Blog · October 14, 2026 · South Dakota
Dewey County Township Map in South Dakota
Civil and survey townships in Dewey County, with the free map, starting near Isabel.
Main page: Dewey County, SD GIS & Parcel Viewer (official map link, Dewey County facts and neighboring maps).
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A Dewey County township map answers two different questions around Eagle Butte: which local township a property sits in, and where it falls on the survey grid. Here's how to see township lines for Dewey County, South Dakota, on free official maps.
Townships in Dewey County explained
The named townships on a county map are civil townships, and a parcel near Eagle Butte belongs to exactly one of them. Separately, South Dakota land near Isabel follows the federal survey grid, in which each township is about 36 square miles, divided into 36 numbered sections.
Search Dewey County parcels by owner, address or ID
Dewey County publishes its parcels on the Dewey County CAMAvision map, which runs on a CAMAvision parcel map, free to use for a lot in Isabel or a property near Timber Lake. Click any Dewey County parcel near Isabel to open its record: owner, parcel ID and assessed acreage are typically listed. Our Dewey County, SD page keeps the official link and the maps next door to Timber Lake in one place.
Dewey County at a glance
From Timber Lake, the seat of the county, the map spreads out to Eagle Butte and Isabel. Smaller places such as Green Grass, La Plant, and Lantry appear on the county map as little clusters of lots. Roughly 2,302 square miles of land and about 5,208 residents (2023 estimate) make up Dewey County. Beyond the town lots in Timber Lake, expect big rural parcels across the county. Landforms such as the Mountain Time Zone shape where roads and homesites fall in Dewey County.
Using the Dewey County parcel viewer as a Dewey County township map
On the Dewey County CAMAvision map, the parcel record for a property near Eagle Butte typically lists the township, and many viewers draw township lines as a layer. For the survey grid, look for section, township and range in the legal description on the Dewey County record.
Taxes, permits and township lines
Township lines near Isabel affect tax bills, local permits and voting precincts, so look it up well before you call about land near La Plant. When you compare tax bills for land near Eagle Butte, check if the parcels sit in the same township; levies can differ across the line.
How the survey grid is numbered
For land around Isabel, section 1 sits in the northeast corner of a survey township, and the numbering ends at 36 in the southeast corner. Aliquot descriptions for land near La Plant read backward: locate the southwest quarter, then its northeast quarter, on the county grid. Correction lines and irregular sections exist, so a section near Isabel may not be exactly 640 acres.
Deeds, districts and roads
Township names on a historical atlas of Dewey County can help when a family deed near Eagle Butte uses an old place name. Election maps, school districts and fire districts in Dewey County do not always follow township lines near Eagle Butte, so check each one separately.
Work and land use in Dewey County
County Business Patterns counted 96 business establishments in Dewey County for 2022, led by health care and social assistance, construction, and other services. Compared with national shares, Dewey County leans toward heavy and civil engineering construction, which shapes demand for land near Isabel.
Tracts that cross the Dewey County line
Near the edge of the county, check the next map over: Corson County, Haakon County, Potter County, Stanley County, and Sully County all border it. Our South Dakota page links each map neighboring Dewey County.
Quick answers for Dewey County
How do I locate what township a property in Dewey County is in?
Click the parcel on the Dewey County CAMAvision map; the Dewey County record typically names the township.
How many acres is a section in Dewey County?
Roughly 640 acres per section in Dewey County; real sections vary a bit since of survey corrections.
What do township and range mean on a deed near Isabel?
They locate land near Isabel on the federal survey grid; each survey township holds 36 sections of about 640 acres.
Does the Dewey County GIS map show township lines?
Many county viewers include a township or municipal boundary layer; check the layer list on the Dewey County map.
Does a Dewey County mailing town match the township?
Postal service areas around Isabel cross township lines, so the two often differ.
Open the official Dewey County, SD parcel map Dewey County 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.