Elkridge, MD 21075 ZIP Code Profile

Related Place Profiles:
Elkridge, MD

Camera Icon Photos of the local Elkridge, MD area

ZIP Code 21075: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Elkridge, MD 21075

  • ZIP Code Type: STANDARD
  • County: Howard County
  • Centroid: Latitude 39.201, Longitude -76.753
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 1,037
  • PO Box Addresses: 236
  • Residential Addresses: 11,985
    • Multi-Family Addresses: 2,644
    • Single Family Addresses: 9,341

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


21075 ZIP Code Map

Search the map for:

Elkridge, MD 21075 Data & Demographics (As of July 1, 2017)


Total Population 30,661
Daytime Population: Workers 12,358
Daytime Population: Residents 14,060
Total Daytime Population (TDP) 26,418
Ratio TDP/Total Population1 0.86
Population in Households 30,453
Population in Familes 25,400
Population in Group Qrtrs 208
Population Density2 2,210
Diversity Index3 68


Median Household Income $99,420
Average Household Income $117,496
Per Capita Income $42,704


Total Housing Units 11,664 (100%)
Owner Occupied HU 8,031 (68.9%)
Renter Occupied HU 3,048 (26.1%)
Vacant Housing Units 585 ( 5.0%)
Median Home Value $350,855
Average Home Value $375,019


Total Households 11,079
Average Household Size 2.75
Family Households 7,779
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 2.1% 1.85%
Households 1.92% 1.77%
Families 1.81% 1.67%
Median Household Income   1.54%
Per Capita Income   2.42%

Elkridge, MD 21075 - Peer Comparisons by Rank and Percentile

The table below compares 21075 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 # 80 83rd
Population Density # 107 77th
Diversity Index # 57 88th
Median Household Income # 123 73rd
Per Capita Income # 142 69th

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

Maryland Research Tools

Maryland Census Data Comparison Tool

Compare Maryland Census Data
Highest or Lowest: