Groundwork

Pets · County · Missouri

Pet stores in Jefferson County, MO

How Jefferson County, MO compares with other counties and the U.S. for pet stores: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 75 out of 100: High

Ranked #101 of 974 scored counties
#1 of 23 scored counties in Missouri

Listings
14
6 chain locations (43%)
Official establishments
3
Businesses with payroll, 2023
Household spending a year
$76.8M
On pets · $869 a household
Spending per listing
$5.5M
21% above the U.S.
Listings per 10k households
1.6
20% below the U.S.
Population, 2025
233,132
+2.7% since 2020

See the pet stores around any address in Jefferson 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 Jefferson County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

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

What this means

At $869 per household (4% below the U.S. average), households in Jefferson County spend about $76.8M a year on pets. Spread across 14 pet stores, that is $5.5M per store, 21% above the U.S. figure of $4.5M. The spending figure covers all pets, not only pet stores.

There are 14 pet stores on map listings in Jefferson County as of September 2026. 6 of them (43%) are chain locations, against 38% across the U.S. That comes to 1.6 for every 10,000 households, 20% below the U.S. rate of 2.0.

Official counts show 3 businesses with payroll classed as pet and pet supplies stores in Jefferson County in 2023. That is one for every 29,436 households, against one for every 13,024 across the U.S.

Population estimates show Jefferson County grew 2.7% from 2020 to 2025, in step with the U.S. (+3.1%). The Groundwork market score for pet stores in Jefferson County is 75 (high), #101 of 974 scored counties and #1 of 23 scored counties in Missouri. That puts it in the top quarter of counties.

How Jefferson 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.

Pet stores in Jefferson County, MO compared with Missouri and the U.S.
MeasureJefferson CountyMissouriU.S.
Listings per 10k households1.62.02.0
Spending per listing$5.5M$4.1M$4.5M
Households per official establishment29,43613,48513,024
Official establishment growth, 2019–2023n/a−2.1%−1.6%
Population growth, 2020–2025+2.7%+1.9%+3.1%
Spending per household on pets$869$825$909
Median household income$82,851$70,702$80,734
Groundwork market score7535

Official counts and lending

Businesses

Official establishments, 2019 to 2023
4 → 3
Employees, 2023
43
Annual payroll, 2023
$1.4M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
146 chain locations
Listings at the U.S. rate for this spending
17The 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 pet and pet supplies stores in Jefferson 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 Jefferson County

Population, 2025 estimate
233,132+2.7% since 2020
Households
88,309
Median age
40.8
Homes lived in by their owners
82%
Vehicles per household
2.0
Land area
656 sq. mi.
People per square mile
350
Median household income
$82,851+26.6% vs. 2015–2019, before inflation
Average household income
$98,813
Median home value
$237,200
Jobs located here
48,697
Daytime population
165,339Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Jefferson 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 Jefferson County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Pet stores across Missouri

Every Missouri market ranked →

The highest-scoring counties in Missouri for pet stores, numbered among those based in Missouri, with Jefferson County marked.

Top counties in Missouri

Counties in Missouri ranked for pet stores by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Jefferson County, MO75141.6$5.5M+2.7%#101 of 974
2Cass County, MO7171.6$5.6M+7.1%#154 of 974
3Jackson County, MO61501.6$5M+2.1%#297 of 974
4St. Louis city, MO60141.0$7.7M−7.4%#306 of 974
5Clay County, MO60181.8$5.2M+4.3%#311 of 974
6Boone County, MO60152.0$4.3M+4.2%#318 of 974
7Platte County, MO52133.0$3.4M+6.7%#447 of 974
8Christian County, MO51102.8$3M+8.3%#472 of 974
9St. Louis County, MO50771.9$5.1M−1.2%#477 of 974
10St. Charles County, MO50483.0$3.5M+4.9%#486 of 974

Other business types in Jefferson County

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

Questions

How many pet stores are in Jefferson County, MO?

As of September 2026, map listings count 14 pet stores in Jefferson County. 6 of them (43%) are chain locations. The listings count pet stores. Official counts show 3 businesses with payroll classed as pet and pet supplies stores in 2023.

How much do households in Jefferson County, MO spend on pets?

About $76.8M a year, or $869 per household. That is 4% below the U.S. average (an index of 96, where 100 is the U.S. average). Spread across the 14 pet stores on map listings, it comes to $5.5M 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 88,309 households in Jefferson County and national spending patterns by income.

How does Jefferson County, MO compare with the U.S. for pet stores?

Jefferson County has 1.6 pet stores per 10,000 households, 20% below the U.S. rate of 2.0. Spending per store is $5.5M, 21% above the U.S. figure of $4.5M. At the U.S. ratio of pet stores to household spending, Jefferson County would have about 17, against 14 on map listings. There is one business with payroll in the industry for every 29,436 households, against one for every 13,024 across the U.S.

How fast is Jefferson County, MO growing?

Population estimates put Jefferson County at 233,132 people in 2025, up 2.7% since 2020, in step with the U.S. (+3.1%). It has 88,309 households. The median household income in Jefferson County is $82,851 a year, 3% above the U.S. median of $80,734. That rose 26.6% 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. Jefferson County scores 75 for pet stores (high), #101 of 974 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Jefferson 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 Jefferson County

Screening a site or an acquisition in Jefferson 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 Jefferson 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.