Check land in South Dakota before you buy

Flood zone, slope, soils, wetlands, roads, power and wildfire for any point in South Dakota, written up in plain English with the source next to every value. Check the Land, powered by Isopleth.

Check a location in South Dakota See a sample report

What the $29 report covers in South Dakota

You drop a pin or enter an address anywhere in South Dakota. The screen asks about 75 questions of public datasets at that point and within stated search radii, then explains each answer and names its source.

Hazards: FEMA flood zone and floodplain, wildfire, tornado and hail frequency, landslide, seismic and wind design values
Terrain & soils: slope, elevation, soil drainage and farmland class
Infrastructure & access: nearest roads, high-voltage lines, substations and gas pipelines, water and sewer service, fire stations, hospitals and schools
Environment: wetlands and streams, protected land and critical habitat, Superfund, brownfield and leaking-tank sites, dams

The free preview checks coverage first: how many checks returned a value at your point and which sources had nothing there. If too much core data is missing, it says so rather than selling you a thin report. How it works.

Real example values in South Dakota

These are values the Isopleth API (the data engine behind the report) returned on 2026-10-29 at the Census Bureau's interior point of South Dakota's 3 largest counties by land area. They show what the report reads, not what your land has: values change within a few hundred feet, so check your own pin.

Check	Meade County	Perkins County	Pennington County
Hazards
FEMA flood zone	D	no data	X
Inside a mapped floodplain	No	No	No
Wildfire frequency (tract average)	0.0039 a year	0.0012 a year	0.0028 a year
Tornado frequency (tract average)	0.53 a year	0.45 a year	0.34 a year
Hail frequency (tract average)	4.9 a year	2.7 a year	5.4 a year
Terrain & soils
Elevation	3,046 ft (929 m)	2,676 ft (816 m)	3,032 ft (924 m)
Slope	2.7°	2.7°	2.7°
Soil drainage	Well drained	Well drained	Well drained
Farmland class	Statewide importance	Prime	Prime if conditions met
Infrastructure & access
Nearest major road	3.1 mi (4.9 km)	3.3 mi (5.3 km)	3.7 mi (6.0 km)
Nearest high-voltage transmission line	no data	no data	376 m (1,232 ft)
Nearest substation	9.9 mi (15.9 km)	10.0 mi (16.0 km)	4.8 mi (7.7 km)
Nearest interstate gas pipeline	40.2 mi (64.7 km)	60.5 mi (97.4 km)	14.5 mi (23.3 km)
In a public water service area	No	Yes	No
Nearest fire station	no data	2.8 mi (4.6 km)	12.1 mi (19.4 km)
Nearest school	4.0 mi (6.4 km)	2.8 mi (4.5 km)	6.4 mi (10.3 km)
Environment
On a mapped wetland	No	No	No
Nearest mapped wetland	145 m (476 ft)	176 m (579 ft)	116 m (380 ft)
On protected land	No	Yes	No

Frequencies are FEMA National Risk Index annual averages for the Census tract. "No data" means that dataset had nothing at that point, and the report would list it as a gap.

What it can't tell you

It doesn't look at the whole parcel, its boundaries, title, easements, zoning or permits.
It isn't a survey, appraisal, elevation certificate, soil or perc test, or Phase I environmental site assessment.
It can't see local distribution power lines, driveways, legal access, wells or mineral rights.
Maps lag behind the ground, and distances are straight-line, not driving distance.

Common questions

Does Check the Land work in South Dakota?

Yes. The screen runs at any point in South Dakota that you choose by address or coordinates. Coverage varies from place to place, so the free preview shows which checks returned data at your point before you pay.

Is the FEMA flood map available everywhere in South Dakota?

Not everywhere. A FEMA flood zone came back at 2 of our 3 sample points in South Dakota. Where there is no digital FEMA map, the report says the flood zone is unknown rather than calling it safe, and the preview shows this before you pay.

What does the $29 report check in South Dakota?

About 75 checks at your point and set search radii: flood zone and floodplain, slope, elevation and soils, wetlands and streams, protected land and critical habitat, wildfire, tornado and hail frequency, the nearest roads (one came back at all 3 of our sample points), transmission lines, substations and gas pipelines, water and sewer service areas, nearby fire stations, hospitals and schools, and EPA-listed sites such as Superfund and leaking tanks.

Is this a survey, title search or Phase I?

No. It is a preliminary screen of mapped public data at one point. It does not look at the whole parcel, its boundaries, title, easements, zoning or permits, and it is not a survey, appraisal, soil or perc test or Phase I environmental site assessment.

How much does it cost?

The preview is free. The full report is $29 per location (initial test price), one payment with no subscription.

Looking at land in South Dakota?

Run the free preview first. It shows what data exists at your point. The full report is $29 (initial test price). Questions: [email protected].

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