Windsor Mill, MD 21244 ZIP Code Profile

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Windsor Mill, MD

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ZIP Code 21244: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Windsor Mill, MD 21244

Acceptable Alternative
Baltimore, MD 21244

  • ZIP Code Type: STANDARD
  • County: Baltimore County
  • Centroid: Latitude 39.333, Longitude -76.693
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 1,045
  • PO Box Addresses: 279
  • Residential Addresses: 14,580
    • Multi-Family Addresses: 5,118
    • Single Family Addresses: 9,462

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.


21244 ZIP Code Map

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Windsor Mill, MD 21244 Data & Demographics (As of July 1, 2017)


Total Population 35,420
Daytime Population: Workers 18,773
Daytime Population: Residents 16,926
Total Daytime Population (TDP) 35,699
Ratio TDP/Total Population1 1.01
Population in Households 35,181
Population in Familes 27,712
Population in Group Qrtrs 239
Population Density2 2,615
Diversity Index3 43


Median Household Income $59,659
Average Household Income $70,504
Per Capita Income $27,162


Total Housing Units 14,374 (100%)
Owner Occupied HU 6,340 (44.1%)
Renter Occupied HU 7,182 (50.0%)
Vacant Housing Units 852 ( 5.9%)
Median Home Value $225,274
Average Home Value $245,603


Total Households 13,522
Average Household Size 2.6
Family Households 8,724
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 0.53% 0.52%
Households 0.27% 0.38%
Families 0.15% 0.3%
Median Household Income   1.06%
Per Capita Income   1.98%

Windsor Mill, MD 21244 - Peer Comparisons by Rank and Percentile

The table below compares 21244 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 # 58 88th
Population Density # 93 80th
Diversity Index # 198 57th
Median Household Income # 328 28th
Per Capita Income # 361 21st

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

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