La Plata, MD 20646 ZIP Code Profile

Related Place Profiles:
Dentsville, MD | La Plata, MD

ZIP Code 20646: Basic Data & USPS Preferred City Name

Preferred Name, USPS
La Plata, MD 20646

Acceptable Alternative
Dentsville, MD 20646

Not Acceptable, USPS
Laplata, MD 20646

  • ZIP Code Type: STANDARD
  • County: Charles County
  • Centroid: Latitude 38.525, Longitude -76.974
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 849
  • PO Box Addresses: 781
  • Residential Addresses: 7,208
    • Multi-Family Addresses: 294
    • Single Family Addresses: 6,914

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2019, Maps updated: February 1, 2019.

Jump to... (On This Page!)
  1. 20646 2018 Demographic Data
  2. Growth Rates for 20646 (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

Popular Places Near ZIP Code 20646

Research a Maryland Address and get...

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.


La Plata, MD 20646 Data & Demographics (As of July 1, 2018)


Total Population 21,152
Population in Households 20,427
Population in Familes 17,599
Population in Group Qrtrs 725
Population Density2 253
Diversity Index3 57


Median Household Income $97,986
Average Household Income $118,785
Per Capita Income $42,977


Total Housing Units 7,913 (100%)
Owner Occupied HU 6,034 (76.3%)
Renter Occupied HU 1,396 (17.6%)
Vacant Housing Units 483 ( 6.1%)
Median Home Value $383,919
Average Home Value $427,337


Total Households 7,430
Average Household Size 2.75
Family Households 5,507
Average Family Size 3
  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 0.97% 1.01%
Households 1.05% 1.1%
Families 0.9% 0.98%
Median Household Income   2.02%
Per Capita Income   2.97%

La Plata, MD 20646 - Peer Comparisons by Rank and Percentile

The table below compares 20646 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 # 123 73rd
Population Density # 269 40th
Diversity Index # 114 75th
Median Household Income # 150 67th
Per Capita Income # 162 64th

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

Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. View Boundary Maps, for Cities, Towns, and ZIP Codes
  3. Locate Physical, Cultural, and Historical Features
  4. Research Public Schools & Attendance Zones

Maryland Census Data Comparison Tool

Compare Maryland July 1, 2018 Data
Highest or Lowest: