The state of South Dakota keeps a log of every well ever drilled. We read all 56,772 of them.
South Dakota well logs, made useful.
Every well completion report DANR holds — how deep it went, who owns it and who drilled it, with the driller's original scanned report — brought together around one location, instead of one record at a time.
✓ Verified against SD DANR · 2026-08-24
173 ftmedian well depth statewide
5,362wells drilled since 2016
1,088 ft9 in 10 wells are shallower than this
56,770wells you can look up by location
What you can answer here
- How deep will my well need to be? Median and range of actual drilled depths near you — not national averages.
- What will it cost? Local median depth × published per-foot rates, with the math shown.
- Will it produce enough water? Yields from pump tests on nearby wells.
- Who drills around here? The drillers who actually filed recent well logs in your county.
These are SD DANR records
Every figure here comes from the South Dakota DANR well completion report database (NR68) — the state's official well-log repository. We index those same records by location so you can start from an address, and every well links back to its original filed log.
Buying property with a well — or land you'd need to drill?
See every recorded well near any South Dakota address: depths, water levels, yields, and links to the original driller's logs — all in one report.
Get the property report — $29Driller, agent, or inspector? Unlimited & white-label plans →
Well data by county
Aurora County 591 wells · median 320 ft Beadle County 2,733 wells · median 780 ft Bennett County 633 wells · median 140 ft Bon Homme County 555 wells · median 230 ft Brookings County 926 wells · median 49 ft Brown County 2,925 wells · median 946 ft Brule County 566 wells · median 900 ft Buffalo County 273 wells · median 860 ft Butte County 676 wells · median 260 ft Campbell County 386 wells · median 104 ft Charles Mix County 454 wells · median 425 ft Clark County 532 wells · median 153 ft Clay County 548 wells · median 110 ft Codington County 1,045 wells · median 46 ft Corson County 849 wells · median 160 ft Custer County 2,675 wells · median 210 ft Davison County 817 wells · median 115 ft Day County 575 wells · median 125 ft Deuel County 201 wells · median 64 ft Dewey County 487 wells · median 90 ft Douglas County 204 wells · median 366 ft Edmunds County 786 wells · median 1,200 ft Fall River County 957 wells · median 200 ft Faulk County 1,004 wells · median 1,115 ft Grant County 657 wells · median 80 ft Gregory County 334 wells · median 72 ft Haakon County 244 wells · median 56 ft Hamlin County 502 wells · median 53 ft Hand County 1,286 wells · median 1,014 ft Hanson County 203 wells · median 184 ft Harding County 818 wells · median 196 ft Hughes County 572 wells · median 70 ft Hutchinson County 753 wells · median 200 ft Hyde County 306 wells · median 285 ft Jackson County 301 wells · median 100 ft Jerauld County 676 wells · median 169 ft Jones County 141 wells · median 2,005 ft Kingsbury County 735 wells · median 892 ft Lake County 273 wells · median 57 ft Lawrence County 2,889 wells · median 220 ft Lincoln County 460 wells · median 142 ft Lyman County 526 wells · median 1,203 ft Marshall County 766 wells · median 400 ft Mccook County 259 wells · median 180 ft Mcpherson County 660 wells · median 180 ft Meade County 2,414 wells · median 165 ft Mellette County 176 wells · median 60 ft Miner County 653 wells · median 165 ft Minnehaha County 1,439 wells · median 30 ft Moody County 364 wells · median 33 ft Oglala Lakota County 92 wells · median 90 ft Pennington County 4,258 wells · median 115 ft Perkins County 1,204 wells · median 210 ft Potter County 343 wells · median 68 ft Roberts County 1,210 wells · median 98 ft Sanborn County 1,199 wells · median 200 ft Spink County 2,720 wells · median 910 ft Stanley County 268 wells · median 1,249 ft Sully County 413 wells · median 80 ft Todd County 990 wells · median 160 ft Tripp County 598 wells · median 100 ft Turner County 673 wells · median 106 ft Union County 852 wells · median 115 ft Walworth County 378 wells · median 67 ft Yankton County 809 wells · median 123 ft Ziebach County 390 wells · median 155 ft