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ZIP Code 21057, Maryland

ZIP Code 21057 profile, demographic data, and geographic information.

ZCTA5 21057 is a 5-digit ZIP Code area located in Baltimore County, Maryland. As of official census estimates, it has a reported population of 4,386. The land area covers 15.89 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 4,386 ±828 2020-2024 / Census ACS 5-Year 2024
Median Age 41.3 yrs ±6.1 2020-2024 / Census ACS 5-Year 2024
Total Households 1,545 ±194 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 1,603 ±192
Occupied Housing Units 1,545 ±194
Vacant Housing Units 58 ±43
Median Home Value $623,200 ±$36,703
Median Gross Rent $1,746 ±$270
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $145,924 ±$40,333
Per Capita Income $61,920 ±$6,718
Poverty Rate 3.1% ±2.1%
Population Below Poverty Level 133 ±95
Unemployment Rate 1.7% ±1.6%
Civilian Labor Force, Employed 2,139 ±366
Broadband Internet Rate 92.9% ±5.5%
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: 852,425 (2024)
ID: 166363
County Official County Government
Contact: KEITH DORSEY
400 WASHINGTON AVE, TOWSON MD 21204-4606

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby PK-05 Baltimore, MD
Regular School Nearby PK-05 Abingdon, MD
Regular School Nearby 06-12 Baltimore, MD
Alternative School Nearby 09-12 Baltimore, MD
Regular School Nearby PK-05 Baltimore, MD
Regular School Nearby 06-08 Baltimore, MD
Regular School Nearby PK-05 Baltimore, MD
Regular School Nearby PK-08 Baltimore, MD
Regular School Nearby PK-02 Baltimore, MD
Regular School Nearby 09-12 Baltimore, 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
Goucher College
College 5.1 mi away 1021 Dulaney Valley Rd, Baltimore, MD, 21204-2794
4103376000
PARKVILLE-CARNEY BRANCH
Library 3.9 mi away 9509 HARFORD RD., BALTIMORE, MD, 21234
(410) 887-5353
Fortis Institute-Towson
College Vocational 5.8 mi away 700 York Road, Towson, MD, 21204-9840
4103375155
PERRY HALL BRANCH
Library 4.1 mi away 9685 HONEYGO BLVD., BALTIMORE, MD, 21128
(410) 887-5195
Baltimore Beauty & Barber School II
College Vocational 6.0 mi away 29 Greenmeadow Drive, Timonium, MD, 21093-3208
4432752038
LOCH RAVEN
Library 5.5 mi away 1046 TAYLOR AVENUE, TOWSON, MD, 21286
(410) 887-4444
Towson University
College 6.5 mi away 8000 York Rd, Towson, MD, 21252-0001
4107042000
WHITE MARSH BRANCH
Library 5.7 mi away 8133 SANDPIPER CIRCLE, BALTIMORE, MD, 21236
(410) 887-5097
Community College of Baltimore County
College 6.8 mi away 7201 Rossville Boulevard, Baltimore, MD, 21237
4438402222
TOWSON BRANCH
Library 5.9 mi away 320 YORK RD., TOWSON, MD, 21204
(410) 887-6166
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 MD SCI CTR BALTIMORE, MD US, located 12.7 miles from ZCTA5 21057. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 43.7° 30.0° 36.9° 3.07" —
February 46.8° 31.9° 39.4° 2.75" —
March 55.2° 38.7° 46.9° 3.93" —
April 66.8° 48.2° 57.5° 3.55" —
May 75.9° 58.0° 67.0° 3.39" —
June 85.4° 67.7° 76.6° 3.36" —
July 90.1° 72.9° 81.5° 4.71" —
August 87.3° 71.0° 79.1° 4.35" —
September 80.4° 64.5° 72.5° 4.49" —
October 68.8° 52.6° 60.7° 3.49" —
November 57.6° 42.6° 50.1° 2.98" —
December 48.0° 34.6° 41.3° 3.66" —
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
Carney CDP CDP 3.1 mi —
Hampton CDP CDP 3.1 mi —
Perry Hall CDP CDP 3.4 mi —
Kingsville CDP CDP 4.4 mi —
Timonium CDP CDP 4.8 mi —
Parkville CDP CDP 5.0 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 21057. • Official Source Dataset →
  2. 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.
  3. 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.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.