South Dakota · FIPS 46085 · County seat: Kennebec
Lyman County, SD GIS & Parcel Viewer
Parcel lookups for Lyman County start at the Lyman County planning-district WebGIS viewer. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Lyman 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 | Lyman County planning-district WebGIS viewer |
|---|---|
| Type | County-run map |
| Website | gis.districtiii.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Kennebec |
| Population | 3,705 (2023 Census Bureau estimate) |
| Land area | 1,642 sq mi |
| FIPS code | 46085 |
About the official source
This map is published by or for Lyman County itself, so it reflects the local parcel layer rather than a third-party copy. 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.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
About Lyman County
The U.S. Census Bureau estimated Lyman County's population at 3,705 in 2023, spread over about 1,642 square miles of land, or roughly 2.3 people per square mile. That makes it number 43 out of 66 South Dakota counties by population. Kennebec serves as the county seat.
Nearby parcel maps
Parcels close to the edge of Lyman County can fall in the next county over. Neighboring counties:
- Brule County
- Buffalo County
- Charles Mix County
- Gregory County
- Hughes County
- Hyde County (state list)
- Jones County
- Mellette County
- Stanley County
- Tripp County
A note on accuracy
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.