Mississippi · FIPS 28127 · County seat: Mendenhall
Simpson County, MS GIS & Parcel Viewer
Simpson County, Mississippi parcel data lives on the Simpson County ArcGIS parcel map. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Simpson County parcel map ↗
Opens gis.cmpdd.org in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Simpson County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | gis.cmpdd.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Mendenhall |
| Population | 25,715 (2023 Census Bureau estimate) |
| Land area | 589 sq mi |
| FIPS code | 28127 |
About the official source
This map is published by or for Simpson County itself, so it reflects the local parcel layer rather than a third-party copy. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Simpson County viewer
- Click the button above and wait for the Web AppBuilder viewer to load. Some counties show a terms screen first.
- Search by street address, owner or parcel ID if the search box offers those options.
- Click a lot on the map to read its attributes.
- Turn on aerial imagery from the basemap tool and use the layer list to add things like zoning or flood zones when they're published.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
About Simpson County
The U.S. Census Bureau estimated Simpson County's population at 25,715 in 2023, spread over about 589 square miles of land, or roughly 44 people per square mile. Among Mississippi's 82 counties, it is the 35th largest by population. The county seat is Mendenhall.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Simpson County:
- Copiah County
- Covington County
- Hinds County
- Jefferson Davis County
- Lawrence County
- Rankin County
- Smith County
Maps vs. surveys
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.