Sun Prairie, WI Car Wash Market Analysis
Part of the Madison, WI MSA.
Data updated · May 22, 2026
6,523 Google reviews across 10 car washes in Sun Prairie. Format mix, operator rank, geographic distribution, income overlay, customer-experience signals.
Snapshot
- Locations
- 10
- Chains
- 5
- lead: Woodman's Gas Station (2)
- Avg rating
- 4.48★
- +0.07 vs MSA median
- Damage rate
- 1.2%
- 1.3× below MSA norm
- Top format
- in-bay automatic
- 50% of classified
- Median single wash
- $25
- range $25–$25
- Median unlimited
- $24.97/mo
- cheapest $24.97/mo at Mr. Splash Car Wash
Market Quality snapshot
- Population
- 36,455
- ACS 2023 5-year
- Households
- 15,291
- ACS 2023 5-year
- Residents per wash
- 3,646
- 1.9× the national MSA median — lighter supply
- Express tunnels per 10K households
- 0.7
- in the 0.5–1.0 filling band · classified sites
Key findings
- 10 car wash locations operated by 5 chains and 3 independents.
- Weighted Google rating 4.48★ across the market; structural concentration and format mix sit near US-market norms.
- Built from 6,523 Google reviews, 684 of them AI-extracted across 55 dimensions.
10 car wash locations in Sun Prairie, WI · dots colored by format · sized by review volume
No single structural signal jumps out for Sun Prairie — it's a mid-shape car wash market. 10 locations across 5 chains and 3 independents. Distinctive patterns show up below at the format and aspect levels.
Weighted rating 4.48★; damage 1.2%; membership-cancel friction 30.0%. Equipment reliability runs as the sharpest friction (-0.57). 6,523 Google reviews drive the analysis, 684 of them processed through the WashIndex LLM extractor.
Published pricing across the 1 of 10 Sun Prairie locations with menus available: median single car wash $25 (range $25–$25), median unlimited membership $24.97/month (range $24.97–$24.97/mo). The cheapest unlimited membership in the city is $24.97/mo at Mr. Splash Car Wash (Deluxe).
See the best-rated car washes in Sun Prairie, WI
Ranked by Google review rating
What does a car wash cost in Sun Prairie, WI?
Published menu pricing for car washes in Sun Prairie, captured from operator websites and the WashIndex AI calling agent. 1 of 10 tracked locations in the city have usable published pricing (10% coverage).
| Cheapest unlimited memberships in Sun Prairie | ||
|---|---|---|
| 1 | Mr. Splash Car Wash Deluxe | $24.97/mo |
| Cheapest single car washes in Sun Prairie | ||
|---|---|---|
| 1 | Mr. Splash Car Wash Best Wash | $25 |
Pricing scraped from operator websites where published; the WashIndex AI calling agent rings up locations that don’t publish menus online to capture pricing directly.
About Sun Prairie, WI
How many car washes are in Sun Prairie, WI?
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What is the best-rated car wash in Sun Prairie, WI?
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Which car wash chains operate in Sun Prairie, WI?
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What is the median household income near Sun Prairie car washes?
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What is the average car wash rating in Sun Prairie, WI?
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How much does a car wash cost in Sun Prairie, WI?
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How much does an unlimited car wash membership cost in Sun Prairie, WI?
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What is the cheapest car wash in Sun Prairie, WI?
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What kinds of car washes does Sun Prairie have?
The table below lists every operating format we classify, with locations, reviews, average rating, damage rate, and membership-cancel friction broken out per format. Sun Prairie's mix sits close to the US-city median shape.
Highest-rated format in this market: Detail Shop at 4.86★ (3 locations). Lowest: Express Tunnel at 4.40★ (1 locations).
| Format | Locations | % of MSA | Reviews | Avg Rating | Damage Rate | Cancel Friction |
|---|---|---|---|---|---|---|
| In-Bay Automatic | 5 | 50.0% | 5,709 | 4.47 | 1.04% | — |
| Detail Shop | 3 | 30.0% | 339 | 4.86 | 0.00% | — |
| Express Tunnel | 1 | 10.0% | 440 | 4.40 | 4.49% | 30.0% |
| Self-Serve Bay | 1 | 10.0% | 35 | 5.00 | 0.00% | — |
What is the typical household income near Sun Prairie car washes?
Read together with the format mix above, the income scatter below tells you whether car wash quality in Sun Prairie tracks neighborhood income, format mix, or neither. Operating quality usually dominates this picture.
Pearson r between ZIP income and rating across 10 qualifying locations: 0.00 — effectively zero. Operating quality dominates over neighborhood income here. Scatter mean: $92K AGI/return, 4.28★.
Car wash count and quality by income tier
Blue bars: location count per tier. Orange tick marks: average Google rating (same y-axis).
| Income tier (mean AGI/return) | ZIPs | Locations | Reviews | Avg Rating | Top Format |
|---|---|---|---|---|---|
| Under $50K | 0 | 0 | 0 | 0.00 | — |
| $50K – $75K | 0 | 0 | 0 | 0.00 | — |
| $75K – $100K | 1 | 10 | 6,523 | 4.48 | In-Bay Automatic (5) |
| $100K – $150K | 0 | 0 | 0 | 0.00 | — |
| $150K+ | 0 | 0 | 0 | 0.00 | — |
The highest-income tier ($150K+) contains 0 car washes across 0 ZIPs at 0.00★, against 0 sites across 0 ZIPs at 0.00★ in the lowest. Middle-income tiers typically host the densest express-tunnel concentrations — the part of the income curve where that format's unit economics are strongest.
Who operates the most Sun Prairie car washes?
5 chains alongside 3 independents make up Sun Prairie's car wash supply. The chain rank below shows the multi-location operators' position; the per-location detail near the bottom of the page captures the independent layer.
| # | Chain | Locations | Reviews | Avg Rating | Damage | Cancel | Upsell |
|---|---|---|---|---|---|---|---|
| 1 | Woodman's Gas Station | 2 | 5,614 | 4.48 | 1.07% | — | 0.00% |
| 2 | bp | 2 | 34 | 3.30 | — | — | — |
| 3 | Mr. Splash Car Wash | 1 | 440 | 4.40 | — | — | — |
| 4 | Kelley's Market | 1 | 61 | 3.90 | — | — | — |
| 5 | Dave's Car Wash | 1 | 35 | 5.00 | — | — | — |
What do customers love and complain about at Sun Prairie car washes?
Seven aspects, 684 reviews, 10 locations. The grid below gives a quick read on which dimensions of the experience Sun Prairie's car wash market does well at and which generate friction.
Where are the 10 car washes in Sun Prairie, WI?
10 car washes are tracked in Sun Prairie; below is the top of the list by Google review count. Locations with fewer than 10 reviews are excluded from the rating column.
| Location | City | Format | Chain | Rating | Reviews | ZIP AGI |
|---|---|---|---|---|---|---|
| Woodman's Food Market 1099 S Grand Ave | Sun Prairie, WI | In-Bay Automatic | Woodman's Gas Station | 4.5 | 5,370 | $92K |
| Mr. Splash Car Wash 385 S Grand Ave | Sun Prairie, WI | Express Tunnel | Mr. Splash Car Wash | 4.4 | 440 | $92K |
| Woodman's Gas Station 1099 S Grand Ave | Sun Prairie, WI | In-Bay Automatic | Woodman's Gas Station | 4.0 | 244 | $92K |
| NV Auto Styling 516 Commercial Ave | Sun Prairie, WI | Detail Shop | — | 5.0 | 180 | $92K |
| Four Seasons Auto Detailing LLC 50 Kroncke Dr | Sun Prairie, WI | Detail Shop | — | 4.7 | 86 | $92K |
| Just Details, L.L.C. 423 Columbus St | Sun Prairie, WI | Detail Shop | — | 4.7 | 73 | $92K |
| Kelley's Market 276 Davison Dr | Sun Prairie, WI | In-Bay Automatic | Kelley's Market | 3.9 | 61 | $92K |
| Go Detailers | Madison, Wisconsin 2576 Blue Heron Blvd | Sun Prairie, WI | Self-Serve Bay | Dave's Car Wash | 5.0 | 35 | $92K |
| bp 605 E Main St | Sun Prairie, WI | In-Bay Automatic | bp | 3.5 | 17 | $92K |
| bp 1354 N Bird St | Sun Prairie, WI | In-Bay Automatic | bp | 3.1 | 17 | $92K |
Compare Sun Prairie to other car wash markets in the Madison metro
Cities in the same metro, ordered by closest comparable size. Each link runs the same operator concentration, format mix, and customer-experience analysis.
Data as of 2026-05-22. Pick a format and click Copy.
WashIndex. (2026, May 22). Sun Prairie, WI car wash market analysis. https://washindex.com/car-wash-cities/sun-prairie-wi
WashIndex. "Sun Prairie, WI car wash market analysis." WashIndex. Last modified May 22, 2026. https://washindex.com/car-wash-cities/sun-prairie-wi.
"Sun Prairie, WI car wash market analysis." WashIndex, May. 22, 2026, https://washindex.com/car-wash-cities/sun-prairie-wi.
@misc{washindex_car_wash_cities_sun_prairie_wi_2026,
title = {{Sun Prairie, WI car wash market analysis}},
author = {{WashIndex}},
year = {2026},
month = {May},
url = {https://washindex.com/car-wash-cities/sun-prairie-wi},
urldate = {2026-05-22},
} About this analysis
Car wash inventory for Sun Prairie, WI is sourced from the WashIndex national car-wash place index, filtered to places whose Google-Maps-reported city matches Sun Prairie, and further restricted to places whose format the WashIndex LLM classifier identified as a car wash (excluding dealerships, gas stations, and other auto-related businesses that don't primarily operate a car wash). Inclusion in the parent Madison MSA dataset is established by point-in-polygon against the official US Census county boundaries (TIGER/Line, 2024).
Operating-quality signals are derived from 684 customer reviews processed through WashIndex's 55-field LLM extraction pipeline. Format classification comes from a separate per-location website-reading classifier. ZIP-level income data is from the IRS Statistics of Income (tax year 2022) — mean Adjusted Gross Income per tax return, which is directionally aligned with ACS median household income but available without authentication.
See our full methodology for the extraction pipeline, validation samples, and aggregation logic. Term definitions in the glossary.
Machine-readable: JSON ↓ · API root
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