Harrison County, TX ZIP Codes & Directory
Complete postal guide for Harrison County, Texas. Featuring the official county seat of Marshall, largest municipality Marshall, and serving 2 incorporated municipal entities.
Municipalities Located in Harrison County
Incorporated Cities, Towns, and Villages
Active USPS Postal Codes in Harrison County
Standard delivery zones and geographic service boundaries
Frequently Asked Questions About Harrison County, TX
What is the county seat and largest city in Harrison County? ▾
The official county seat of Harrison County is Marshall, and its largest incorporated municipality by population is Marshall.
How many cities, towns, and villages are in Harrison County? ▾
Harrison County encompasses 2 incorporated municipal entities, including 2 cities, 0 towns, and 0 villages.
What is the total population and land area of Harrison County? ▾
According to official U.S. Census Bureau data, Harrison County has a population of approximately 68,839 residents and spans an area of 899 square miles.
How many postal codes operate in Harrison County? ▾
There are 1 active USPS postal codes serving addresses within Harrison County, Texas.