Union County
Union County, South Dakota: solar permitting grade B (score 41/100, Moderate Risk). Score has been stable over the last 12 months. Primary-source ordinance and board-vote data on SitePath.
Public summary
| Grade | B · Moderate Risk · Score 41/100 |
| Population | 17,285 |
| Solar ordinance | Active solar ordinance on the books |
| Active moratorium | None on record |
| Regulatory trajectory | Stable (no material ordinance movement) |
| 12-month score movement | Stable |
| Last verified | 2026-05-02 |
Developer outlook
Union County presents moderate permitting risk; conditions are generally workable for utility-scale solar with standard due-diligence preparation.
Local intel
No energy-related meetings, PSC dockets, or named opposition tracked for this county yet. See indexed calendar →
Nearby counties where SitePath is tracking energy activity: Sioux County (≈30 mi) · Lincoln County (≈31 mi) · Yankton County (≈39 mi)
Cities, towns & townships
Local governments in Union County. An incorporated city, town or village can adopt its own zoning, separate from the county’s.
- Alcester city
- Beresford citypartly in this county
- Elk Point city
- Jefferson city
- North Sioux City city
- Alcester township
- Big Sioux township
- Big Springs township
- Brule township
- Civil Bend township
- Elk Point township
- Emmet township
- Jefferson township
- Prairie township
- Sioux Valley township
- Spink township
- Virginia township
Source: U.S. Census Bureau, incorporated places and county subdivisions with an active government.
Nearby counties
- Clay County · ≈18 miB41—
- Plymouth County, IA · ≈23 miB37—
- Dixon County, NE · ≈26 miB40—
- Sioux County, IA · ≈30 miD55—
- Dakota County, NE · ≈31 miC43—
- Lincoln County · ≈31 miB35—
Compare these counties side-by-side →
Union County ranks #30 of 66 ranked South Dakota counties (1 = lowest permitting risk). Lowest-risk in South Dakota: Deuel County (A · 28), Walworth County (B · 30), Aurora County (B · 30). See all South Dakota county grades →
Want the full record?
Setback distances, board vote histories, source documents, and ordinance amendments are available in the full county profile. The map is free; a walkthrough shows you the underlying record.
About this score
Every U.S. county is scored 0–100 on solar permitting risk (lower is friendlier to development). The grade is a weighted composite of compliance stringency, market saturation, regulatory trajectory, and data uncertainty. Every figure traces back to a primary government document. Read the full methodology →
Related reading
SitePath Intelligence is a research platform. Data verified as of 2026-05-02. Scores update on a quarterly review cycle.