ZIP Code 93443 in Morro Bay, CA

Data Last Updated: February 1, 2026
City:Morro Bay, California
County:San Luis Obispo County
Timezone:Pacific (GMT -08:00)
Local Time:9:47:13 AM
Population:No Population Data
Area Codes:805 / 820
Classification:PO Box
Coordinates:35.3655, -120.8487
Quick Link:
https://www.zip-codes.com/zip-code/93443/zip-code-93443.asp

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93443 Morro Bay, CA - Post Office PO Box Services

ZIP Code 93443, Morro Bay

Small Town Unique ZIP No Census Data
LocationSan Luis Obispo County, CA
Area0 sq mi Single Point
Delivery Points777 (236 businesses)
PO Boxes541
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 93442
Key Facts
  • This ZIP code covers only the Morro Bay Post Office building on Napa Avenue, not a geographic delivery area.
  • The 541 PO Boxes serve residents and businesses who prefer mailbox pickup over home delivery.
  • Street delivery is available through ZIP code 93442, which surrounds and contains this post office location.
  • 236 local businesses use this post office for their mail services.
  • Using a PO Box here is optional since Morro Bay has full carrier delivery through its main ZIP code.

Overview

ZIP code 93443 serves the Morro Bay Post Office on Napa Avenue in San Luis Obispo County, California. This isn't a geographic territory but rather a point location for PO Box services at the post office facility. The 541 PO Boxes here provide an alternative to street delivery, which is available through the neighboring ZIP code 93442. Morro Bay's main ZIP handles residential and business addresses throughout the coastal city, while 93443 exists specifically for PO Box customers.

PO Box Services

The post office also handles mail for 236 local businesses. With only one street address on record (Napa Avenue, the post office location itself), this ZIP functions purely as a mail collection point. Residents and businesses choose PO Boxes here for convenience, privacy, or because they prefer picking up mail at the post office. Since Morro Bay has full street delivery through 93442, there's no requirement to use a PO Box. It's simply an option for those who want one in this popular Central Coast community.

Street Name Patterns

Post Office Location

The only street address is Napa Avenue, the location of the Morro Bay Post Office.

Business & Employment Statistics


ZIP Code 93443 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 9 people with an annual payroll of $340,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:1,537Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:5Source: CBP
1st Quarter Payroll:$89,000Source: CBP
Annual Payroll:$340,000Source: CBP
# of Employees:9Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 93443 is located in San Luis Obispo County, California, within the San Luis Obispo-Paso Robles, CA Metropolitan Statistical Area (CBSA 42020) and California's 24th Congressional District. This Metro area has a population of 269,637 people, about 0.00% of whom live in ZIP Code 93443. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:San Luis Obispo-Paso Robles, CASource: Census
CBSA Number:42020Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:269,637Source: Census
MSA:San Luis Obispo-Atascadero-Paso Robles, CA MSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:24Source: USPS
Congressional Land Area:6883.35 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:0649362Source: Census
Place Name:Morro Bay city; CaliforniaSource: Census

Adjacent & Nearby ZIP Codes


93444 | | 93442

Schools in ZIP Code 93443


We could not locate which school district 93443 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.

Morro Bay High 235 Atascadero Rd.
Morro Bay, CA 93442
District: San Luis Coastal Unified School DistrictNearby
Del Mar Elementary 501 Sequoia St.
Morro Bay, CA 93442
District: San Luis Coastal Unified School DistrictNearby
Baywood Elementary 1330 Ninth St.
Los Osos, CA 93402
District: San Luis Coastal Unified School DistrictNearby
Los Osos Middle 1555 El Moro St.
Los Osos, CA 93402
District: San Luis Coastal Unified School DistrictNearby
Monarch Grove Elementary 348 Los Osos Valley Rd.
Los Osos, CA 93402
District: San Luis Coastal Unified School DistrictNearby
Wishing Well School 880 Manzanita Dr
Los Osos, CA 93402
District: Private SchoolNearby
Old Mission School 761 Broad St
San Luis Obispo, CA 93401
District: Private SchoolNearby
Mission College Prep Catholic High School 682 Palm St
San Luis Obispo, CA 93401
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 93443


Cuesta College Highway 1
San Luis Obispo, CA 93403-8106
Type: Post Secondary
Columbia College - San Luis Obispo Building 2700 A At Cuesta College
San Luis Obispo, CA 93403-8106
Type: Post Secondary
California Polytechnic State University-San Luis Obispo 1 Grand Ave.
San Luis Obispo, CA 93407
Type: Post Secondary
Laurus College 81 Higuera St Ste 110
San Luis Obispo, CA 93401
Type: Post Secondary
San Joaquin Valley College-Atascadero 8845 El Camino Real
Atascadero, CA 93422-5333
Type: Post Secondary
Central California School Of Continuing Education 3195 Mcmillan Ste F
San Luis Obispo, CA 93401
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