Mississippi · FIPS 28003 · County seat: Corinth
Alcorn County, MS GIS & Parcel Viewer
Parcel lookups for Alcorn County start at the Alcorn County ArcGIS parcel map. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Alcorn County parcel map ↗
Opens alcornms.maps.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Alcorn County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | alcornms.maps.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Corinth |
| Population | 34,135 (2023 Census Bureau estimate) |
| Land area | 400 sq mi |
| FIPS code | 28003 |
About the official source
It is a county-level map: Alcorn County or the company it hires keeps the parcel layer up to date. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Alcorn County viewer
- Open the official link. The viewer is built with ArcGIS Web AppBuilder; if a disclaimer pops up, accept it to continue.
- Use the search widget, usually in the upper left, to find a street address or parcel ID.
- Click a parcel to open its info window.
- The widget bar holds extras such as the layer list, basemap switcher, measure and print tools.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
Alcorn County by the numbers
Alcorn County had an estimated 34,135 residents in 2023, according to the Census Bureau. With about 400 square miles of land, that works out to roughly 85 people per square mile. By population it ranks 21st of 82 counties in Mississippi. Its county seat is Corinth.
Nearby parcel maps
Alcorn County shares a border with the counties below. Each link has its own official map:
A note on accuracy
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.