elect.info
DATA COVERAGE not externally verified tier raw_mirror vintage 2026-08-27 coverage 1980-2024 · 2026 Midterms in flight! money live · figures computing (best estimates)
Dollar figures are still computing and reflect best estimates while the corrected-financial reconciliation completes. Relationships, counts, and dates are final.

Union County

County · SD · 46127

SD — state profile

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Geography intelligence — demographics, elections and money at a glance. Metrics shown are those available at this level; more light up as coverage and the money reconciliation land.

Geography

Land area (sq mi) 461

Elections & registration

Turnout 2022 (% of registered) 48.8%
Registered voters 11,177

Demographics (CVAP)

Total population 16,854
Citizen voting-age pop (CVAP) 12,776
CVAP ÷ population 75.8%
White CVAP 92.6%
Black CVAP 1.3%
Hispanic CVAP 3.5%
Asian CVAP 1.2%
Non-white CVAP 7.4%