Frederick, MD 21702 ZIP Code Profile

Related Place Profiles:
College Estates, MD | Frederick, MD

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ZIP Code 21702: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Frederick, MD 21702

Acceptable Alternative
Fort Detrick, MD 21702

Not Acceptable, USPS
College Estates, MD 21702

  • ZIP Code Type: STANDARD
  • County: Frederick County
  • Centroid: Latitude 39.494, Longitude -77.454
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 1,111
  • PO Box Addresses: 367
  • Residential Addresses: 16,443
    • Multi-Family Addresses: 3,645
    • Single Family Addresses: 12,798

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.


21702 ZIP Code Map

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Frederick, MD 21702 Data & Demographics (As of July 1, 2017)


Total Population 42,014
Daytime Population: Workers 23,984
Daytime Population: Residents 20,028
Total Daytime Population (TDP) 44,012
Ratio TDP/Total Population1 1.05
Population in Households 41,535
Population in Familes 33,505
Population in Group Qrtrs 479
Population Density2 920
Diversity Index3 68


Median Household Income $76,782
Average Household Income $94,222
Per Capita Income $35,789


Total Housing Units 16,915 (100%)
Owner Occupied HU 9,823 (58.1%)
Renter Occupied HU 5,978 (35.3%)
Vacant Housing Units 1,114 ( 6.6%)
Median Home Value $300,952
Average Home Value $324,847


Total Households 15,801
Average Household Size 2.63
Family Households 10,521
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 0.92% 0.99%
Households 0.89% 0.98%
Families 0.73% 0.87%
Median Household Income   1.4%
Per Capita Income   2.35%

Frederick, MD 21702 - Peer Comparisons by Rank and Percentile

The table below compares 21702 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 # 34 93rd
Population Density # 161 65th
Diversity Index # 52 89th
Median Household Income # 222 52nd
Per Capita Income # 231 50th

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

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