Blog · October 14, 2026 · South Dakota
Reading the Jerauld County Flood Map for a parcel
The zone on FEMA's map affects insurance, building and resale near Spring Valley Colony.
Main page: Jerauld County, SD GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near Spring Valley Colony, pull up the Jerauld County flood map: a mapped flood zone changes insurance, permits and resale. Covered here for Jerauld County: finding the address on FEMA's map, reading the zone codes, and pairing it with the District III regional GIS map.
Getting started with the Jerauld County flood map
For a more interactive look, try the National Flood Hazard Layer viewer, which draws the zones over aerial imagery, which applies near Spring Valley Colony as much as anywhere. Rural land near Crow Lake with no street number is still easy to locate: zoom in from the nearest road and click the spot.
Opening the official parcel viewer
Begin with the District III regional GIS map; it covers every assessed parcel around Alpena and Wessington Springs. When a rural tract has no street number, follow the nearest road on the aerial and click the parcel itself, for land near Wessington Springs included. In and around Crow Lake, save the parcel ID before closing the panel; each office in the county asks for it first.
What to request from a seller
If the land is near Crow Lake, request for any Elevation Certificate before closing; getting a quote early avoids surprises.
Reading A, AE and X
For a parcel near Wessington Springs, A and V zones are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. If you're looking near Alpena, shaded Zone X marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, means minimal mapped risk.
Land on the county line
Jerauld County meets Aurora County, Beadle County, Brule County, Buffalo County, and Hand County, and each of those keeps its own parcel map. Ground near Lane that runs to the line may show up across two assessors' files, so open the adjacent map too. On ground around Lane, our state page lists each neighboring county map across South Dakota.
Using it on a phone
Most viewers work in a phone browser, useful out on a road near Spring Valley Colony, so load it before you lose signal. A screenshot of the parcel near Lane with its ID keeps working without signal.
Matching the zone to the lot lines
FEMA's map shows zones but not ownership, so check the District III regional GIS map too to see exactly which lot near Crow Lake you're looking at.
Lenders and permits
If a building sits in a Special Flood Hazard Area and the loan is federally backed or regulated, the lender will require flood insurance where the community participates in the National Flood Insurance Program, and that holds around Lane too. New construction in a floodplain near Crow Lake can trigger elevation rules; call the permitting office before you plan.
Places you'll see on the map
Wessington Springs holds the county offices, which is where the courthouse records live. Other places on the map include Alpena, Lane, Spring Valley Colony, and Crow Lake. Around 1,660 people live in Jerauld County (Census estimate, 2023) on roughly 526 square miles. Jerauld County was organized in 1883, and some chains of title near Spring Valley Colony are long.
Low spots and local drainage
Low-lying fields near Alpena aren't always studied in detail, so look for water marks and debris lines. Marshy spots near Spring Valley Colony can limit building too; the National Wetlands Inventory mapper shows mapped wetlands.
Legal descriptions in South Dakota
South Dakota follows the Public Land Survey System, so deeds around Alpena reference sections and townships. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though real sections near Spring Valley Colony vary in size. Write down the legal description for the tract near Wessington Springs for any title or survey request.
The paper trail behind a parcel
Before you sign anything, get the recorded deed through the Register of Deeds; the viewer just points to it, for land near Crow Lake included. For a parcel near Spring Valley Colony, have ready the instrument number from the tax record to skip a name search.
Which office to call
Anything recorded against property around Crow Lake come from the Register of Deeds, sometimes only in person. Zoning, permits and septic questions near Wessington Springs go to planning, building or health offices, town or county, depending on location.
Jerauld County: common questions
Can I see flood zones on the District III regional GIS map near Crow Lake?
Near Spring Valley Colony, some county viewers include a FEMA flood layer, but FEMA's own map is the official source.
What is a base flood elevation near Lane?
Short answer: a BFE near Lane tells builders how high the lowest floor should be; surveyors near Crow Lake use it often.
What is the difference between Zone A and AE near Spring Valley Colony?
Good question; both are high-risk zones, but only AE has a base flood elevation, so builders near Crow Lake design to that elevation.
What is a LOMA around Wessington Springs?
Good question; FEMA's LOMA process is the usual route when a building near Alpena sits above the base flood elevation; a surveyor's elevation data supports it.
Where do I find the parcel number for land near Spring Valley Colony?
It's the number the Director of Equalization uses to track a tract near Alpena, and it's on the record panel and tax bills.
Open the official Jerauld County, SD parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.