Groundwork

Beauty and personal care · County · Michigan

Nail salons in St. Clair County, MI

Competitor counts, household spending and official business counts for nail salons in St. Clair County, MI, set against other counties and the U.S.

Groundwork market score · out of 100

Score 66 out of 100: Upper middle

Ranked #236 of 1,328 scored counties
#18 of 34 scored counties in Michigan

Listings
21
8 chain locations (38%)
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$65M
On personal care products and services · $959 a household
Spending per listing
$3.1M
85% above the U.S.
Listings per 10k households
3.1
48% below the U.S.
Population, 2025
160,486
+0.1% since 2020

See the nail salons around any address in St. Clair County

The site report maps the nail salons on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of St. Clair County. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

At $959 per household (5% below the U.S. average), households in St. Clair County spend about $65M a year on personal care products and services. That works out to $3.1M per salon, 85% above the U.S. figure of $1.7M. The spending figure covers all personal care products and services, not only nail salons.

There are 21 nail salons on map listings in St. Clair County as of September 2026. 8 of them (38%) are chain locations, against 27% across the U.S. That comes to 3.1 for every 10,000 households, 48% below the U.S. rate of 6.0.

Official counts don’t publish a figure for nail salons in St. Clair County, since they leave out counts under 3. Official counts also show 76 one-person businesses without payroll.

Population estimates put the population change in St. Clair County from 2020 to 2025 at +0.1%, slower than the U.S. (+3.1%). St. Clair County scores 66 (upper middle) on the Groundwork market score for nail salons, ranking #236 of 1,328 scored counties and #18 of 34 scored counties in Michigan. That puts it in the top quarter of counties.

How St. Clair County compares

The same measures for Michigan and the whole U.S. Spending per listing divides a year of household spending on all personal care products and services by the nail salons counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Nail salons in St. Clair County, MI compared with Michigan and the U.S.
MeasureSt. Clair CountyMichiganU.S.
Listings per 10k households3.14.36.0
Spending per listing$3.1M$2.3M$1.7M
Households per official establishmentn/a16,7063,754
Official establishment growth, 2019–2023n/a+71.8%+23.2%
Population growth, 2020–2025+0.1%+0.6%+3.1%
Spending per household on personal care products and services$959$986$1,005
Median household income$71,270$72,875$80,734
Groundwork market score6665

Official counts and lending

Businesses

Official establishments, 2019 to 2023
n/a
Employees, 2023
n/a
Annual payroll, 2023
n/a
One-person businesses, 2023
76Businesses with no payroll
Map listings, September 2026
218 chain locations
Listings at the U.S. rate for this spending
39The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
0
Amount
$0

SBA-backed loans to businesses classed as nail salons in St. Clair County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in St. Clair County

Population, 2025 estimate
160,486+0.1% since 2020
Households
67,816
Median age
44.6
Homes lived in by their owners
81%
Vehicles per household
1.8
Land area
722 sq. mi.
People per square mile
222
Median household income
$71,270+25.1% vs. 2015–2019, before inflation
Average household income
$90,621
Median home value
$224,600
Jobs located here
41,623
Daytime population
129,372Residents who don’t work, plus everyone whose job is here

Looking at a specific site in St. Clair County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the nail salons on map listings by name and distance.

Or open the report at the center of St. Clair County. Signed out, you see a blurred preview; on an account, each report is one action.

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Nail salons across Michigan

Every Michigan market ranked →

The highest-scoring counties in Michigan for nail salons, numbered among those based in Michigan, with St. Clair County marked.

Top counties in Michigan

Counties in Michigan ranked for nail salons by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Ottawa County, MI87383.4$3.2M+3.9%#13 of 1,328
2Livingston County, MI84283.7$3.2M+1.7%#24 of 1,328
3Clinton County, MI8051.6$6.8M+1.6%#45 of 1,328
4Allegan County, MI79112.4$4.3M+2.1%#51 of 1,328
5Barry County, MI7762.5$4.1M+2.2%#64 of 1,328
6Washtenaw County, MI77533.5$3.1M−0.4%#66 of 1,328
7Monroe County, MI75132.1$4.9M+0.7%#79 of 1,328
8Montcalm County, MI7462.4$3.7M+4.1%#98 of 1,328
9Muskegon County, MI73213.1$2.9M+1.8%#114 of 1,328
10Marquette County, MI7162.1$4.3M+2.3%#129 of 1,328
18St. Clair County, MI66213.1$3.1M+0.1%#236 of 1,328

Other business types in St. Clair County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many nail salons are in St. Clair County, MI?

As of September 2026, map listings count 21 nail salons in St. Clair County. 8 of them (38%) are chain locations. The listings count nail salons. No official count is published for nail salons in St. Clair County: counts under 3 are left out. Official counts list 76 one-person businesses without payroll.

How much do households in St. Clair County, MI spend on personal care products and services?

About $65M a year, or $959 per household. That is 5% below the U.S. average (an index of 95, where 100 is the U.S. average). Spread across the 21 nail salons on map listings, it comes to $3.1M per salon. That spending covers all personal care products and services, which nail salons share with other businesses in the trade. It is estimated from the incomes of the 67,816 households in St. Clair County and national spending patterns by income.

How does St. Clair County, MI compare with the U.S. for nail salons?

St. Clair County has 3.1 nail salons per 10,000 households, 48% below the U.S. rate of 6.0. Spending per salon is $3.1M, 85% above the U.S. figure of $1.7M. At the U.S. ratio of nail salons to household spending, St. Clair County would have about 39, against 21 on map listings.

How fast is St. Clair County, MI growing?

Population estimates put St. Clair County at 160,486 people in 2025, up 0.1% since 2020, slower than the U.S. (+3.1%). It has 67,816 households. Median household income in St. Clair County is $71,270, 12% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 25.1%, before inflation.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. St. Clair County scores 66 for nail salons (upper middle), #236 of 1,328 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in St. Clair County. It maps the nail salons on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for nail salons · All 56 business types in St. Clair County

Screening a site or an acquisition in St. Clair County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of St. Clair County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.