South Dakota · FIPS 46027 · County seat: Vermillion
Clay County, SD GIS & Parcel Viewer
Parcel lookups for Clay County start at the Clay County Beacon site. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Clay County parcel map ↗
Opens beacon.schneidercorp.com in a new tab. We link out and never embed or copy parcel data.
Clay County at a glance
| Official map | Clay County Beacon site |
|---|---|
| Type | County-run map |
| Website | beacon.schneidercorp.com |
| Access | Map page asked for a sign-in when we checked (Oct 2026) |
| County seat | Vermillion |
| Population | 15,431 (2023 Census Bureau estimate) |
| Land area | 412 sq mi |
| FIPS code | 46027 |
Who runs this map
Clay County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. When we checked in October 2026, the map page on this site was limited to signed-in users. Other parts of the site may be open, and the county office can explain how access works.
How to use the Clay County viewer
- Press the button above to open Beacon, the Schneider Geospatial parcel platform this county uses. Accept the usage terms if asked.
- Search by address, owner or parcel number, or zoom in and click a lot.
- From a parcel's pop-up, open the full record to see values, sales or building data where the county shares them.
- Switch layers on or off to compare parcels with aerials, zoning or other overlays.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
About Clay County
Census Bureau figures put Clay County at about 15,431 people (2023 estimate) on roughly 412 square miles of land, which is about 37 residents per square mile. That makes it number 14 out of 66 South Dakota counties by population. The county seat is Vermillion.
Neighboring counties
Clay County shares a border with the counties below. Each link has its own official map:
A note on accuracy
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.