Groundwork

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Insurance agencies in St. Louis County, MO

Competitor counts, household spending and official business counts for insurance agencies in St. Louis County, MO, set against other counties and the U.S.

Groundwork market score · out of 100

Score 7 out of 100: Very low

Ranked #2,267 of 2,272 scored counties
#85 of 85 scored counties in Missouri

Listings
1,004
187 chain locations (19%)
Official establishments
705
−7.2% since 2019
Household spending a year
$619.4M
On vehicle insurance · $1,497 a household
Spending per listing
$617K
51% below the U.S.
Listings per 10k households
24.3
56% above the U.S.
Population, 2025
990,911
−1.2% since 2020

See the insurance agencies around any address in St. Louis County

The site report maps the insurance agencies 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. Louis 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

The Groundwork market score for insurance agencies in St. Louis County is 7 (very low), #2,267 of 2,272 scored counties and #85 of 85 scored counties in Missouri. That puts it in the bottom quarter of counties.

Map listings as of September 2026 show 1,004 insurance agencies in St. Louis County. Chain locations make up 19% of them, against 21% across the U.S. That is 24.3 per 10,000 households, 56% above the U.S. rate of 15.6.

Household spending on vehicle insurance in St. Louis County comes to about $619.4M a year: $1,497 per household, 24% below the U.S. average. That works out to $617K per agency, 51% below the U.S. figure of $1.3M.

In 2023, official counts showed 705 businesses with payroll in St. Louis County classed as insurance agencies and brokerages, down 7.2% from 2019. That is one for every 587 households, against one for every 966 across the U.S. Since fiscal 2022, 9 SBA-backed loans worth $2.8M have gone to businesses classed as insurance agencies and brokerages in St. Louis County. Population estimates put the population change in St. Louis County from 2020 to 2025 at −1.2%, against +3.1% for the U.S.

How St. Louis County compares

The same measures for Missouri and the whole U.S. Spending per listing divides a year of household spending on all vehicle insurance by the insurance agencies counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Insurance agencies in St. Louis County, MO compared with Missouri and the U.S.
MeasureSt. Louis CountyMissouriU.S.
Listings per 10k households24.320.115.6
Spending per listing$617K$810K$1.3M
Households per official establishment587753966
Official establishment growth, 2019–2023−7.2%−1.3%−1.0%
Population growth, 2020–2025−1.2%+1.9%+3.1%
Spending per household on vehicle insurance$1,497$1,625$1,957
Median household income$82,936$70,702$80,734
Groundwork market score719

Official counts and lending

Businesses

Official establishments, 2019 to 2023
760 → 705−7.2% over the period
Employees, 2023
4,386
Annual payroll, 2023
$404.2M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
1,004187 chain locations
Listings at the U.S. rate for this spending
493The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
9
Amount
$2.8M

SBA-backed loans to businesses classed as insurance agencies and brokerages in St. Louis 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. Louis County

Population, 2025 estimate
990,911−1.2% since 2020
Households
413,849
Median age
41.2
Homes lived in by their owners
69%
Vehicles per household
1.7
Land area
509 sq. mi.
People per square mile
1,958
Median household income
$82,936+23.0% vs. 2015–2019, before inflation
Average household income
$123,036
Median home value
$276,800
Jobs located here
655,776
Daytime population
1,175,839Residents who don’t work, plus everyone whose job is here

Looking at a specific site in St. Louis 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 insurance agencies on map listings by name and distance.

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

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Insurance agencies across Missouri

Every Missouri market ranked →

The highest-scoring counties in Missouri for insurance agencies, numbered among those based in Missouri, with St. Louis County marked.

Top counties in Missouri

Counties in Missouri ranked for insurance agencies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Washington County, MO6677.8$2.2M+1.6%#584 of 2,272
2Lincoln County, MO623013.1$1.5M+11.4%#736 of 2,272
3McDonald County, MO601011.7$1.5M+3.1%#786 of 2,272
4Andrew County, MO59710.0$1.9M+0.7%#802 of 2,272
5Dallas County, MO57811.8$1.6M+5.2%#881 of 2,272
6Crawford County, MO561010.4$1.7M−0.4%#909 of 2,272
7Newton County, MO552712.2$1.5M+6.1%#961 of 2,272
8Pulaski County, MO531911.3$1.5M+0.8%#1,019 of 2,272
9Ray County, MO531415.4$1.2M+1.1%#1,029 of 2,272
10Ste. Genevieve County, MO521014.0$1.5M+1.1%#1,044 of 2,272
85St. Louis County, MO71,00424.3$617K−1.2%#2,267 of 2,272

Other business types in St. Louis County

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

Questions

How many insurance agencies are in St. Louis County, MO?

There are 1,004 insurance agencies on map listings in St. Louis County as of September 2026. 187 of them (19%) are chain locations. The listings count insurance agencies. Official counts show 705 businesses with payroll classed as insurance agencies and brokerages in 2023, down 7.2% from 2019.

How much do households in St. Louis County, MO spend on vehicle insurance?

About $619.4M a year, or $1,497 per household. That is 24% below the U.S. average (an index of 76, where 100 is the U.S. average). Spread across the 1,004 insurance agencies on map listings, it comes to $617K per agency. It is estimated from the incomes of the 413,849 households in St. Louis County and national spending patterns by income.

How does St. Louis County, MO compare with the U.S. for insurance agencies?

St. Louis County has 24.3 insurance agencies per 10,000 households, 56% above the U.S. rate of 15.6. Spending per agency is $617K, 51% below the U.S. figure of $1.3M. At the national ratio of insurance agencies to household spending, St. Louis County would have about 493, against 1,004 on map listings. There is one business with payroll in the industry for every 587 households, against one for every 966 across the U.S. The official count fell 7.2% from 2019 to 2023, against −1.0% for the U.S.

How fast is St. Louis County, MO growing?

Population estimates put St. Louis County at 990,911 people in 2025, down 1.2% since 2020, against +3.1% for the U.S. It has 413,849 households. The median household income in St. Louis County is $82,936 a year, 3% above the U.S. median of $80,734. That rose 23.0% 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. Louis County scores 7 for insurance agencies (very low), #2,267 of 2,272 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in St. Louis County. It maps the insurance agencies 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 insurance agencies · All 56 business types in St. Louis County

Screening a site or an acquisition in St. Louis 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. Louis 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.