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Market Analysis · CBSA 11460

Ann Arbor Car Wash Market Analysis

Ann Arbor, MI

Data updated · June 9, 2026

16,554 Google reviews across 176 car wash locations in this chain-consolidated metro. Per-chain ratings vs. footprint, format mix, customer-experience signals across the chain-heavy market.

Snapshot

Locations
176
78% independent
Chains
12
lead: bp (14 sites)
Avg rating
4.34★
-0.07 vs national MSA median
Damage rate
1.6%
near national MSA norm
Cancel friction
16.1%
Top format
in-bay automatic
40% of classified inventory
Median single wash
$35
range $8–$40
Median unlimited
$15/mo
cheapest $15/mo at Zax Auto Wash

Market Quality snapshot

Population
368,394
ACS 2023 5-year
Households
149,256
ACS 2023 5-year
Residents per wash
2,093
near the national MSA median
Express tunnels per 10K households
0.6
in the 0.5–1.0 filling band · classified sites

Key findings

  • 176 car wash locations operated by 12 chains and 137 independents across 1 county.
  • Top 10 chains control 21.0% of locations — above the 11.4% US-metro median, led by bp (14 sites).
  • Built from 16,554 Google reviews, 4,493 of them AI-extracted across 55 dimensions.
In-Bay Automatic (17)Detail Shop (14)Express Tunnel (9)Self-Serve Bay (2)Full Service (2)

176 car wash locations across 1 counties · dots colored by format · sized by review volume

Locations
176
Chains
12
+ 137 independents
Reviews
17K
Avg Rating
4.34
Damage Rate
1.60%
Median AGI/return
$94K
location-weighted
Executive Read

Ann Arbor stands out for how much chain rollup has reshaped supply. 12 chains operate alongside 137 independents, but bp (14 sites) accounts for the largest single concentration. Most of the quality variance below comes from chain-vs-chain differences rather than chain-vs-independent ones.

Operating-quality aggregates: rating 4.34★, damage 1.6%, membership-cancel friction 16.1%. Equipment reliability is the sharpest friction point (-0.76). The chain-rank table below is the most actionable section on this page.

Published pricing across the 12 of 178 Ann Arbor locations with menus available: median single car wash $35 (range $8–$40), median unlimited membership $15/month (range $15–$19.99/mo). The cheapest unlimited membership in the metro is $15/mo at Zax Auto Wash (Fusion Bath).

Top operators

See the top car wash chains in Ann Arbor

Ranked by location count in the metro

$$ Pricing

What does a car wash cost in the Ann Arbor metro?

Published menu pricing for car washes in the Ann Arbor metropolitan area, captured from operator websites and the WashIndex AI calling agent. 12 of 178 tracked locations have usable published pricing (7% coverage).

Single Wash
$35
median · range $8–$40 · 12 locations tracked
Unlimited Membership
$15 per month
median · range $15–$19.99 per month · 6 programs tracked
Cheapest unlimited memberships in Ann Arbor
1 Zax Auto Wash Fusion Bath $15 per mo
2 Zax Auto Wash Fusion Bath $15 per mo
3 Zax Auto Wash Fusion Bath $15 per mo
4 Zax Auto Wash Fusion Bath $15 per mo
5 Zax Auto Wash Fusion Bath $15 per mo
Cheapest single car washes in Ann Arbor
1 Mr Bubbles Auto Spa Mr Bubble Special $8
2 Sebring Touchless Car Wash Basic Wash $8
3 Tommy's Express® Car Wash QUALITY $9
4 Jax Kar Wash - Ann Arbor Basic $11
5 Jax Kar Wash Basic $11

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.

Official industry footprint · BLS QCEW 2024

The car wash industry in the Ann Arbor metro, officially

the Ann Arbor metro has 12 car-wash employer establishments employing about 109 people, at a $30,536 average annual wage.

Employer establishments
12
NAICS 811192 · 2024
Industry jobs
109
private, annual avg
Avg annual wage
$30,536
per employee

Source: U.S. Bureau of Labor Statistics, QCEW (private, NAICS 811192). Counts car-wash employer establishments, a narrower universe than all physical wash locations — see methodology.

Frequently Asked Questions

About the Ann Arbor car wash market

How many car washes are in the Ann Arbor metro?

+
There are 176 car wash locations across the Ann Arbor, MI CBSA, spanning 1 counties.

What is the best-rated car wash in the Ann Arbor metro?

+
A2 Plus Complete Detailing LLC in Ypsilanti, MI is the highest-rated car wash in the Ann Arbor metro at 5.0★ across 690 Google reviews (filtering to locations with at least 100 reviews).

Which car wash chain has the most locations in Ann Arbor?

+
bp has the most locations in the Ann Arbor metro with 14 sites, followed by Zax Auto Wash (5 sites). The metro has 12 multi-location operators in total, alongside 137 independent or single-location sites.

What is the average customer rating in the Ann Arbor car wash market?

+
The review-weighted average rating across all 176 car washes in the Ann Arbor metro is 4.34★, based on 16,554 Google reviews processed through WashIndex's customer-experience pipeline.

What is the typical household income near car washes in Ann Arbor?

+
Across the ZIP codes containing the Ann Arbor metro's car washes, the location-weighted median IRS-reported AGI per tax return is $94K (tax year 2022) — a rough proxy for trade-area household income.

How much does a car wash cost in Ann Arbor?

+
Single-wash prices across the Ann Arbor car wash market range from $8 to $40, with a median of $35 across 12 locations that publish their pricing. The cheapest single car wash in the metro is $8 at Mr Bubbles Auto Spa (Mr Bubble Special). Pricing data is captured from operator websites and the WashIndex AI calling agent.

How much does an unlimited car wash membership cost in Ann Arbor?

+
Unlimited car wash memberships in the Ann Arbor metro range from $15/month to $19.99/month, with a median of $15/month across 6 programs tracked. The cheapest unlimited membership is $15/month at Zax Auto Wash (Fusion Bath); the most expensive tracked is $19.99/month at Tommy's Express® Car Wash (QUALITY).

What is the cheapest car wash in Ann Arbor?

+
The cheapest single car wash in the Ann Arbor metro is $8 at Mr Bubbles Auto Spa (Mr Bubble Special tier). For ongoing customers, the cheapest unlimited membership is $15/month at Zax Auto Wash (Fusion Bath) — a break-even of roughly 0.4 washes per month at the metro's median single-wash price of $35.
01 Format Mix

What kinds of car washes does Ann Arbor have?

Because chain operators have consolidated supply here, format counts below skew toward the formats those chains build at scale. The lowest-rated format is usually a long-tail mix of small operators rather than a meaningful share of the market.

Highest-rated format: Detail Shop at 4.81★ across 13 locations. Lowest-rated: Full Service at 3.53★ (2 locations).

In-Bay Automatic17 (39.5%) · 3.68★Detail Shop13 (30.2%) · 4.81★Express Tunnel9 (20.9%) · 3.92★Self-Serve Bay2 (4.7%) · 3.89★Full Service2 (4.7%) · 3.53★
Format Locations % of MSA Reviews Avg Rating Damage Rate Cancel Friction
In-Bay Automatic 17 9.7% 1,152 3.68 0.00% 0.0%
Detail Shop 13 7.4% 2,305 4.81 1.03%
Express Tunnel 9 5.1% 1,482 3.92 3.87% 15.8%
Self-Serve Bay 2 1.1% 318 3.89 4.26%
Full Service 2 1.1% 889 3.53 2.26% 25.0%
02 Income & Demographics

What is the household income near Ann Arbor car washes?

The scatter below joins IRS Statistics-of-Income (mean AGI per return, 2022 tax year) to each car wash's ZIP. In Ann Arbor, where chains have aggressively rolled up supply, expect the densest car wash deployment in middle-to-upper-middle income ZIPs.

Pearson r between ZIP income and Google rating across 75 qualifying locations: 0.10 — effectively zero. Operating quality dominates over neighborhood income. Scatter mean: $103K AGI/return, 4.05★.

3.0★3.5★4.0★4.5★5.0★$20K$50K$80K$110K$140K$170K$200KMean AGI per Tax Return (ZIP)Google RatingVarsity Ford — Ann Arbor (48103): 4.7★, 4298 reviews, $137K AGI per return, UnclassifiedZippy Auto Wash — Ann Arbor (48108): 4.2★, 1066 reviews, $115K AGI per return, UnclassifiedA2 Plus Complete Detailing LLC — Ypsilanti (48197): 5.0★, 690 reviews, $71K AGI per return, Detail ShopArborMotion — Ann Arbor (48108): 4.9★, 595 reviews, $115K AGI per return, Detail ShopBlue Beacon Truck Wash of Dexter, MI — Dexter (48130): 3.5★, 579 reviews, $135K AGI per return, Full ServiceZippy Auto Wash — Ann Arbor (48103): 4.0★, 509 reviews, $137K AGI per return, UnclassifiedZippy Auto Wash — Saline (48176): 4.3★, 412 reviews, $128K AGI per return, UnclassifiedMain Street Motors — Ann Arbor (48104): 4.7★, 383 reviews, $144K AGI per return, UnclassifiedZippy Auto Wash — Ypsilanti (48197): 4.1★, 383 reviews, $71K AGI per return, UnclassifiedMr Bubbles Auto Spa — Ypsilanti (48198): 4.4★, 353 reviews, $60K AGI per return, Express TunnelEzel Detailing LLC — Van Buren Township (48111): 5.0★, 348 reviews, $65K AGI per return, UnclassifiedCommunity Auto Wash — Ann Arbor (48104): 3.6★, 310 reviews, $144K AGI per return, Full ServiceSebring Touchless Car Wash — Belleville (48111): 3.9★, 302 reviews, $65K AGI per return, Self-Serve BayAuto Alignments Plus — Ypsilanti (48197): 4.8★, 253 reviews, $71K AGI per return, Detail ShopHeritage Collision — Ann Arbor (48103): 4.6★, 250 reviews, $137K AGI per return, UnclassifiedJax Kar Wash - Ann Arbor — Ann Arbor (48108): 4.1★, 248 reviews, $115K AGI per return, Express TunnelZax Auto Wash — Ypsilanti (48197): 3.7★, 243 reviews, $71K AGI per return, Express TunnelZax Auto Wash — Chelsea (48118): 3.0★, 227 reviews, $109K AGI per return, Express TunnelDirt Squirt Auto Spa — Whitmore Lake (48189): 3.2★, 222 reviews, $93K AGI per return, UnclassifiedJax Kar Wash — Ann Arbor (48103): 4.4★, 214 reviews, $137K AGI per return, Express TunnelShine N Bright Car Wash — Superior Township (48198): 4.4★, 200 reviews, $60K AGI per return, Unclassifiedbp — Ann Arbor (48104): 3.9★, 194 reviews, $144K AGI per return, In-Bay AutomaticJ.J. Car Wash — Ypsilanti (48197): 4.0★, 191 reviews, $71K AGI per return, UnclassifiedMr Goofys Car Wash — Ypsilanti (48197): 4.0★, 171 reviews, $71K AGI per return, UnclassifiedVictory Lane touchless Carwash — Ann Arbor (48105): 3.5★, 168 reviews, $157K AGI per return, UnclassifiedZiebart — Ypsilanti (48197): 4.0★, 158 reviews, $71K AGI per return, Detail ShopMake It Beautiful Auto Detailing — Ann Arbor (48103): 4.7★, 155 reviews, $137K AGI per return, Detail Shopbp — Ann Arbor (48108): 4.0★, 154 reviews, $115K AGI per return, In-Bay AutomaticThe Village Car Wash and Laundry, Inc. — Dexter (48130): 4.4★, 150 reviews, $135K AGI per return, Unclassifiedbp — Saline (48176): 4.1★, 138 reviews, $128K AGI per return, In-Bay AutomaticRoberts Paint & Body Inc — Chelsea (48118): 4.7★, 115 reviews, $109K AGI per return, Detail ShopNick's Auto Detail — Chelsea (48118): 5.0★, 98 reviews, $109K AGI per return, Detail ShopZax Auto Wash — Saline (48176): 3.9★, 87 reviews, $128K AGI per return, Express TunnelBubbles — Milan (48160): 3.2★, 86 reviews, $80K AGI per return, UnclassifiedCar wash Touchless &. BP Fuels — Saline (48176): 4.5★, 80 reviews, $128K AGI per return, UnclassifiedSplash N’ Dash Self Car Wash — Ypsilanti (48197): 2.3★, 80 reviews, $71K AGI per return, UnclassifiedCar Wash — Saline (48176): 4.1★, 79 reviews, $128K AGI per return, UnclassifiedShell — Ypsilanti (48197): 3.3★, 77 reviews, $71K AGI per return, In-Bay AutomaticShell — Ypsilanti (48197): 4.1★, 75 reviews, $71K AGI per return, In-Bay Automatica2 auto image — Ann Arbor (48103): 4.2★, 69 reviews, $137K AGI per return, UnclassifiedAutobath America — Ypsilanti (48197): 3.4★, 68 reviews, $71K AGI per return, In-Bay Automaticbp — Willis (48191): 2.9★, 64 reviews, $71K AGI per return, In-Bay Automaticbp — Ann Arbor (48104): 2.8★, 63 reviews, $144K AGI per return, In-Bay AutomaticAvenue Professional Detailing & Car Wash — Ypsilanti (48197): 4.6★, 60 reviews, $71K AGI per return, UnclassifiedManchester Car Wash — Manchester (48158): 4.6★, 59 reviews, $94K AGI per return, UnclassifiedZippy Auto Wash — Ann Arbor (48103): 4.4★, 57 reviews, $137K AGI per return, UnclassifiedTommy's Express® Car Wash — Ypsilanti (48197): 3.8★, 51 reviews, $71K AGI per return, Express TunnelShell — Ann Arbor (48103): 3.6★, 51 reviews, $137K AGI per return, In-Bay Automaticbp — Ypsilanti (48197): 3.9★, 50 reviews, $71K AGI per return, In-Bay AutomaticRich Decisions Professional Detailing — Willis (48191): 4.5★, 46 reviews, $71K AGI per return, Detail Shopbp — Ann Arbor (48105): 3.9★, 45 reviews, $157K AGI per return, In-Bay Automaticbp — Ypsilanti (48197): 2.9★, 44 reviews, $71K AGI per return, In-Bay AutomaticWithout A Mark Mobile Detailing & Cleaning Services LLC. — Ann Arbor (48108): 5.0★, 42 reviews, $115K AGI per return, Detail ShopRhino Linings of Michigan — Ypsilanti (48197): 4.6★, 41 reviews, $71K AGI per return, Detail ShopZiegler Bros Self Serve Car Wash — Ypsilanti (48198): 3.6★, 34 reviews, $60K AGI per return, UnclassifiedElevated Restyling — Ann Arbor (48103): 4.3★, 34 reviews, $137K AGI per return, Detail Shopbp — Manchester (48158): 2.5★, 34 reviews, $94K AGI per return, In-Bay Automaticbp — Manchester (48158): 4.0★, 32 reviews, $94K AGI per return, In-Bay AutomaticTotal Detail — Ann Arbor (48108): 4.5★, 31 reviews, $115K AGI per return, Detail ShopZax Auto Wash — Ann Arbor (48108): 4.2★, 31 reviews, $115K AGI per return, Express TunnelSaline Auto Spa & Tint — Saline (48176): 5.0★, 31 reviews, $128K AGI per return, UnclassifiedZax Auto Wash — Whitmore Lake (48189): 1.8★, 28 reviews, $93K AGI per return, Express Tunnelbp — Ypsilanti (48198): 3.8★, 26 reviews, $60K AGI per return, In-Bay AutomaticMugg&Bopps — Dexter (48130): 3.3★, 23 reviews, $135K AGI per return, UnclassifiedTop Gear Auto Repair — Ann Arbor (48103): 4.4★, 22 reviews, $137K AGI per return, UnclassifiedBLAST-OFF Powerwash — Ypsilanti (48198): 5.0★, 22 reviews, $60K AGI per return, Unclassifiedbp — Saline (48176): 4.1★, 20 reviews, $128K AGI per return, In-Bay AutomaticAttention 2 Detail Ann Arbor — Ann Arbor (48108): 4.8★, 18 reviews, $115K AGI per return, Detail Shopbp — Milan (48160): 4.1★, 17 reviews, $80K AGI per return, In-Bay AutomaticMobile auto bath — Ypsilanti (48197): 5.0★, 16 reviews, $71K AGI per return, UnclassifiedDiamond Auto Wash — Milan (48160): 3.7★, 16 reviews, $80K AGI per return, Self-Serve BayVarsity Ford Collision — Ann Arbor (48103): 4.3★, 15 reviews, $137K AGI per return, UnclassifiedCar Wash — Ypsilanti (48197): 2.9★, 13 reviews, $71K AGI per return, UnclassifiedHunters Auto Detailing — Willis (48191): 5.0★, 13 reviews, $71K AGI per return, UnclassifiedMajestic Concierge — Ann Arbor (48104): 4.5★, 13 reviews, $144K AGI per return, Unclassified
In-Bay Automatic Detail Shop Express Tunnel Self-Serve Bay Full Service

Car wash count and quality by income tier

Blue bars: location count per tier. Orange tick marks: average Google rating (same y-axis).

473524120Under $50K0 locs · 0.00★$50K – $75K42 locs · 4.29★$75K – $100K10 locs · 3.36★$100K – $150K47 locs · 4.39★$150K+3 locs · 3.59★
Income tier (mean AGI/return) ZIPs Locations Reviews Avg Rating Top Format
Under $50K 0 0 0 0.00
$50K – $75K 4 42 4,313 4.29 In-Bay Automatic (7)
$75K – $100K 3 10 504 3.36 In-Bay Automatic (3)
$100K – $150K 6 47 10,919 4.39 Detail Shop (9)
$150K+ 1 3 214 3.59 In-Bay Automatic (1)

Top vs. bottom tier spread: 3 sites at 3.59★ (income $150K+) vs. 0 sites at 0.00★ (income Under $50K). For Ann Arbor's consolidated chain operators, the middle-income band is where the strongest deployment density typically sits.

03 Dominant Chains

Who operates the most Ann Arbor car washes?

12 chains operate in Ann Arbor, with the top ten holding 21.0% of supply. Damage rate, cancel friction, and per-aspect ratings are broken out per chain — useful for understanding which operators drive the metro's headline numbers.

# Chain Locations Reviews Avg Rating Damage Cancel Upsell
1 bp 14 961 3.77 0.00% 0.00%
2 Zax Auto Wash 5 616 3.41 5.44% 30.6% 1.36%
3 Zippy Auto Wash 5 2,427 4.16 6.12% 16.0% 0.68%
4 Shell 3 203 3.67
5 ArborMotion 2 613 4.90 0.00% 0.00%
6 Auto Alignments Plus 2 943 4.95 0.71% 0.00%
7 Varsity Ford 2 4,313 4.70 0.28% 0.21%
8 Jax Kar Wash 2 462 4.24 1.54% 3.8% 1.93%
9 Tommy's Express® Car Wash 1 51 3.80
10 Autobath America 1 68 3.40
11 Victory Lane touchless Carwash 1 168 3.50
12 Blue Beacon 1 579 3.50
04 County Breakdown

Which counties have the most car washes in Ann Arbor?

Counties don't matter equally in a chain-consolidated market. Washtenaw County holds 178 of 176 metro locations — the operator concentration follows population density and median income, more than political geography.

County Locations % of MSA Reviews Avg Rating
Washtenaw County 178 101.1% 16,554 4.34
05 Customer Experience Signals

What do customers love and complain about in Ann Arbor?

Aspect scores below aggregate the LLM extractions across all 176 locations in Ann Arbor. In a consolidated market, these aggregates skew toward the dominant chains' operating signatures — read alongside the chain rank above.

Staff +0.75
Wash Quality +0.65
Wait Time +0.37
Per-Wash Price +0.35
Facility Cleanliness +0.12
Membership Value +0.03
Equipment Working -0.76
06 All Locations

Where are all the car washes in the Ann Arbor metro?

176 car washes in the Ann Arbor metro; the top of the list (ranked by review volume) is shown below. Most high-volume sites here belong to a top-10 chain.

Location City Format Chain Rating Reviews ZIP AGI
Varsity Ford
3480 Jackson Rd
Ann Arbor, MI Varsity Ford 4.7 4,298 $137K
Zippy Auto Wash
233 W Ellsworth Rd
Ann Arbor, MI Zippy Auto Wash 4.2 1,066 $115K
A2 Plus Complete Detailing LLC
2278 Ellsworth Rd
Ypsilanti, MI Detail Shop Auto Alignments Plus 5.0 690 $71K
ArborMotion
669 State Cir
Ann Arbor, MI Detail Shop ArborMotion 4.9 595 $115K
Blue Beacon Truck Wash of Dexter, MI
98 Baker Rd I, 94 Exit 167
Dexter, MI Full Service Blue Beacon 3.5 579 $135K
Zippy Auto Wash
177 S Zeeb Rd
Ann Arbor, MI Zippy Auto Wash 4.0 509 $137K
Zippy Auto Wash
1200 E Michigan Ave
Saline, MI Zippy Auto Wash 4.3 412 $128K
Main Street Motors
906 N Main St
Ann Arbor, MI 4.7 383 $144K
Zippy Auto Wash
5300 Carpenter Rd
Ypsilanti, MI Zippy Auto Wash 4.1 383 $71K
Mr Bubbles Auto Spa
3265 Grove Rd
Ypsilanti, MI Express Tunnel 4.4 353 $60K
Ezel Detailing LLC
51300 W Huron River Dr
Van Buren Township, MI 5.0 348 $65K
Community Auto Wash
1910 S Industrial Hwy
Ann Arbor, MI Full Service 3.6 310 $144K
Sebring Touchless Car Wash
7515 Rawsonville Rd
Belleville, MI Self-Serve Bay 3.9 302 $65K
Auto Alignments Plus
2278 Ellsworth Rd
Ypsilanti, MI Detail Shop Auto Alignments Plus 4.8 253 $71K
Heritage Collision
6550 Jackson Rd
Ann Arbor, MI 4.6 250 $137K
Jax Kar Wash - Ann Arbor
3300 Packard St
Ann Arbor, MI Express Tunnel Jax Kar Wash 4.1 248 $115K
Zax Auto Wash
4139 Ellsworth Rd
Ypsilanti, MI Express Tunnel Zax Auto Wash 3.7 243 $71K
Zax Auto Wash
910 S Main St
Chelsea, MI Express Tunnel Zax Auto Wash 3.0 227 $109K
Dirt Squirt Auto Spa
9893 Main St
Whitmore Lake, MI 3.2 222 $93K
Jax Kar Wash
3600 Jackson Rd
Ann Arbor, MI Express Tunnel Jax Kar Wash 4.4 214 $137K
Shine N Bright Car Wash
3005 E Michigan Ave
Superior Township, MI 4.4 200 $60K
bp
3031 Washtenaw Ave
Ann Arbor, MI In-Bay Automatic bp 3.9 194 $144K
J.J. Car Wash
2292 Ellsworth Rd
Ypsilanti, MI 4.0 191 $71K
Mr Goofys Car Wash
1822 W Michigan Ave
Ypsilanti, MI 4.0 171 $71K
Victory Lane touchless Carwash
1635 Plymouth Rd
Ann Arbor, MI Victory Lane touchless Carwash 3.5 168 $157K
Nearby Other MI metros

Compare Ann Arbor to other MI car wash markets

Each link drills into a full per-metro analysis — operator concentration, format mix, and customer-experience signals against the same methodology.

Cite this page

Data as of 2026-06-09. Pick a format and click Copy.

APA
WashIndex. (2026, June 9). Ann Arbor car wash market analysis. https://washindex.com/car-wash-markets/ann-arbor
Chicago
WashIndex. "Ann Arbor car wash market analysis." WashIndex. Last modified June 9, 2026. https://washindex.com/car-wash-markets/ann-arbor.
MLA
"Ann Arbor car wash market analysis." WashIndex, Jun. 9, 2026, https://washindex.com/car-wash-markets/ann-arbor.
BibTeX
@misc{washindex_car_wash_markets_ann_arbor_2026,
  title  = {{Ann Arbor car wash market analysis}},
  author = {{WashIndex}},
  year   = {2026},
  month  = {Jun},
  url    = {https://washindex.com/car-wash-markets/ann-arbor},
  urldate = {2026-06-09},
}

About this analysis

Car wash inventory for the Ann Arbor, MI CBSA is determined by point-in-polygon test against the official US Census county boundaries (TIGER/Line, 2024) for the 1 counties that make up the MSA. Each location was verified to fall inside one of those county polygons; lat/lng comes from Google Maps metadata.

Operating-quality signals are derived from 4,493 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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Drill into the data directly.

The free WashIndex platform shows every Ann Arbor car wash on an interactive map, with the same review-derived signals and demographic overlays that power this analysis. Filter by format, drive-time, or operator and compare any location head-to-head with its true competitive set.