WashIndex Intelligence Reports
Long-form research reports, methodology write-ups, market analysis, and platform updates from the data science team.
Platform updates, methodology notes, and shorter posts.
What we’re building, what we’re seeing, and how we think about the car wash industry.
How to Evaluate Car Wash Acquisition Targets Objectively: The Six-Factor Scorecard
A scored underwriting framework for car wash acquisitions built on six factors — Market Quality, Site Quality, financial quality, operating quality, membership durability, and downside risk — with the specific metrics behind each score and where the objective data comes from.
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Unlock Market Insights: Demographics and Traffic Maps for Car Washes!
Which car wash market intelligence actually maps demographics and traffic? A ranked comparison of WashIndex, Esri ArcGIS Business Analyst, Mapzot.AI, Placer.ai, StreetLight, and Buxton — plus the income, traffic-count, and drive-time layers a car wash map needs.
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Find the Best Site Selection Software with Opportunity Scoring for Car Washes!
Which car wash site selection software actually offers opportunity scoring? A ranked, data-grounded comparison of WashIndex, Mapzot.AI, Buxton, Placer.ai, SiteZeus, Kalibrate, and MMCG — and how a real opportunity score is built.
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Car Wash Lending Tracker: SBA 7(a) & 504 Loan Data
How car-wash financing actually works, by the numbers: SBA-backed car-wash loans since 2010, what they cost, how often they default, and how the picture differs by program, metro, and franchise — built from the SBA 7(a) & 504 FOIA datasets (NAICS 811192).
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Introducing the Car Wash Membership Price Index
We built a price index for car wash unlimited memberships, back-cast to 2015. It answers a question the industry has never had a clean answer to: how fast have wash-club prices actually risen? National list prices are up 16% since 2020; express tunnels are up 23%. Here's what launched and how to read it.
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Satellite Imagery, Points of Interest, and Address Search — See the Trade Area Around Any Car Wash
Three new tools turn the WashIndex map into a trade-area exploration platform: a high-resolution satellite basemap, retail points of interest (gas stations, supermarkets, big-box retail, restaurants, and more), and search-by-address to fly to any location and read its surroundings — even greenfield corners with no car wash yet. Live now in v1.3.
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Embed WashIndex Data on Any Site
Three free iframe widgets — chain profiles, metro market analyses, and city best-of leaderboards — for blogs, broker sites, news outlets, deal memos, and city guides. One-line install, always live data, real source-credit backlink. Live now at washindex.com/embed.
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Process Problem or Program Problem? Where Car Wash Membership Cancellation Pain Actually Lives
If a car wash chain's membership-cancellation complaints cluster in 2–3 sites, it's a process problem you fix store-by-store. If they're spread evenly across the network, it's a program problem you fix at the contract level. We diagnose Tommy's Express, Tidal Wave, Quick Quack, and Cobblestone using per-location Google review data.
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Canada Is Now on WashIndex
Every car wash in Canada is now on WashIndex — with reviews, format classification, customer-experience scores, and pricing in Canadian dollars. The same coverage we built for the United States, extended north of the border in v1.2.
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What a new Mister opening does to the wash next door
Mister Car Wash opened 42 new sites between January 2024 and April 2026. Review velocity at incumbents within 1 mile drops about 17% on average — with independents and non-express formats hit hardest. About 30% of openings still show a halo lift at the nearest neighbor.
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Car Wash Chain Reviews, Now Live
We've launched per-operator chain profiles for the largest US car wash brands — executive summaries, AI-extracted customer-experience signals, trade-area competitor density, monthly review velocity, and a full per-location breakdown for every chain we cover. The top 30 are live now; every chain with more than three locations is coming.
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Nationwide Pricing, Now on the Platform
Single-wash, package, and unlimited-membership prices for car washes across the United States are now live on WashIndex. We scraped operator websites for the ones that publish their menus, and used our AI calling agent to ring up every location that doesn't.
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Introducing WashIndex 1.0
From a Sparkle Technologies blog post to the operating-quality dataset for every car wash in the United States. Inside the v1.0 platform: 12M+ AI-scored reviews across seven pillars and 55 signals, format classification from website mining, and head-to-head benchmarks against the right competitive set.
Read Full ReportMulti-month studies and deep data reports.
Comprehensive, peer-style analyses built on the underlying WashIndex dataset — methodology disclosed, numbers reproducible.
The WashIndex Car Wash Market Saturation Index: The Most Oversaturated and Underserved U.S. Markets (Q2 2026)
A demand-adjusted quarterly index scoring every large U.S. metro from most underserved (0) to most oversaturated (100) — built from 24,812 professional wash locations joined to U.S. Census demand fundamentals.
The WashIndex Market Saturation Index ranks the most oversaturated and most underserved car wash markets in America for Q2 2026. Chicago is #1; nationally 42.9% of U.S. washes now operate beyond their trade area's modeled demand, and 415 have gone dark in the trailing year. Metro, state, and express-tunnel rankings built from 24,812 professional wash locations and U.S. Census data.
- 24,812 washes indexed
- 193 large metros ranked
- 42.9% over capacity
- 415 washes gone dark
- Q2 2026 · methodology v2.0
The WashIndex Membership Price Index: What Car Wash Unlimited Memberships Have Cost Since 2015
A back-cast, composition-robust price index of US car-wash unlimited-monthly-membership prices, 2015–2026 — reconstructed from archived pricing pages and validated against SEC-disclosed revenue per member.
We reconstructed what US car-wash chains charged for an unlimited wash membership from 2015 to 2026 using archived pricing pages and a matched-model, same-store price index. National list prices are up 16% since 2020; the express-tunnel cut is up 23%. This is the full methodology — the matched-model chain-linked construction, weighting, post-stratification, winsorisation, and the partial-capture guards — and what the index actually shows, validated against Mister Car Wash's SEC-disclosed ARPU.
- 195 chains priced
- 3,123 price points
- 2015–2026, annual
- 2020 = 100 base
- Validated vs. SEC ARPU
When a New Car Wash Opens, How Much Business Does It Actually Steal?
A national, data-driven look at trade-area cannibalization, using 5.9 million Google reviews and every new US car wash that opened in 2024–2025.
We tracked every new US car wash that opened between mid-2024 and late 2025 and measured what happened to every existing wash within 5 miles. The headline cannibalization effect is real but moderate — until clusters form. Two new competitors barely hurt; the third is a cliff. Same-format pairs barely affect each other, while cross-format entries can take 30%+ of a neighbor's customers. And the highest-rated incumbents are the most vulnerable, not the least.
- 5.9M Google reviews
- 6,559 new openings (2024–2025)
- 134,000 matched pairs
- 94,000+ analyzed comparisons
- Jan 2024 – Apr 2026
What Happens to Car Washes After Ownership Changes
A multi-acquisition study across 4,178 car wash sites — buyer profile, not site quality, is the strongest predictor of post-acquisition customer experience.
Across 4,178 sites with confirmed ownership changes between Jan 2024 and Apr 2026, the aggregate post-acquisition customer-experience trajectory looks flat. Underneath it, sites acquired by major consolidators show systematic declines on every measured aspect, while individually-acquired sites hold steady or improve. The decline is durable, not transitional.
- 776,637 reviews
- 4,178 sites
- 172 consolidator acquisitions
- LLM extraction, 51 dimensions
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