Blog · October 14, 2026 · South Dakota
Bennett County Township Map (South Dakota)
Township lines, sections and parcel records for land around Allen.
Main page: Bennett County, SD GIS & Parcel Viewer (official map link, Bennett County facts and neighboring maps).
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A Bennett County township map search near Martin frequently starts with a tax bill or a deed that names a township. Below we sort out the kinds of townships in Bennett County and where to see each one.
What a Bennett County township map displays
Where civil townships exist in the county, they are named local units, and their duties near Allen depend on South Dakota law. Rural land in Bennett County sits on the Public Land Survey System, with blocks about 6 miles on a side; each holds 36 sections, so a farm near Harrington may span two.
Finding the tract on the Bennett County map
For land around Martin, open the District III regional GIS map (the District III planning district web GIS); it's the map Bennett County itself publishes. Use the search box for an address in Allen or a parcel number, or simply zoom in and click a property near Martin. Bookmark our Bennett County page too; it tracks the official South Dakota link if it moves and lists the maps around Allen.
How to look up a township in Bennett County
On the District III regional GIS map, the parcel record for a property near Martin typically lists the township, and many viewers draw township lines as a layer. Copy the section-township-range from the Bennett County parcel record to match it with a deed or an older atlas.
Tracts that cross the Bennett County line
A farm near the county line can carry separate records in Cherry County, NE, Jackson County, and Mellette County as well. Our South Dakota page links each map neighboring Bennett County.
How the survey grid is numbered
For land around Allen, section 1 sits in the northeast corner of a survey township, and the numbering ends at 36 in the southeast corner. Calls like 'NE 1/4 of the SW 1/4' near Blackpipe make sense in reverse: locate the southwest quarter, then its northeast quarter, on the county grid. Water, old surveys and corrections can leave odd-sized lots along section edges in Bennett County.
Old names and overlapping districts in Bennett County
Township names on a historical atlas of Bennett County can help when a family deed near Martin uses an old place name. Road maintenance questions near Harrington depend on if a road is a state, county or local road, so ask the county highway office if you're unsure.
Work and land use in Bennett County
In 2022 the Census Bureau tallied 57 establishments in Bennett County; retail trade topped the list. Building construction make up an above-average share of Bennett County businesses, a clue to how land around Allen gets used.
Bennett County at a glance
Martin is the seat of Bennett County and the hub for its land records. Unincorporated communities in the county, including Allen, Blackpipe, and Harrington, display up as small groups of parcels along the roads. Roughly 1,185 square miles of land and about 3,305 residents (2023 estimate) make up Bennett County. Beyond the town lots in Martin, expect big rural parcels across the county. Landforms such as the Mountain Time Zone shape where roads and homesites fall in Bennett County. With a founding date of 1909, Bennett County has long chains of title on some rural tracts.
Why the township matters
Township lines near Allen affect tax bills, local permits and voting precincts, so look it up well before you call about land near Harrington. Assessment and tax districts in Bennett County are frequently tied to the township, so two neighboring parcels near Allen can carry different rates.
Bennett County township map questions
How many acres is a section in Bennett County?
A standard section is about 640 acres, so a quarter section near Allen is about 160, though corrections make some smaller.
What is a survey township in Bennett County?
It's a Public Land Survey System block about 6 miles square with 36 sections, used to describe Bennett County land.
Does the Bennett County GIS map display township lines?
Many county viewers include a township or municipal boundary layer; check the layer list on the Bennett County map.
How do I track down what township a property in Bennett County is in?
Click the parcel on the District III regional GIS map; the Bennett County record typically names the township.
Does a Bennett County mailing town match the township?
Postal towns and township lines in Bennett County do not always match; the parcel record displays the township for taxes.
Open the official Bennett County, SD parcel map Bennett 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.