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: 862
  • PO Box Addresses: 0
  • Residential Addresses: 5,383
    • Multi-Family Addresses: 150
    • Single Family Addresses: 5,233

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.


21704 ZIP Code Map

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Frederick, MD 21704 Data & Demographics (As of July 1, 2017)


Total Population 16,451
Daytime Population: Workers 16,026
Daytime Population: Residents 7,911
Total Daytime Population (TDP) 23,937
Ratio TDP/Total Population1 1.46
Population in Households 16,349
Population in Familes 14,730
Population in Group Qrtrs 102
Population Density2 612
Diversity Index3 60


Median Household Income $120,386
Average Household Income $141,286
Per Capita Income $44,327


Total Housing Units 5,423 (100%)
Owner Occupied HU 4,415 (81.4%)
Renter Occupied HU 720 (13.3%)
Vacant Housing Units 288 ( 5.3%)
Median Home Value $422,618
Average Home Value $455,997


Total Households 5,135
Average Household Size 3.18
Family Households 4,149
Average Family Size 4
  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 2.95% 1.92%
Households 2.65% 1.81%
Families 2.73% 1.82%
Median Household Income   2.3%
Per Capita Income   2.65%

Frederick, MD 21704 - Peer Comparisons by Rank and Percentile

The table below compares 21704 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 # 141 69th
Population Density # 190 59th
Diversity Index # 96 79th
Median Household Income # 44 91st
Per Capita Income # 125 73rd

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

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