County profile · Montana
Jefferson County, MT market data
How Jefferson County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 13,329
- +9.8% since 2020
- Households
- 4,996
- Median household income
- $95,490
- +37.1% vs. 2015–2019, before inflation
- Median home value
- $446,900
- Jobs located here
- 2,743
- Highest market score
- 96
- Auto repair shops, #1 of 2,378 scored counties
A site report maps the competitors on map listings around any address in Jefferson County by name and distance, and the households and spending within reach. 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 cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
Jefferson County has an estimated 13,329 people and 4,996 households. Between 2020 and 2025, the population of Jefferson County grew 9.8%, faster than the U.S. (+3.1%). Median household income in Jefferson County is $95,490, 18% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 37.1%, before inflation.
Relative to the U.S., household spending in Jefferson County runs highest on vehicle maintenance and repairs (an index of 159, where 100 is the U.S. average) and lowest on clothing, shoes and related services (97).
Of the business types scored in Jefferson County, auto repair shops (96); salons, barbers and spas (95); and hair salons (95) have the highest Groundwork market scores. For auto repair shops, that ranks #1 of 2,378 scored counties.
Jefferson County is part of the Helena metro area. Against the U.S., map listings per household run highest for pet businesses (2.3 times the U.S. rate) and lowest for medical and dental practices (41% below the U.S. rate).
All 56 business types in Jefferson County
Highest Groundwork market score first. Each score compares Jefferson County with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Auto repair shops | 96 | #1 of 2,378 | 7 | 14.0 | $1.1M | 244 | 3 |
| Salons, barbers and spas | 95 | #3 of 2,385 | 8 | 16.0 | $691K | 325 | Under 3 |
| Hair salons | 95 | #3 of 2,339 | 5 | 10.0 | $1.1M | 257 | Under 3 |
| Auto repair and car care | 94 | #7 of 2,401 | 13 | 26.0 | $584K | 217 | 5 |
| Gyms, studios and classes | 86 | #25 of 2,088 | 8 | 16.0 | $810K | 122 | Under 3 |
| Restaurants and cafes | 85 | #62 of 2,405 | 35 | 70.1 | $623K | 168 | 18 |
| Pizza | 80 | #91 of 2,090 | 5 | 10.0 | $4.4M | 86 | 4 |
| Gas stations | 79 | #180 of 2,358 | 8 | 16.0 | $2.4M | 99 | 5 |
| Sit-down restaurants | 76 | #220 of 2,405 | 19 | 38.0 | $1.1M | 173 | 10 |
| Grocery and convenience stores | 74 | #339 of 2,402 | 11 | 22.0 | $2.9M | 86 | Under 3 |
| Doctors, dentists and clinics | 66 | #486 of 2,394 | 25 | 50.0 | $279K | 183 | 18 |
| Gyms | 64 | #410 of 1,792 | 7 | 14.0 | $925K | 71 | Under 3 |
| Pet businesses | 55 | #886 of 2,200 | 12 | 24.0 | $455K | 52 | Under 3 |
| Coffee shops and cafes | Not scored | Not scored | 4 | 8.0 | $5.5M | 147 | 4 |
| Convenience stores | Not scored | Not scored | 4 | 8.0 | $8M | 102 | Under 3 |
| Fast food and sandwich shops | Not scored | Not scored | 4 | 8.0 | $5.5M | 179 | 4 |
| Pet grooming and boarding | Not scored | Not scored | 4 | 8.0 | $1.4M | 54 | Under 3 |
| Real estate | Not scored | Not scored | 4 | 8.0 | Index only | 556 | 4 |
| Real estate agents and brokers | Not scored | Not scored | 4 | 8.0 | Index only | 442 | 4 |
| Clothing, shoes and laundry | Not scored | Not scored | 3 | 6.0 | $3.3M | 376 | Under 3 |
| Dentists and orthodontists | Not scored | Not scored | 3 | 6.0 | $2.3M | 236 | 4 |
| Grocery stores | Not scored | Not scored | 3 | 6.0 | $10.7M | 115 | Under 3 |
| Home repair trades | Not scored | Not scored | 3 | 6.0 | $5.2M | 213 | 18 |
| HVAC and plumbing | Not scored | Not scored | 3 | 6.0 | $5.2M | 109 | 12 |
| Physical therapy | Not scored | Not scored | 3 | 6.0 | $2.3M | 97 | 6 |
| Spas and skin care | Not scored | Not scored | 3 | 6.0 | $1.8M | 210 | Under 3 |
| Bakeries and dessert shops | Not scored | Not scored | 2 | 4.0 | $10.9M | Too few | 4 |
| Child care and preschools | Not scored | Not scored | 2 | 4.0 | $2M | Too few | 5 |
| Clothing and shoe stores | Not scored | Not scored | 2 | 4.0 | $5M | Too few | Under 3 |
| Funeral homes | Not scored | Not scored | 2 | 4.0 | $356K | Too few | Under 3 |
| Landscaping and lawn care | Not scored | Not scored | 2 | 4.0 | $3.6M | Too few | 6 |
| Lawn, cleaning and pest control | Not scored | Not scored | 2 | 4.0 | $3.6M | Too few | 9 |
| Pet stores | Not scored | Not scored | 2 | 4.0 | $2.7M | Too few | Under 3 |
| Veterinarians | Not scored | Not scored | 2 | 4.0 | $2.7M | Too few | Under 3 |
| Collision repair and body shops | Not scored | Not scored | 1 | 2.0 | $7.6M | Too few | Under 3 |
| Insurance agencies | Not scored | Not scored | 1 | 2.0 | $13.3M | Too few | Under 3 |
| Laundromats | Not scored | Not scored | 1 | 2.0 | $9.9M | Too few | Under 3 |
| Martial arts and dance studios | Not scored | Not scored | 1 | 2.0 | $6.5M | Too few | Under 3 |
| Optometrists and eye care | Not scored | Not scored | 1 | 2.0 | $7M | Too few | Under 3 |
| Tire shops | Not scored | Not scored | 1 | 2.0 | $7.6M | Too few | Under 3 |
| Barbershops | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Car washes and detailing | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Chiropractors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Electricians | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 6 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| House cleaning | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Nail salons | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Pest control | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Primary care and pediatrics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 8 |
| Property management | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Roofing and gutters | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Jefferson County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $7.6M | $1,519 | 159 |
| Gasoline and other fuels | $18.9M | $3,780 | 146 |
| Food away from home | $21.8M | $4,368 | 107 |
| Groceries | $32.1M | $6,424 | 102 |
| Personal care products and services | $5.5M | $1,106 | 110 |
| Child care and other personal services | $4M | $797 | 137 |
| Memberships, classes and admissions | $6.5M | $1,297 | 132 |
| Medical and dental services | $7M | $1,396 | 108 |
| Pets | $5.5M | $1,093 | 120 |
| Clothing, shoes and related services | $9.9M | $1,988 | 97 |
| Vehicle insurance | $13.3M | $2,659 | 136 |
| Home repairs, maintenance and insurance | $15.5M | $3,104 | 103 |
| Lawn care, cleaning and other household services | $7.2M | $1,436 | 102 |
| Rent and homeowner costs | $96.4M | $19,297 | 116 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
Population and households in Jefferson County
- Population, 2025 estimate
- 13,329+9.8% since 2020
- Households
- 4,996
- Median age
- 45.7
- Homes lived in by their owners
- 84%
- Vehicles per household
- 2.6
- Land area
- 1,657 sq. mi.
- People per square mile
- 8
- Median household income
- $95,490+37.1% vs. 2015–2019, before inflation
- Average household income
- $123,428
- Median home value
- $446,900
- Jobs located here
- 2,743
- Daytime population
- 10,190Residents 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 competitors on map listings by name and distance, for any of the 56 business types.
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 cardRelated markets
Nearest counties in Montana 8
- Broadwater County, MT7,668 people
- Lewis and Clark County, MT73,464 people
- Silver Bow County, MT35,785 people
- Powell County, MT7,053 people
- Deer Lodge County, MT9,597 people
- Meagher County, MT2,007 people
- Madison County, MT9,223 people
- Gallatin County, MT124,074 people
Questions
How fast is Jefferson County, MT growing?
Population estimates put Jefferson County at 13,329 people in 2025, up 9.8% since 2020, faster than the U.S. (+3.1%). It has 4,996 households. Median household income rose 37.1% from the 2015–2019 survey, before inflation.
How much do households in Jefferson County, MT spend?
Households in Jefferson County spend about $96.4M a year on rent and homeowner costs, $32.1M on groceries and $21.8M on food away from home. Set against the U.S., households in Jefferson County spend the most on vehicle maintenance and repairs (an index of 159, where 100 is the U.S. average) and the least on clothing, shoes and related services (97).
Which business types have the highest market scores in Jefferson County, MT?
The highest Groundwork market scores in Jefferson County are for auto repair shops (96); salons, barbers and spas (95); and hair salons (95). Jefferson County ranks #1 of 2,378 scored counties for auto repair shops.
How does Jefferson County, MT compare with the U.S.?
The median household income in Jefferson County is $95,490 a year, 18% above the U.S. median of $80,734. The population rose 9.8% from 2020 to 2025, against +3.1% for the U.S. The median home value is $446,900, against $332,700 for the U.S. For its number of households, Jefferson County has the most map listings, relative to the U.S., for pet businesses (2.3 times the U.S. rate) and the fewest for medical and dental practices (41% below the U.S. rate).
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. 13 of the 56 business types have a score in Jefferson County, each ranked against other 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 competitors 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.
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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.