South Dakota · FIPS 46095 · County seat: White River
Mellette County, SD GIS & Parcel Viewer
Use this page to reach the official county parcel map for Mellette County, South Dakota. The button below opens the Mellette County planning-district WebGIS viewer in a new tab, so you can look up parcels by address, owner or parcel number on the source site itself.
Open the Mellette County parcel map ↗
Opens gis.districtiii.org in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Mellette County planning-district WebGIS viewer |
|---|---|
| Type | County-run map |
| Website | gis.districtiii.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | White River |
| Population | 1,851 (2023 Census Bureau estimate) |
| Land area | 1,307 sq mi |
| FIPS code | 46095 |
Who runs this map
Mellette County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. Our October 2026 check found the map open to the public, with no account or payment needed.
Finding a property on this map
- Open the official link; the map is hosted on planning-district WebGIS, a vendor platform used by 43 counties in our directory.
- Accept any disclaimer, then use the search tool to find a street address, owner or parcel ID.
- Click a parcel to view its attributes.
- Use the layer or basemap controls to add aerials and other layers where the county provides them.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
About Mellette County
Census Bureau figures put Mellette County at about 1,851 people (2023 estimate) on roughly 1,307 square miles of land, which is about 1.4 residents per square mile. That makes it number 60 out of 66 South Dakota counties by population. The county seat is White River.
Nearby parcel maps
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Mellette County:
Before you rely on the lines
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.