Patuxent River, MD 20670 ZIP Code Profile


ZIP Code 20670: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Patuxent River, MD 20670

Acceptable Alternative
Patuxent Rvr, MD 20670

Not Acceptable, USPS
Patuxent River Naval Air Sta, MD 20670

  • ZIP Code Type: STANDARD
  • County: Saint Marys County
  • Centroid: Latitude 38.281, Longitude -76.42
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 138
  • PO Box Addresses: 226
  • Residential Addresses: 816
    • Multi-Family Addresses: 0
    • Single Family Addresses: 816

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.


20670 ZIP Code Map

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Patuxent River, MD 20670 Data & Demographics (As of July 1, 2017)


Total Population 1,074
Daytime Population: Workers 3,975
Daytime Population: Residents 496
Total Daytime Population (TDP) 4,471
Ratio TDP/Total Population1 4.16
Population in Households 856
Population in Familes 826
Population in Group Qrtrs 218
Population Density2 107
Diversity Index3 66


Median Household Income $56,460
Average Household Income $80,647
Per Capita Income $20,094


Total Housing Units 229 (100%)
Owner Occupied HU 1 ( 0.4%)
Renter Occupied HU 214 (93.4%)
Vacant Housing Units 14 ( 6.1%)
Median Home Value $0
Average Home Value $0


Total Households 215
Average Household Size 3.98
Family Households 193
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 0.8% 0.39%
Households 0.13% 0.28%
Families 0.07% 0.21%
Median Household Income   1.46%
Per Capita Income   1.61%

Patuxent River, MD 20670 - Peer Comparisons by Rank and Percentile

The table below compares 20670 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 # 348 24th
Population Density # 351 23rd
Diversity Index # 61 87th
Median Household Income # 351 23rd
Per Capita Income # 436 5th

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

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