Real estate · County · Missouri
Real estate businesses in St. Charles County, MO
How St. Charles County, MO compares with other counties and the U.S. for real estate businesses: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 45 out of 100: Lower middle
Ranked #1,355 of 2,229 scored counties
#32 of 82 scored counties in Missouri
- Listings
- 537
- 33 chain locations (6%)
- Official establishments
- 361
- +14.6% since 2019
- Household spending a year
- $2.6B
- On rent and homeowner costs · $16,029 a household
- Housing spending per listing (U.S. = 100)
- 111
- 11% above the U.S.
- Listings per 10k households
- 33.3
- 14% below the U.S.
- Population, 2025
- 426,499
- +4.9% since 2020
See the real estate businesses around any address in St. Charles County
The site report maps the real estate businesses 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
As of September 2026, map listings count 537 real estate businesses in St. Charles County. Chain locations make up 6% of them, against 6% across the U.S. Per 10,000 households, that is 33.3, 14% below the U.S. rate of 38.5.
At $16,029 per household (4% below the U.S. average), households in St. Charles County spend about $2.6B a year on rent and homeowner costs. Housing spending per office is 11% above the U.S. figure. That figure is all rent and homeowner costs, used as a measure of housing demand; it is not money real estate businesses take in.
Official counts show 361 businesses with payroll classed as real estate agents, property managers, mortgage lenders and inspectors in St. Charles County in 2023, up 14.6% from 2019. That is one for every 447 households, against one for every 414 across the U.S. Another 2,296 one-person businesses have no payroll, by official counts. Since fiscal 2022, 3 SBA-backed loans worth $153K have gone to businesses classed as real estate agents, property managers, mortgage lenders and inspectors in St. Charles County.
Population estimates put the population change in St. Charles County from 2020 to 2025 at +4.9%, faster than the U.S. (+3.1%). The Groundwork market score for real estate businesses in St. Charles County is 45 (lower middle), #1,355 of 2,229 scored counties and #32 of 82 scored counties in Missouri.
How St. Charles County compares
The same measures for Missouri and the whole U.S. Housing spending per listing divides all rent and homeowner costs by the listings counted: a measure of housing demand for each business, not money any of them take in, so it is shown against the U.S. (100) only. Households per establishment divides households by the official count.
| Measure | St. Charles County | Missouri | U.S. |
|---|---|---|---|
| Listings per 10k households | 33.3 | 32.9 | 38.5 |
| Housing spending per listing (U.S. = 100) | 111 | 97 | 100 |
| Households per official establishment | 447 | 540 | 414 |
| Official establishment growth, 2019–2023 | +14.6% | +15.3% | +15.8% |
| Population growth, 2020–2025 | +4.9% | +1.9% | +3.1% |
| Spending per household on rent and homeowner costs | $16,029 | $13,809 | $16,661 |
| Median household income | $104,692 | $70,702 | $80,734 |
| Groundwork market score | 45 | 37 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 315 → 361+14.6% over the period
- Employees, 2023
- 1,388
- Annual payroll, 2023
- $84.1M
- One-person businesses, 2023
- 2,296Businesses with no payroll
- Map listings, September 2026
- 53733 chain locations
- Listings at the U.S. rate for this spending
- 597The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 3
- Amount
- $153K
SBA-backed loans to businesses classed as real estate agents, property managers, mortgage lenders and inspectors 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 real estate businesses 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 cardReal estate across Missouri
Every Missouri market ranked →The highest-scoring counties in Missouri for real estate businesses, numbered among those based in Missouri, with St. Charles County marked.
Top counties in Missouri
| Market | Score | Listings | Per 10k households | Housing spending per listing (U.S. = 100) | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Andrew County, MO | 71 | 6 | 8.6 | 373 | +0.7% | #174 of 2,229 |
| 2Dallas County, MO | 69 | 7 | 10.3 | 270 | +5.2% | #229 of 2,229 |
| 3Ste. Genevieve County, MO | 66 | 5 | 7.0 | 447 | +1.1% | #324 of 2,229 |
| 4Lawrence County, MO | 63 | 22 | 15.1 | 195 | +3.7% | #458 of 2,229 |
| 5Warren County, MO | 63 | 31 | 22.4 | 148 | +9.2% | #473 of 2,229 |
| 6McDonald County, MO | 61 | 7 | 8.2 | 346 | +3.1% | #524 of 2,229 |
| 7Bates County, MO | 61 | 6 | 9.7 | 302 | +2.9% | #528 of 2,229 |
| 8Benton County, MO | 60 | 7 | 8.2 | 340 | +5.7% | #559 of 2,229 |
| 9Lincoln County, MO | 60 | 60 | 26.3 | 126 | +11.4% | #584 of 2,229 |
| 10Washington County, MO | 58 | 6 | 6.7 | 422 | +1.6% | #641 of 2,229 |
| 32St. Charles County, MO | 45 | 537 | 33.3 | 111 | +4.9% | #1,355 of 2,229 |
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
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many real estate businesses are in St. Charles County, MO?
St. Charles County has 537 real estate businesses on map listings as of September 2026. 33 of them (6%) are chain locations. The listings count real estate agents and brokers, property managers, mortgage brokers and lenders, and home inspectors. Official counts show 361 businesses with payroll classed as real estate agents, property managers, mortgage lenders and inspectors in 2023, up 14.6% from 2019. Official counts list 2,296 one-person businesses without payroll.
How much do households in St. Charles County, MO spend on rent and homeowner costs?
About $2.6B a year, or $16,029 per household. That is 4% below the U.S. average (an index of 96, where 100 is the U.S. average). For the 537 real estate businesses on map listings, housing spending per office is 11% above the U.S. figure. The spending figure is all rent and homeowner costs, a measure of housing demand, not money real estate businesses take in. 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 real estate businesses?
St. Charles County has 33.3 real estate businesses per 10,000 households, 14% below the U.S. rate of 38.5. The index of housing spending per office is 111, where 100 is the U.S. At the national ratio of real estate businesses to household spending, St. Charles County would have about 597, against 537 on map listings. There is one business with payroll in the industry for every 447 households, against one for every 414 across the U.S. The official count rose 14.6% from 2019 to 2023, against +15.8% 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 45 for real estate businesses (lower middle), #1,355 of 2,229 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 real estate businesses 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 real estate businesses · 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.