Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: January 1, 2022

ZIP Codes for City of San Diego, TX

San Diego, TX Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 78384StandardDuval6,640361

Timezone(s):Central (GMT -06:00)
Counties:DUVAL, TX
Population:4,488 (More Details)
Male Population:2,131
Female Population:2,357
Median Age:33
ZIP Codes:1
Area Codes:1
Total Area:1,796 square miles (county)
Land Area:1,793 square miles (county)
Water Area:2 square miles (county)

San Diego, TX Demographic Information *

Total population4,488
Male population2,131
Female population2,357
Median age (years)33.4
White Population3,991
Black Population17
Indian Population10
Asian Population4
Hawaiian Population0
Hispanic Population4,220
Median age (Male)31.8
Median age (Female)35.1
Total households1,496
Family households (families)1,110
Average household size2.96
Average family size3.46
Total housing units1,818
* Demographic data is based on 2010 Census.

San Diego, TX Other Information

  • Located in DUVAL County, Texas
  • San Diego, TX is also known as:
    • ROSITA, TX

13 Cities within 30 miles of San Diego, TX Products


  1. U.S. Postal Service [Last Updated: 1/1/2022],
  2. Internal Data Creation [Last Updated: 1/1/2022],
  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],