Port Republic, MD 20676 ZIP Code Profile

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Port Republic, MD

ZIP Code 20676: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Port Republic, MD 20676

  • ZIP Code Type: STANDARD
  • County: Calvert County
  • Centroid: Latitude 38.492, Longitude -76.534
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 39
  • PO Box Addresses: 132
  • Residential Addresses: 1,326
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1,326

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.


20676 ZIP Code Map

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Port Republic, MD 20676 Data & Demographics (As of July 1, 2017)


Total Population 3,604
Daytime Population: Workers 300
Daytime Population: Residents 1,777
Total Daytime Population (TDP) 2,077
Ratio TDP/Total Population1 0.58
Population in Households 3,597
Population in Familes 3,141
Population in Group Qrtrs 7
Population Density2 253
Diversity Index3 37


Median Household Income $103,222
Average Household Income $120,605
Per Capita Income $41,928


Total Housing Units 1,479 (100%)
Owner Occupied HU 1,087 (73.5%)
Renter Occupied HU 164 (11.1%)
Vacant Housing Units 228 (15.4%)
Median Home Value $388,766
Average Home Value $430,106


Total Households 1,251
Average Household Size 2.88
Family Households 965
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 0.66% 0.73%
Households 0.66% 0.76%
Families 0.56% 0.72%
Median Household Income   1.1%
Per Capita Income   2.08%

Port Republic, MD 20676 - Peer Comparisons by Rank and Percentile

The table below compares 20676 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 # 259 43rd
Population Density # 278 39th
Diversity Index # 237 48th
Median Household Income # 111 76th
Per Capita Income # 153 67th

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

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