Pets · County · Missouri
Pet stores in St. Charles County, MO
The pet stores in St. Charles County, MO, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 50 out of 100: Upper middle
Ranked #486 of 974 scored counties
#10 of 23 scored counties in Missouri
- Listings
- 48
- 22 chain locations (46%)
- Official establishments
- 21
- 0.0% since 2019
- Household spending a year
- $166.8M
- On pets · $1,034 a household
- Spending per listing
- $3.5M
- 23% below the U.S.
- Listings per 10k households
- 3.0
- 50% above the U.S.
- Population, 2025
- 426,499
- +4.9% since 2020
See the pet stores around any address in St. Charles County
The site report maps the pet stores 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. Charles County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
Households in St. Charles County spend about $166.8M a year on pets, or $1,034 per household, 14% above the U.S. average. Spread across 48 pet stores, that is $3.5M per store, 23% below the U.S. figure of $4.5M. The spending figure covers all pets, not only pet stores.
There are 48 pet stores on map listings in St. Charles County as of September 2026. Chain locations make up 46% of them, against 38% across the U.S. That comes to 3.0 for every 10,000 households, 50% above the U.S. rate of 2.0.
Official counts show 21 businesses with payroll classed as pet and pet supplies stores in St. Charles County in 2023, unchanged from 2019. That is one for every 7,681 households, against one for every 13,024 across the U.S. Since fiscal 2022, 3 SBA-backed loans worth $1.2M have gone to businesses classed as pet and pet supplies stores in St. Charles County.
Population estimates show St. Charles County grew 4.9% from 2020 to 2025, faster than the U.S. (+3.1%). St. Charles County scores 50 (upper middle) on the Groundwork market score for pet stores, ranking #486 of 974 scored counties and #10 of 23 scored counties in Missouri.
How St. Charles County compares
The same measures for Missouri and the whole U.S. Spending per listing divides a year of household spending on all pets by the pet stores counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | St. Charles County | Missouri | U.S. |
|---|---|---|---|
| Listings per 10k households | 3.0 | 2.0 | 2.0 |
| Spending per listing | $3.5M | $4.1M | $4.5M |
| Households per official establishment | 7,681 | 13,485 | 13,024 |
| Official establishment growth, 2019–2023 | 0.0% | −2.1% | −1.6% |
| Population growth, 2020–2025 | +4.9% | +1.9% | +3.1% |
| Spending per household on pets | $1,034 | $825 | $909 |
| Median household income | $104,692 | $70,702 | $80,734 |
| Groundwork market score | 50 | 35 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 21 → 210.0% over the period
- Employees, 2023
- 247
- Annual payroll, 2023
- $8M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 4822 chain locations
- Listings at the U.S. rate for this spending
- 37The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 3
- Amount
- $1.2M
SBA-backed loans to businesses classed as pet and pet supplies stores in St. Charles 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. Charles County
- Population, 2025 estimate
- 426,499+4.9% since 2020
- Households
- 161,311
- Median age
- 40.8
- Homes lived in by their owners
- 81%
- Vehicles per household
- 2.0
- Land area
- 560 sq. mi.
- People per square mile
- 740
- Median household income
- $104,692+23.2% vs. 2015–2019, before inflation
- Average household income
- $129,305
- Median home value
- $320,800
- Jobs located here
- 167,185
- Daytime population
- 365,581Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Charles 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 pet stores on map listings by name and distance.
Or open the report at the center of St. Charles County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardPet stores across Missouri
Every Missouri market ranked →The highest-scoring counties in Missouri for pet stores, numbered among those based in Missouri, with St. Charles County marked.
Top counties in Missouri
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Jefferson County, MO | 75 | 14 | 1.6 | $5.5M | +2.7% | #101 of 974 |
| 2Cass County, MO | 71 | 7 | 1.6 | $5.6M | +7.1% | #154 of 974 |
| 3Jackson County, MO | 61 | 50 | 1.6 | $5M | +2.1% | #297 of 974 |
| 4St. Louis city, MO | 60 | 14 | 1.0 | $7.7M | −7.4% | #306 of 974 |
| 5Clay County, MO | 60 | 18 | 1.8 | $5.2M | +4.3% | #311 of 974 |
| 6Boone County, MO | 60 | 15 | 2.0 | $4.3M | +4.2% | #318 of 974 |
| 7Platte County, MO | 52 | 13 | 3.0 | $3.4M | +6.7% | #447 of 974 |
| 8Christian County, MO | 51 | 10 | 2.8 | $3M | +8.3% | #472 of 974 |
| 9St. Louis County, MO | 50 | 77 | 1.9 | $5.1M | −1.2% | #477 of 974 |
| 10St. Charles County, MO | 50 | 48 | 3.0 | $3.5M | +4.9% | #486 of 974 |
Other business types in St. Charles County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Pets
- Pet businesses64
- Veterinarians68
- Pet grooming and boarding64
- Pet stores50
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many pet stores are in St. Charles County, MO?
As of September 2026, map listings count 48 pet stores in St. Charles County. 22 of them (46%) are chain locations. The listings count pet stores. Official counts show 21 businesses with payroll classed as pet and pet supplies stores in 2023, unchanged from 2019.
How much do households in St. Charles County, MO spend on pets?
About $166.8M a year, or $1,034 per household. That is 14% above the U.S. average (an index of 114, where 100 is the U.S. average). Spread across the 48 pet stores on map listings, it comes to $3.5M per store. That spending covers all pets, which pet stores share with other businesses in the trade. It is estimated from the incomes of the 161,311 households in St. Charles County and national spending patterns by income.
How does St. Charles County, MO compare with the U.S. for pet stores?
St. Charles County has 3.0 pet stores per 10,000 households, 50% above the U.S. rate of 2.0. Spending per store is $3.5M, 23% below the U.S. figure of $4.5M. At the U.S. ratio of pet stores to household spending, St. Charles County would have about 37, against 48 on map listings. There is one business with payroll in the industry for every 7,681 households, against one for every 13,024 across the U.S. The official count held level from 2019 to 2023, against −1.6% for the U.S.
How fast is St. Charles County, MO growing?
Population estimates put St. Charles County at 426,499 people in 2025, up 4.9% since 2020, faster than the U.S. (+3.1%). It has 161,311 households. The median household income in St. Charles County is $104,692 a year, 30% above the U.S. median of $80,734. That rose 23.2% from the 2015–2019 survey, 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. Charles County scores 50 for pet stores (upper middle), #486 of 974 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in St. Charles County. It maps the pet stores 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 pet stores · All 56 business types in St. Charles County
Screening a site or an acquisition in St. Charles 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. Charles 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.