ZIP Code 92138 in San Diego, CA

Data Last Updated: February 1, 2026
City:San Diego, California
County:San Diego County
Timezone:Pacific (GMT -08:00)
Local Time:10:16:20 PM
Population:No Population Data
Area Codes:619 / 858
Classification:PO Box
Coordinates:32.7154, -117.1565
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https://www.zip-codes.com/zip-code/92138/zip-code-92138.asp

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92138 San Diego, CA - Midway District Business Mail Hub

ZIP Code 92138, San Diego

Small Town Unique ZIP No Census Data
LocationSan Diego County, CA
Area0 sq mi Single Point
Delivery Points1,385 (364 businesses)
PO Boxes1,021
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 92110
Key Facts
  • This ZIP Code is classified as PO Box only, but it does provide street delivery to businesses along Midway Drive
  • The post office maintains 1,021 PO Boxes serving businesses throughout the surrounding area, nearly three times the local business delivery count
  • All 1,334 street delivery points are on a single street (Midway Drive) using unit designators for different businesses
  • This ZIP serves a commercial district with 11 business establishments employing 188 workers, not a residential area
  • The location is a point within the larger 92110 ZIP code area, functioning as a business mail hub for the Midway District

Commercial District Profile

ZIP Code 92138 serves San Diego's Midway District, a commercial and business area along the western edge of the city. This isn't a residential neighborhood. It's a business district with 11 establishments employing 188 workers, concentrated along a single commercial corridor.

Business Mail Services

The post office at this location maintains 1,021 PO Boxes and delivers to 364 business addresses. All street delivery goes to Midway Drive, where 1,334 delivery points use unit designators to identify individual businesses within commercial buildings. The high ratio of PO Boxes to business delivery points (nearly 3 to 1) shows that many businesses throughout the surrounding area use this post office as their mailing address, even if they don't have physical locations here.

Delivery Context

Despite being classified as a PO Box ZIP, this location does offer street delivery to businesses along Midway Drive. The ZIP has a point location rather than a defined territory, and it sits within the larger 92110 ZIP code area. Street delivery is available elsewhere in the community through neighboring standard ZIP codes. The Midway District location serves as a convenient business mail hub for Western San Diego, with nearby neighborhoods including Loma Portal and Old Town.

Street Name Patterns

Commercial Corridor Unit Addressing

All delivery points are on Midway Drive, reflecting a concentrated commercial district with unit-based addressing.

Nearby Areas

Western San Diego Midway District Loma Portal Old Town Naval Training Center

Business & Employment Statistics


ZIP Code 92138 supports both business and residential activity. According to the Business Census (2024), there are 12 business establishments, employing about 180 people with an annual payroll of $10,397,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:1,341Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:12Source: CBP
1st Quarter Payroll:$2,507,000Source: CBP
Annual Payroll:$10,397,000Source: CBP
# of Employees:180Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 92138 is located in San Diego County, California, within the San Diego-Chula Vista-Carlsbad, CA Metropolitan Statistical Area (CBSA 41740) and California's 50th and 52nd Congressional Districts. This Metro area has a population of 3,282,782 people, about 0.00% of whom live in ZIP Code 92138. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:San Diego-Chula Vista-Carlsbad, CASource: Census
CBSA Number:41740Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:3,282,782Source: Census
MSA:San Diego, CA MSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:50,52Source: USPS
Congressional Land Area:2787.35, 267 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:0666000Source: Census
Place Name:San Diego city; CaliforniaSource: Census

Adjacent & Nearby ZIP Codes


92139 | | 92137

Schools in ZIP Code 92138


We could not locate which school district 92138 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.

Urban Discovery Academy Charter 840 14th St.
San Diego, CA 92101
District: UnknownNearby
East Village Middle College High 1313 Park Blvd.
San Diego, CA 92101
District: San Diego City Unified School DistrictNearby
San Diego International Studies 1405 Park Blvd.
San Diego, CA 92101
District: San Diego City Unified School DistrictNearby
San Diego Business/Leadership 1405 Park Blvd.
San Diego, CA 92101
District: San Diego City Unified School DistrictNearby
San Diego Science And Technology 1405 Park Blvd.
San Diego, CA 92101
District: San Diego City Unified School DistrictNearby
Our Lady's School 650 24th St
San Diego, CA 92102
District: Private SchoolNearby
Montessori School Of San Diego 1323 W Spruce St
San Diego, CA 92103
District: Private SchoolNearby
Community Transition Academy 625 Pennsylvania Ave
San Diego, CA 92103
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 92138


Thomas Jefferson School Of Law 701 B Street - Suite 110
San Diego, CA 92101
Type: Post Secondary
Newschool Of Architecture And Design 1249 F St
San Diego, CA 92101
Type: Post Secondary
San Diego City College 1313 Park Boulevard
San Diego, CA 92101-4787
Type: Post Secondary
Associated Barber College Of San Diego 1333 5th Avenue
San Diego, CA 92101-4210
Type: Post Secondary
Paul Mitchell The School-San Diego 410 A Street
San Diego, CA 92101
Type: Post Secondary
San Diego Global Knowledge University 1095 K Street, Suite B
San Diego, CA 92101-7446
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 February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], 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: 2/1/2026], https://nces.ed.gov