Prince Frederick, MD 20678 ZIP Code Profile

Related Place Profiles:
Dares Beach, MD | Prince Frederick, MD

ZIP Code 20678: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Prince Frederick, MD 20678

Acceptable Alternative
Dares Beach, MD 20678
Prnc Frederck, MD 20678

Not Acceptable, USPS
Pr Frederick, MD 20678

  • ZIP Code Type: STANDARD
  • County: Calvert County
  • Centroid: Latitude 38.532, Longitude -76.587
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 782
  • PO Box Addresses: 573
  • Residential Addresses: 4,199
    • Multi-Family Addresses: 189
    • Single Family Addresses: 4,010

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

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20678 ZIP Code Map

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Prince Frederick, MD 20678 Data & Demographics (As of July 1, 2017)


Total Population 12,235
Daytime Population: Workers 10,758
Daytime Population: Residents 5,803
Total Daytime Population (TDP) 16,561
Ratio TDP/Total Population1 1.35
Population in Households 11,820
Population in Familes 10,035
Population in Group Qrtrs 415
Population Density2 278
Diversity Index3 47


Median Household Income $81,375
Average Household Income $99,088
Per Capita Income $35,836


Total Housing Units 4,603 (100%)
Owner Occupied HU 3,050 (66.3%)
Renter Occupied HU 1,222 (26.5%)
Vacant Housing Units 331 ( 7.2%)
Median Home Value $371,605
Average Home Value $420,951


Total Households 4,272
Average Household Size 2.77
Family Households 3,136
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 1.26% 1.04%
Households 1.28% 1.06%
Families 1.16% 0.98%
Median Household Income   1.98%
Per Capita Income   2.46%

Prince Frederick, MD 20678 - Peer Comparisons by Rank and Percentile

The table below compares 20678 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 # 168 63rd
Population Density # 262 43rd
Diversity Index # 164 64th
Median Household Income # 201 56th
Per Capita Income # 230 50th

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

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