000
|
|
RISING SUN BRANCH
|
Library | 10.4 mi away | 111 COLONIAL WAY, RISING SUN, MD, 21911 |
(410) 398-2706
|
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 ABERDEEN PHILLIPS FLD, MD US, located 6.2 miles from ZCTA5 21078. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 41.5° | 25.3° | 33.4° | 3.26" | — |
| February | 44.1° | 27.1° | 35.6° | 2.78" | — |
| March | 52.5° | 33.1° | 42.8° | 4.10" | — |
| April | 64.8° | 43.2° | 54.0° | 3.49" | — |
| May | 73.2° | 52.7° | 62.9° | 3.98" | — |
| June | 82.1° | 62.4° | 72.2° | 4.28" | — |
| July | 86.4° | 67.7° | 77.1° | 4.84" | — |
| August | 84.4° | 65.8° | 75.1° | 4.21" | — |
| September | 78.2° | 58.8° | 68.5° | 4.84" | — |
| October | 66.9° | 46.5° | 56.7° | 4.17" | — |
| November | 55.5° | 36.8° | 46.1° | 3.27" | — |
| December | 45.8° | 30.2° | 38.0° | 3.89" | — |
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 |
|---|---|---|---|
| Havre de Grace city | City | 1.7 mi | — |
| Aberdeen city | City | 3.4 mi | — |
| Perryville town | Town | 4.2 mi | — |
| Port Deposit town | Town | 4.2 mi | — |
| Darlington CDP | CDP | 6.7 mi | — |
| Aberdeen Proving Ground CDP | CDP | 7.2 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 21078. • 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.