South Dakota · FIPS 46025 · County seat: Clark
Clark County, SD GIS & Parcel Viewer
Looking for lot lines or a parcel number in Clark County, SD? The quickest route is the Clark County planning-district WebGIS viewer, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Clark County parcel map ↗
Opens 1stdistrict.org in a new tab. We link out and never embed or copy parcel data.
Clark County at a glance
| Official map | Clark County planning-district WebGIS viewer |
|---|---|
| Type | County-run map |
| Website | 1stdistrict.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Clark |
| Population | 3,948 (2023 Census Bureau estimate) |
| Land area | 958 sq mi |
| FIPS code | 46025 |
Where the parcel data comes from
Clark County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. As of our October 2026 test, anyone could open it without signing in or paying.
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.
Clark County by the numbers
Clark County had an estimated 3,948 residents in 2023, according to the Census Bureau. With about 958 square miles of land, that works out to roughly 4.1 people per square mile. That makes it number 41 out of 66 South Dakota counties by population. Its county seat is Clark.
Nearby parcel maps
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Clark County:
Before you rely on the lines
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.