Catonsville, MD 21228 ZIP Code Profile

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Catonsville, MD

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ZIP Code 21228: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Catonsville, MD 21228

Acceptable Alternative
Baltimore, MD 21228

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,432
  • Single Family Addresses: 15,166
  • Multi-Family Addresses: 4,176
  • 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).

Neighborhood Data

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21228 ZIP Code Map

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Catonsville, MD 21228 Data & Demographics (As of July 1, 2016)


Total Population 52,386
Population in Households 47,416
Population in Familes 36,923
Population in Group Qrtrs 4,970
Population Density1 3,286
Diversity Index2 61


Total Households 19,525
Average Household Size 2.43
Family Households 11,905
Average Family Size 3


Total Housing Units 20,502 (100%)
Owner Occupied HU 13,184 (64.3%)
Renter Occupied HU 6,341 (30.9%)
Vacant Housing Units 977 ( 4.8%)
Median Home Value $298,195
Average Home Value $329,037


Median Household Income $73,140
Average Household Income $91,407
Per Capita Income $35,678
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.43% 0.51%
Households 0.29% 0.46%
Families 0.14% 0.35%
Median Household Income   2.14%
Per Capita Income   1.63%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Catonsville, MD 21228 - Peer Comparisons by Rank and Percentile

The table below compares 21228 to the other 455 ZIP Codes in Maryland by rank and percentile using July 1, 2016 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 # 14 97th
Population Density1 # 74 84th
Diversity Index2 # 82 82nd
Median Household Income # 235 49th
Per Capita Income # 215 53rd

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