ZIP Code 92331 in Fontana, CA

Data Last Updated: January 1, 2026
City:Fontana, California
County:San Bernardino County
Timezone:Pacific (GMT -08:00)
Local Time:10:20:57 PM
Population:No Population Data
Area Codes:840 / 909
Classification:PO Box
Coordinates:34.0600, -117.4400
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https://www.zip-codes.com/zip-code/92331/zip-code-92331.asp

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92331 - Fontana, CA

ZIP Code 92331, Fontana

Small Town Unique ZIP No Census Data
LocationSan Bernardino County, CA
Area0 sq mi Single Point
Delivery Points722 (255 businesses)
PO Boxes467
ZIP CreatedMay 2006
Enclosed InZIP Code 92337
Key Facts
  • This ZIP code serves 467 PO Boxes from a single facility location on Santa Ana Avenue in Fontana.
  • The facility supports 255 business accounts, indicating its primary function as a commercial mail hub.
  • Street delivery for the area comes through neighboring ZIP code 92337, which geographically contains this location.
  • Despite having a 'P' classification for PO Boxes only, residents and businesses in the area aren't limited to PO Box service because alternative street delivery exists nearby.
  • The facility handles 94 unit-based delivery records at its Santa Ana Avenue address, functioning as a large-volume receiver site.
  • Located in Fontana within San Bernardino County, this postal facility has been in operation since May 2006.

Postal Service Structure

Residents and businesses in this area receive their street delivery through neighboring ZIP code 92337, which encompasses this location geographically. The Santa Ana Avenue facility handles unit-based delivery for 94 records at its single street address, functioning as a mail processing and distribution point rather than a traditional neighborhood postal service. This arrangement is common in cities where large postal facilities receive their own ZIP designations separate from the surrounding residential delivery zones.

Street Name Patterns

Single Facility Location

The single street designation at Santa Ana Avenue confirms this is a concentrated postal facility rather than a distributed neighborhood service area. The presence of unit designations indicates the facility handles internal routing for multiple organizations or business suites at this address.

Nearby Areas

Fontana Southridge Village Empire Center South Park Bloomington

Business & Employment Statistics


ZIP Code 92331 supports both business and residential activity. According to the Business Census (2024), there are 10 business establishments, employing about 280 people with an annual payroll of $8,936,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:692Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:10Source: CBP
1st Quarter Payroll:$2,433,000Source: CBP
Annual Payroll:$8,936,000Source: CBP
# of Employees:280Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 92331 is located in San Bernardino County, California, within the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area (CBSA 40140) and California's 35th Congressional District. This Metro area has a population of 4,637,725 people, about 0.00% of whom live in ZIP Code 92331. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Riverside-San Bernardino-Ontario, CASource: Census
CBSA Number:40140Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:4,637,725Source: Census
MSA:Los Angeles-Riverside-Orange County, CASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:35Source: USPS
Congressional Land Area:168.88 sq miSource: Census
PMSA:Riverside-San Bernardino, CA PMSASource: Census
Intro Date:2006-05Source: ZIP-Codes.com
Place FIPS Code:0624680Source: Census
Place Name:Fontana city; CaliforniaSource: Census

Adjacent & Nearby ZIP Codes


92332 | | 92329

Schools in ZIP Code 92331


We could not locate which school district 92331 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Citrus High (Continuation) 10760 Cypress
Fontana, CA 92337
District: Fontana Unified School DistrictNearby
Jurupa Hills High 10700 Oleander Ave.
Fontana, CA 92337
District: Fontana Unified School DistrictNearby
Options For Youth-Acton 17216 Slover Ave. Ste. L-102
Fontana, CA 92337
District: UnknownNearby
Sycamore Hills Elementary 11036 Mahogany Dr.
Fontana, CA 92337
District: Colton Joint Unified School DistrictNearby
Cypress Elementary 9751 Cypress Ave.
Fontana, CA 92335
District: Fontana Unified School DistrictNearby
Mountain View Christian Preschool & Kindergarten 8833 Palmetto Ave
Fontana, CA 92335
District: Private SchoolNearby
Bloomington Christian School 9904 Bloomington Ave
Bloomington, CA 92316
District: Private SchoolNearby
Altus Academy Rialto 205 N Maple Ave
Rialto, CA 92377
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 92331


Salon Success Academy-Fontana 16803 Arrow Hwy
Fontana, CA 92335
Type: Post Secondary
Cet-Colton 1099 N. Pepper Ave
Colton, CA 92324
Type: Post Secondary
Spartan College Of Aeronautics And Technology 4130 Mennes Ave
Riverside, CA 92509-8716
Type: Post Secondary
California University Of Science And Medicine 1501 Violet Street
Colton, CA 92324-1603
Type: Post Secondary
United Education Institute-Ontario 4730 Ontario Mills Parkway
Ontario, CA 91764-5574
Type: Post Secondary
Carrington College-Ontario 4580 Ontario Mills Parkway #200
Ontario, CA 91764
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.

  1. U.S. Postal Service [Last Updated: 1/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 1/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 1/1/2026], https://nces.ed.gov