Frederick, MD 21704 ZIP Code Profile

Related Place Profiles:
Frederick, MD | Urbana, MD

ZIP Code 21704: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Frederick, MD 21704

Acceptable Alternative
Urbana, MD 21704

  • ZIP Code Type: STANDARD
  • County: Frederick County
  • Centroid: Latitude 39.374, Longitude -77.39
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 875
  • PO Box Addresses: 0
  • Residential Addresses: 5,509
    • Multi-Family Addresses: 150
    • Single Family Addresses: 5,359

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.

Jump to... (On This Page!)
  1. 21704 2018 Demographic Data
  2. Growth Rates for 21704 (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Maryland Research Tools (Easy Tools & Current Data)
  3. Maryland Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Frederick, MD 21704 Data & Demographics (As of July 1, 2018)


Total Population 16,596
Population in Households 16,494
Population in Familes 14,906
Population in Group Qrtrs 102
Population Density2 637
Diversity Index3 60


Median Household Income $122,716
Average Household Income $142,918
Per Capita Income $44,910


Total Housing Units 5,478 (100%)
Owner Occupied HU 4,317 (78.8%)
Renter Occupied HU 872 (15.9%)
Vacant Housing Units 289 ( 5.3%)
Median Home Value $433,244
Average Home Value $467,634


Total Households 5,189
Average Household Size 3.18
Family Households 4,193
Average Family Size 4
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 3.42% 2.59%
Households 3.2% 2.59%
Families 3.28% 2.61%
Median Household Income   2.11%
Per Capita Income   2.85%

Frederick, MD 21704 - Peer Comparisons by Rank and Percentile

The table below compares 21704 to the other 448 ZIP Codes in Maryland by rank and percentile using July 1, 2018 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 # 144 68th
Population Density # 188 58th
Diversity Index # 93 79th
Median Household Income # 49 89th
Per Capita Income # 134 70th

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

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Compare Maryland July 1, 2018 Data
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