South Dakota · FIPS 46109 · County seat: Sisseton
Roberts County, SD GIS & Parcel Viewer
Parcel lookups for Roberts County start at the Roberts 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 Roberts County parcel map ↗
Opens 1stdistrict.org in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Roberts County planning-district WebGIS viewer |
|---|---|
| Type | County-run map |
| Website | 1stdistrict.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Sisseton |
| Population | 10,206 (2023 Census Bureau estimate) |
| Land area | 1,101 sq mi |
| FIPS code | 46109 |
Who runs this map
It is a county-level map: Roberts 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 Roberts County viewer
- Press the button above. This county's viewer runs on planning-district WebGIS; 43 counties in our directory use the same service.
- Find the search option and look up a property, or zoom in on the map.
- Click a lot to see its details.
- Check the toolbar for layers, measuring and printing.
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.
The county in brief
Roberts County had an estimated 10,206 residents in 2023, according to the Census Bureau. With about 1,101 square miles of land, that works out to roughly 9.3 people per square mile. By population it ranks 18th of 66 counties in South Dakota. Its county seat is Sisseton.
Nearby parcel maps
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Roberts County:
- Day County
- Grant County
- Marshall County
- Big Stone County, MN (state list)
- Richland County, ND
- Sargent County, ND
- Traverse County, MN
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.