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Car Washes with Unlimited Membership in Sioux City, IA

9 of the 18 car washes we list in Sioux City have unlimited membership plans.

Google's listing has no field for membership programs, so whether a car wash offers an unlimited monthly plan is either buried in a review mentioning "I've got the pass" or not shown at all. Every car wash on this page has an unlimited membership confirmed straight from its own website or posted pricing, not guessed from a photo of a sign.

  1. Power Wash USA

    3059 Floyd Blvd, Sioux City, IA 51108-1461

    Open 24 Hours

    TouchlessSelf-serve baysOpen 24 hoursFree vacuumsDetailingUnlimited plans
    Call Website Directions

  2. Super Wash

    4502 Singing Hills Blvd, Sioux City, IA 51106-9703

    TouchlessSelf-serve baysFree vacuumsUnlimited plans
    Call Website Directions

  3. Hamilton Touchless

    2229 Hamilton Blvd, Sioux City, IA 51104-4154

    TouchlessDetailingUnlimited plans
    Call Website Directions

  4. Sunnybrook Shine Car Wash

    5400 Sergeant Rd, Sioux City, IA 51106-5730

    8am-9pm daily

    Unlimited plans
    Call Website Directions

  5. Silverstar Car Wash

    1700 Hamilton Blvd, Sioux City, IA 51103-3054

    Unlimited plans
    Call Website Directions

  6. Silverstar Car Wash

    4298 Sergeant Rd, Sioux City, IA 51106-4603

    Unlimited plans
    Call Website Directions

  7. Silverstar Car Wash

    4200 S York St, Sioux City, IA 51106-5125

    Unlimited plans
    Call Website Directions

  8. Silverstar Car Wash

    3108 Floyd Blvd, Sioux City, IA 51108-1464

    Unlimited plans
    Call Website Directions

  9. Silverstar Car Wash

    2519 Correctionville Rd, Sioux City, IA 51106-5739

    Unlimited plans
    Call Website Directions
Do the math against your actual wash frequency before signing up. Unlimited plans usually only pay off if you're washing more than once or twice a month, and most let you cancel anytime, so check that policy along with whether the pass works at every location the company runs, not just the one where you signed up.

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Good to know

How much do unlimited car wash memberships cost?

Most unlimited plans run somewhere between $20 and $40 a month depending on the wash tier and region, which is roughly the price of 3-5 single washes. Higher tiers that add extras like tire shine, undercarriage rinse, or hot wax typically sit at the top of that range.

Can I use one car wash membership at multiple locations?

It depends on the company. Regional and national chains usually let a single membership work at any of their locations, while independent single-site car washes only honor it where you signed up, so it's worth confirming before you plan on using it across town.