Baltimore, MD 21239 ZIP Code Profile

Related Place Profiles:
Baltimore, MD

ZIP Code 21239: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Baltimore, MD 21239

Acceptable Alternative
Idlewylde, MD 21239
Loch Hill, MD 21239
Northwood, MD 21239

  • ZIP Code Type: STANDARD
  • County: Baltimore City County
  • Centroid: Latitude 39.359, Longitude -76.591
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 21239 has segments in 2 Counties / Independent Cities (Baltimore, Baltimore City).

  • Businesses Addresses: 400
  • PO Box Addresses: 432
  • Residential Addresses: 12,810
    • Multi-Family Addresses: 4,394
    • Single Family Addresses: 8,416

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


21239 ZIP Code Map

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Baltimore, MD 21239 Data & Demographics (As of July 1, 2017)


Total Population 27,499
Daytime Population: Workers 4,796
Daytime Population: Residents 14,066
Total Daytime Population (TDP) 18,862
Ratio TDP/Total Population1 0.69
Population in Households 26,335
Population in Familes 19,860
Population in Group Qrtrs 1,164
Population Density2 9,089
Diversity Index3 35


Median Household Income $50,289
Average Household Income $60,609
Per Capita Income $25,841


Total Housing Units 12,165 (100%)
Owner Occupied HU 6,093 (50.1%)
Renter Occupied HU 5,097 (41.9%)
Vacant Housing Units 975 ( 8.0%)
Median Home Value $160,590
Average Home Value $183,666


Total Households 11,190
Average Household Size 2.35
Family Households 6,682
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.2% -0.09%
Households -0.22% -0.1%
Families -0.27% -0.16%
Median Household Income   0.51%
Per Capita Income   1.91%

Baltimore, MD 21239 - Peer Comparisons by Rank and Percentile

The table below compares 21239 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 91 80th
Population Density # 14 97th
Diversity Index # 258 44th
Median Household Income # 395 14th
Per Capita Income # 380 17th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.

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