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Best Of · CA

The 5 Best Car Washes in Ontario, CA

The highest-rated car wash in Ontario, CA is Anthem Express Car Wash at 4.9★ across 1,790 Google reviews, followed by PrimeWash Express (4.8★) and Voltage Car Wash (4.5★). Rankings cover Ontario, CA car washes with at least 30 Google reviews.

Part of the Riverside-San Bernardino-Ontario, CA car wash market.

Data updated · September 26, 2026

Ontario, CA has a clear top-rated car wash. Anthem Express Car Wash carries 4.9★ across 1,790 Google reviews — a 0.50-star gap above the next ranked locations. The full Ontario market analysis at the bottom of the page shows where each ranked operator sits in the broader 19-location landscape.

  1. 🥇1

    Anthem Express Car Wash

    2390 S Archibald Ave, Ontario, CA 91761

    4.9
    1,790 reviews
    Express Tunnel Chain · Anthem Express Wash $67K AGI ZIP
  2. 🥈2

    PrimeWash Express

    1191 E Holt Blvd, Ontario, CA 91761

    4.8
    1,558 reviews
    Express Tunnel Chain · PrimeWash Express $67K AGI ZIP
  3. 🥉3

    Voltage Car Wash

    1253 E Holt Blvd, Ontario, CA 91761

    4.5
    101 reviews
    Full Service $67K AGI ZIP
  4. 4

    Fast5Xpress Car Wash Ontario - S Grove Ave

    2345 S Grove Ave, Ontario, CA 91761

    4.4
    534 reviews
    Express Tunnel Chain · Fast5Xpress Car Wash $67K AGI ZIP
  5. 5

    76

    1850 E Holt Blvd, Ontario, CA 91761

    4.4
    346 reviews
    In-Bay Automatic Chain · 76 $67K AGI ZIP
Frequently Asked Questions

About Ontario, CA

What is the best-rated car wash in Ontario, CA?

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Anthem Express Car Wash is the highest-rated car wash in Ontario, CA at 4.9★ across 1,790 Google reviews. The location is at 2390 S Archibald Ave, Ontario, CA 91761.

What are the top 5 car washes in Ontario, CA?

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Ranked by Google review rating (filtering to locations with at least 30 reviews): 1. Anthem Express Car Wash (4.9★, 1,790 reviews); 2. PrimeWash Express (4.8★, 1,558 reviews); 3. Voltage Car Wash (4.5★, 101 reviews); 4. Fast5Xpress Car Wash Ontario - S Grove Ave (4.4★, 534 reviews); 5. 76 (4.4★, 346 reviews).

How is the "best" car wash determined in this list?

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WashIndex ranks Ontario, CA car washes by their Google review rating, restricted to locations with at least 30 customer reviews so that small-sample outliers don't surface. Where ratings tie, the location with more reviews wins. The pool is restricted to the LLM-classified car-wash formats that actually wash vehicles on site — Express Tunnel, Full Service, In-Bay Automatic, Self-Serve Bay and Hand Wash — so that detailing/tint shops, car dealerships and gas stations with attached washes don't crowd out the actual car-wash operators.

About this ranking

Ranking restricts to LLM-classified car wash formats with at least 30 Google reviews. Anthem Express Car Wash's 0.50-star lead over the rest of the top 5 is large enough that small rating movements won't change the #1 position. Ties broken by review count.

Full Ontario, CA market analysis is linked above — covers everything below the top tier, including format mix, ZIP-income overlay, and customer-experience signals across the 19-location market. Full Ontario, CA analysis › · Methodology ›

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