Catonsville, MD 21228 ZIP Code Profile

Related Place Profiles:
Catonsville, MD

ZIP Code 21228: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Catonsville, MD 21228

Acceptable Alternative
Baltimore, MD 21228

  • ZIP Code Type: STANDARD
  • County: Baltimore County
  • Centroid: Latitude 39.328, Longitude -76.744
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 21228 has segments in 2 Counties / Independent Cities (Baltimore, Baltimore City).

  • Businesses Addresses: 1,396
  • PO Box Addresses: 285
  • Residential Addresses: 19,386
    • Multi-Family Addresses: 4,161
    • Single Family Addresses: 15,225

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2019, Maps updated: February 1, 2019.

Jump to... (On This Page!)
  1. 21228 2018 Demographic Data
  2. Growth Rates for 21228 (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Maryland Research Tools (Easy Tools & Current Data)
  3. Maryland Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Catonsville, MD 21228 Data & Demographics (As of July 1, 2018)


Total Population 52,209
Population in Households 47,177
Population in Familes 36,980
Population in Group Qrtrs 5,032
Population Density2 3,253
Diversity Index3 63


Median Household Income $78,807
Average Household Income $98,038
Per Capita Income $37,815


Total Housing Units 20,233 (100%)
Owner Occupied HU 13,407 (66.3%)
Renter Occupied HU 5,879 (29.1%)
Vacant Housing Units 947 ( 4.7%)
Median Home Value $316,658
Average Home Value $342,937


Total Households 19,286
Average Household Size 2.45
Family Households 11,755
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.4% 0.36%
Households 0.2% 0.28%
Families 0.07% 0.18%
Median Household Income   2.86%
Per Capita Income   3.02%

Catonsville, MD 21228 - Peer Comparisons by Rank and Percentile

The table below compares 21228 to the other 448 ZIP Codes in Maryland by rank and percentile using July 1, 2018 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 # 15 97th
Population Density # 75 83rd
Diversity Index # 78 83rd
Median Household Income # 227 50th
Per Capita Income # 214 52nd

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

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