Linthicum Heights, MD 21090 ZIP Code Profile

Related Place Profiles:
Linthicum, MD | Linthicum Heights, MD

ZIP Code 21090: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Linthicum Heights, MD 21090

Acceptable Alternative
Linthicum, MD 21090
Linthicum Hts, MD 21090

  • ZIP Code Type: STANDARD
  • County: Anne Arundel County
  • Centroid: Latitude 39.206, Longitude -76.658
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 699
  • PO Box Addresses: 209
  • Residential Addresses: 4,089
    • Multi-Family Addresses: 4
    • Single Family Addresses: 4,085

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.


21090 ZIP Code Map

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Linthicum Heights, MD 21090 Data & Demographics (As of July 1, 2017)


Total Population 10,213
Daytime Population: Workers 12,654
Daytime Population: Residents 5,000
Total Daytime Population (TDP) 17,654
Ratio TDP/Total Population1 1.73
Population in Households 10,194
Population in Familes 8,484
Population in Group Qrtrs 19
Population Density2 1,614
Diversity Index3 30


Median Household Income $81,989
Average Household Income $96,922
Per Capita Income $36,681


Total Housing Units 4,083 (100%)
Owner Occupied HU 3,176 (77.8%)
Renter Occupied HU 682 (16.7%)
Vacant Housing Units 225 ( 5.5%)
Median Home Value $309,974
Average Home Value $328,692


Total Households 3,858
Average Household Size 2.64
Family Households 2,748
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 0.57% 0.73%
Households 0.43% 0.63%
Families 0.42% 0.56%
Median Household Income   1.68%
Per Capita Income   2.24%

Linthicum Heights, MD 21090 - Peer Comparisons by Rank and Percentile

The table below compares 21090 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 # 184 60th
Population Density # 129 72nd
Diversity Index # 290 37th
Median Household Income # 196 57th
Per Capita Income # 212 54th

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

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