ZIP Code 58803 in Williston, ND

Data Last Updated: February 1, 2026
City:Williston, North Dakota
County:Williams County
Timezone:Central (GMT -06:00)
Local Time:7:56:52 AM
Population:No Population Data
Area Code:701
Classification:PO Box
Coordinates:48.1847, -103.6379
Quick Link:
https://www.zip-codes.com/zip-code/58803/zip-code-58803.asp

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58803 - Williston, ND

ZIP Code 58803, Williston

Small Town Unique ZIP No Census Data
LocationWilliams County, ND
Area0 sq mi Single Point
Delivery Points841 (143 businesses)
PO Boxes698
ZIP CreatedMay 2014
Enclosed InZIP Code 58801
Key Facts
  • This ZIP contains only PO Boxes, but street delivery is available in Williston through the neighboring 58801 ZIP code.
  • The post office maintains 698 PO Boxes serving both residential and business customers.
  • 143 of the PO Boxes are registered to businesses, making up about 20% of the facility's boxes.
  • W 9th Ave is the single street name associated with address records in this ZIP's database.
  • Williston is the county seat of Williams County in northwestern North Dakota.

Overview

ZIP 58803 is a PO Box facility serving Williston, North Dakota. The post office maintains 698 PO Boxes for residents and businesses who prefer centralized mail service. This isn't the only delivery option in Williston. Street delivery exists through the neighboring 58801 ZIP code, which handles carrier routes for the broader community.

Postal Services

The facility serves 143 businesses alongside residential customers. W 9th Ave accounts for the single street route associated with this ZIP's address records, though most mail flows through the PO Box system. Williston sits in Williams County in northwestern North Dakota, where the post office provides a hub for those who choose box service over home delivery.

Street Name Patterns

Single Street

With just one street name in the records, this ZIP functions primarily as a PO Box facility rather than a street delivery zone. The single entry for W 9th Ave likely represents the post office's own address or associated records.

Business & Employment Statistics


ZIP Code 58803 is designated for PO Box delivery only; business establishment and employment data are not available.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:847Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:0Source: CBP
1st Quarter Payroll:$0Source: CBP
Annual Payroll:$0Source: CBP
# of Employees:0Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 58803 is located in Williams County, North Dakota, within the Williston, ND Metropolitan Statistical Area (CBSA 48780). This Micro area has a population of 22,398 people, about 0.00% of whom live in ZIP Code 58803. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Williston, NDSource: Census
CBSA Number:48780Source: Census
CBSA Type:MicroSource: Census
CBSA Division:--Source: Census
CBSA Population:22,398Source: Census
MSA:Source: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:No DistrictsSource: USPS
Congressional Land Area: sq miSource: Census
PMSA:Source: Census
Intro Date:2014-05Source: ZIP-Codes.com
Place FIPS Code:3886220Source: Census
Place Name:Williston city; North DakotaSource: Census

Adjacent & Nearby ZIP Codes


58830 | | 58802

Schools in ZIP Code 58803


We could not locate which school district 58803 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.

Hagan Elementary School 2501 29th St
Williston, ND 58801
District: Williston Basin Public School District 7Nearby
Del Easton Alternative High School 2304 11th Ave W
Williston, ND 58801
District: Williston Basin Public School District 7Nearby
Wilkinson Elementary School 1200 9th Ave Nw
Williston, ND 58801
District: Williston Basin Public School District 7Nearby
Williston Middle School 501 14 St West
Williston, ND 58801
District: Williston Basin Public School District 7Nearby
Williston Middle School Central Campus 501 14th St W
Williston, ND 58801
District: Williston Basin Public School District 7Nearby
Williston Trinity Christian School 2419 9th Ave W
Williston, ND 58801
District: Private SchoolNearby
St Joseph's School 124 6th St W
Williston, ND 58801
District: Private SchoolNearby
Liberty Christian School 502 S Central Ave
Sidney, MT 59270
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 58803


Williston State College 1410 University Avenue
Williston, ND 58801
Type: Post Secondary
Nueta Hidatsa Sahnish College 301 College Drive
New Town, ND 58763
Type: Post Secondary
Fort Peck Community College 605 Indian Street
Poplar, MT 59255-0398
Type: Post Secondary
Dawson Community College 300 College Dr
Glendive, MT 59330
Type: Post Secondary
Dickinson State University 291 Campus Drive
Dickinson, ND 58601-4896
Type: Post Secondary
Columbia College - Minot AFB Minot Afb Education Center 156 Missile Ave
Minot AFB, ND 58705
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