Top 6 Car Wash Chains in Sioux City
Sioux City, IA-NE-SD
Data updated · May 22, 2026
The largest car wash operators in the Sioux City metro by location count, drawn from 73 car washes across the Sioux City, IA-NE-SD CBSA. 6 chain operators total alongside 57 independent or single-location sites.
- 🥇1
Silverstar Car Wash
6 sites in Sioux City · 3,883 reviews · 4.57 - 🥈2
Power Wash USA
5 sites in Sioux City · 603 reviews - 🥉3
Kwik Trip
2 sites in Sioux City · 68 reviews - 4
Super Wash
1 site in Sioux City · 107 reviews - 5
Omaha Tank Wash
1 site in Sioux City · 33 reviews - Full profile6
Mid America Washout
1 site in Sioux City · 164 reviews
The Sioux City car wash chain landscape is consolidated around a top-3 oligopoly (Silverstar Car Wash, Power Wash USA, Kwik Trip) that together control 81.3% of chain-affiliated locations. Across the full metro, 78.1% of all car washes operate as independents or single-location operators (57 of 73 sites) — an independent-heavy market where chains haven't pushed mom-and-pop competition out.
About the Sioux City car wash market
Which car wash chain has the most locations in Sioux City?
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What are the top 6 car wash chains in Sioux City?
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About this ranking
Chains ranked by total location count inside the Sioux City, IA-NE-SD CBSA, computed from a point-in-polygon test against the official US Census county boundaries (TIGER/Line, 2024). Each chain is identified via the WashIndex per-location chain assignment.
See the full Sioux City car wash market analysis for every car wash, format mix, customer-experience signals, and county breakdown.