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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of La Plata, MD

La Plata, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 20646StandardCharles18,890

Timezone(s):Eastern (GMT -05:00)
Counties:CHARLES, MD
Population:8,753 (More Details)
Male Population:4,229
Female Population:4,524
Median Age:38
ZIP Codes:1
Area Codes:2
Total Area:643 square miles (county)
Land Area:458 square miles (county)
Water Area:185 square miles (county)

La Plata, MD Demographic Information *

Total population8,753
Male population4,229
Female population4,524
Median age (years)38.4
White Population5,800
Black Population2,339
Indian Population47
Asian Population233
Hawaiian Population10
Hispanic Population276
Median age (Male)34.9
Median age (Female)40.8
Total households3,062
Family households (families)2,091
Average household size2.62
Average family size3.17
Total housing units3,234
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],