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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Eldridge, CA

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Counties:SONOMA, CA
Area Code(s):707
Timezone(s):Pacific (GMT -08:00)
City Population:1,233 (More Details)
CBSA:Santa Rosa-Petaluma, CA
Congressional District(s):05
Land Area:1,576 square miles (county)
Water Area:192 square miles (county)

1 ZIP Code

Eldridge, CA ZIP Code Boundaries

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Eldridge, CA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
95431P.O. Box631100.00%

Eldridge, CA Demographic Information *

Total population**1,233
Male population619
Female population614
Median age (years)39.8
White Population988
Black Population10
Indian Population3
Asian Population36
Hawaiian Population6
Hispanic Population325
Median age (Male)37.1
Median age (Female)41.7
Total households500
Family households (families)316
Average household size2.46
Average family size3.02
Total housing units563
* Demographic data is based on 2010 Census for the City of ELDRIDGE.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  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],