Essex, MD 21221 ZIP Code Profile

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Essex, MD

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ZIP Code 21221: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Essex, MD 21221

Acceptable Alternative
Baltimore, MD 21221

  • ZIP Code Type: STANDARD
  • County: Baltimore County
  • Centroid: Latitude 39.295, Longitude -76.437
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 881
  • PO Box Addresses: 311
  • Residential Addresses: 17,865
    • Multi-Family Addresses: 4,177
    • Single Family Addresses: 13,688

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.


21221 ZIP Code Map

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Essex, MD 21221 Data & Demographics (As of July 1, 2017)


Total Population 43,737
Daytime Population: Workers 9,213
Daytime Population: Residents 22,504
Total Daytime Population (TDP) 31,717
Ratio TDP/Total Population1 0.73
Population in Households 43,410
Population in Familes 34,129
Population in Group Qrtrs 327
Population Density2 2,642
Diversity Index3 58


Median Household Income $52,332
Average Household Income $65,532
Per Capita Income $25,965


Total Housing Units 18,348 (100%)
Owner Occupied HU 9,474 (51.6%)
Renter Occupied HU 7,673 (41.8%)
Vacant Housing Units 1,201 ( 6.5%)
Median Home Value $205,672
Average Home Value $250,789


Total Households 17,147
Average Household Size 2.53
Family Households 10,988
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 0.5% 0.51%
Households 0.3% 0.41%
Families 0.17% 0.32%
Median Household Income   1.08%
Per Capita Income   2.21%

Essex, MD 21221 - Peer Comparisons by Rank and Percentile

The table below compares 21221 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 # 29 94th
Population Density # 91 80th
Diversity Index # 103 78th
Median Household Income # 378 17th
Per Capita Income # 378 17th

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

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