← Back to United States
South Dakota
Select a county with available development opportunities.
Active site data
Not yet mapped

Union County, South Dakota

Properties Available
7 Properties Available
Top-Rated Sites
7 top-rated sites
Total Properties
7
Total Acreage
963+ acres
⚙️
Filter Site Opportunities Narrow the list to match your project requirements.
🎯 Refine Results
⭐ Site Opportunities
Site #28709887
Union County, SD
Power, Substation & Fiber Proximity Scores
Power EXCELLENTSubstation GOODFiber GOOD
Acreage
23
Slope Deg.
0
MLS Number
28709887
Transmission Line (69.0 kV)
0.14 mi
Substation (SUB167847 · 69.0 kV)
1.22 mi
Fiber (Heartland Telecommunications Company of Iowa)
0.43 mi
Verified 2 days ago • Nov 2, 2026 9:32 AM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.

Site #26561739
Union County, SD
Power, Substation & Fiber Proximity Scores
Power EXCELLENTSubstation GOODFiber GOOD
Acreage
35
Slope Deg.
0
MLS Number
26561739
Transmission Line (69.0 kV)
0.13 mi
Substation (SUB176303)
1.90 mi
Fiber (Long Lines Metro, LLC)
0.29 mi
Verified 2 days ago • Nov 2, 2026 9:32 AM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.

Site #26568062
Union County, SD
Power, Substation & Fiber Proximity Scores
Power EXCELLENTSubstation FAIRFiber GOOD
Acreage
35
Slope Deg.
5
MLS Number
26568062
Transmission Line (69.0 kV)
0.45 mi
Substation (TAP161874 · 69.0 kV)
3.01 mi
Fiber (Heartland Telecommunications Company of Iowa)
0.58 mi
Verified 2 days ago • Nov 2, 2026 9:32 AM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.

Site #9811503058
Union County, SD
Power, Substation & Fiber Proximity Scores
Power EXCELLENTSubstation FAIRFiber EXCELLENT
Acreage
79
Slope Deg.
1
MLS Number
9811503058
Transmission Line (345.0 kV)
0.38 mi
Substation (SUB167847 · 69.0 kV)
3.64 mi
Fiber (Heartland Telecommunications Company of Iowa)
0.00 mi
Verified 15 days ago • Oct 19, 2026 7:24 PM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.

Site #29122123
Union County, SD
Power, Substation & Fiber Proximity Scores
Power GOODSubstation GOODFiber GOOD
Acreage
197
Slope Deg.
6
MLS Number
29122123
Transmission Line (345.0 kV)
1.22 mi
Substation (TAP161872 · 69.0 kV)
2.04 mi
Fiber (Heartland Telecommunications Company of Iowa)
0.49 mi
Verified 2 days ago • Nov 2, 2026 9:32 AM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.

Site #29266428
Union County, SD
Power, Substation & Fiber Proximity Scores
Power EXCELLENTSubstation EXCELLENTFiber EXCELLENT
Acreage
218
Slope Deg.
4
MLS Number
29266428
Transmission Line (345.0 kV)
0.41 mi
Substation (SUB159932 · 69.0 kV)
0.43 mi
Fiber (Bluepeak)
0.00 mi
Verified 2 days ago • Nov 2, 2026 9:32 AM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.

Site #28614074
Union County, SD
Power, Substation & Fiber Proximity Scores
Power GOODSubstation FAIRFiber GOOD
Acreage
376
Slope Deg.
4
MLS Number
28614074
Transmission Line (115.0 kV)
1.88 mi
Substation (SUB161873 · 69.0 kV)
4.13 mi
Fiber (Bluepeak)
0.46 mi
Verified 2 days ago • Nov 2, 2026 9:32 AM

🔒 Unlock Full Site Intelligence

Subscribe to view transmission distances, substation ratings, and full map reports.