County profile · Montana
Lewis and Clark County, MT market data
How Lewis and Clark County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 75,331
- +5.8% since 2020
- Households
- 31,215
- Median household income
- $78,237
- +18.9% vs. 2015–2019, before inflation
- Median home value
- $393,500
- Jobs located here
- 41,168
- Highest market score
- 82
- Fast food and sandwich shops, #98 of 2,222 scored counties
A site report maps the competitors on map listings around any address in Lewis and Clark County by name and distance, and the households and spending within reach. Or open the report at the center of Lewis and Clark 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
Lewis and Clark County has an estimated 75,331 people and 31,215 households. Between 2020 and 2025, the population of Lewis and Clark County grew 5.8%, faster than the U.S. (+3.1%). Median household income in Lewis and Clark County is $78,237, 3% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 18.9%, before inflation.
Relative to the U.S., household spending in Lewis and Clark County runs highest on vehicle maintenance and repairs (an index of 117, where 100 is the U.S. average) and lowest on clothing, shoes and related services (87).
Of the business types scored in Lewis and Clark County, fast food and sandwich shops (82), pizza places (81) and convenience stores (78) have the highest Groundwork market scores. For fast food and sandwich shops, that ranks #98 of 2,222 scored counties.
Lewis and Clark County is part of the Helena metro area. Against the U.S., map listings per household run highest for property management companies (2.8 times the U.S. rate) and lowest for bakeries and dessert shops (38% below the U.S. rate).
All 56 business types in Lewis and Clark County
Highest Groundwork market score first. Each score compares Lewis and Clark 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 |
|---|---|---|---|---|---|---|---|
| Fast food and sandwich shops | 82 | #98 of 2,222 | 29 | 9.3 | $4.2M | 138 | 42 |
| Pizza | 81 | #68 of 2,090 | 19 | 6.1 | $6.4M | 127 | 42 |
| Convenience stores | 78 | #228 of 2,261 | 22 | 7.0 | $8.6M | 109 | Under 3 |
| Nail salons | 76 | #74 of 1,328 | 13 | 4.2 | $2.4M | 145 | Under 3 |
| Optometrists and eye care | 76 | #110 of 1,302 | 8 | 2.6 | $5M | 160 | 5 |
| Grocery and convenience stores | 76 | #268 of 2,402 | 48 | 15.4 | $3.9M | 116 | 17 |
| Mortgage brokers and lenders | 73 | #81 of 887 | 8 | 2.6 | Index only | 179 | 5 |
| Gas stations | 71 | #378 of 2,358 | 34 | 10.9 | $2.6M | 110 | 26 |
| Funeral homes | 69 | #254 of 1,472 | 5 | 1.6 | $838K | 123 | 3 |
| Primary care and pediatrics | 68 | #307 of 1,656 | 18 | 5.8 | $2.2M | 125 | 35 |
| Barbershops | 66 | #318 of 1,356 | 15 | 4.8 | $2.1M | 111 | Under 3 |
| Pet grooming and boarding | 66 | #341 of 1,461 | 19 | 6.1 | $1.6M | 63 | 4 |
| Bakeries and dessert shops | 66 | #357 of 1,889 | 19 | 6.1 | $6.4M | 156 | 26 |
| Grocery stores | 66 | #501 of 2,070 | 15 | 4.8 | $12.6M | 136 | 17 |
| Clothing, shoes and laundry | 66 | #503 of 2,210 | 49 | 15.7 | $1.1M | 129 | 10 |
| Clothing and shoe stores | 66 | #504 of 2,087 | 34 | 10.9 | $1.6M | 129 | 10 |
| Pet businesses | 65 | #489 of 2,200 | 43 | 13.8 | $707K | 80 | 16 |
| Pet stores | 63 | #275 of 974 | 7 | 2.2 | $4.3M | 96 | 3 |
| Veterinarians | 63 | #440 of 1,485 | 14 | 4.5 | $2.2M | 80 | 9 |
| Car washes and detailing | 62 | #409 of 1,451 | 12 | 3.8 | $2.9M | 115 | 8 |
| Sit-down restaurants | 62 | #662 of 2,405 | 142 | 45.5 | $863K | 130 | 66 |
| Restaurants and cafes | 62 | #688 of 2,405 | 293 | 93.9 | $418K | 113 | 135 |
| Martial arts and dance studios | 60 | #382 of 1,334 | 17 | 5.4 | $1.9M | 97 | 10 |
| Gyms | 60 | #523 of 1,792 | 24 | 7.7 | $1.4M | 106 | 19 |
| Collision repair and body shops | 58 | #496 of 1,327 | 14 | 4.5 | $2.5M | 81 | 8 |
| Tire shops | 57 | #603 of 1,530 | 13 | 4.2 | $2.7M | 107 | 11 |
| Hair salons | 57 | #837 of 2,339 | 73 | 23.4 | $430K | 100 | 19 |
| Roofing and gutters | 55 | #473 of 1,177 | 10 | 3.2 | $8.8M | 104 | 10 |
| Landscaping and lawn care | 54 | #611 of 1,493 | 16 | 5.1 | $2.6M | 87 | 37 |
| Lawn, cleaning and pest control | 53 | #746 of 1,771 | 23 | 7.4 | $1.8M | 106 | 72 |
| Salons, barbers and spas | 53 | #1,020 of 2,385 | 142 | 45.5 | $221K | 104 | 30 |
| Spas and skin care | 52 | #826 of 1,769 | 40 | 12.8 | $785K | 90 | 7 |
| Auto repair and car care | 51 | #1,185 of 2,401 | 130 | 41.6 | $268K | 100 | 72 |
| Gyms, studios and classes | 48 | #1,176 of 2,088 | 58 | 18.6 | $571K | 86 | 29 |
| House cleaning | 47 | #477 of 847 | 6 | 1.9 | $6.8M | 106 | 35 |
| Auto repair shops | 47 | #1,341 of 2,378 | 87 | 27.9 | $401K | 90 | 50 |
| HVAC and plumbing | 46 | #996 of 1,707 | 22 | 7.0 | $4M | 84 | 45 |
| Child care and preschools | 45 | #967 of 1,611 | 34 | 10.9 | $588K | 59 | 25 |
| Coffee shops and cafes | 41 | #1,359 of 2,063 | 47 | 15.1 | $2.6M | 70 | 26 |
| Insurance agencies | 41 | #1,436 of 2,272 | 66 | 21.1 | $957K | 76 | 32 |
| Home repair trades | 41 | #1,447 of 2,057 | 47 | 15.1 | $1.9M | 77 | 91 |
| Property management | 40 | #629 of 910 | 26 | 8.3 | Index only | 39 | 19 |
| Dentists and orthodontists | 39 | #1,327 of 1,886 | 42 | 13.5 | $955K | 97 | 51 |
| Real estate agents and brokers | 38 | #1,711 of 2,176 | 137 | 43.9 | Index only | 75 | 79 |
| Real estate | 38 | #1,749 of 2,229 | 172 | 55.1 | Index only | 75 | 121 |
| Yoga, Pilates and fitness studios | 35 | #636 of 777 | 17 | 5.4 | $1.9M | 48 | 19 |
| Chiropractors | 35 | #1,153 of 1,490 | 26 | 8.3 | $1.5M | 64 | 23 |
| Doctors, dentists and clinics | 35 | #1,907 of 2,394 | 343 | 109.9 | $117K | 77 | 142 |
| Electricians | 34 | #932 of 1,160 | 15 | 4.8 | $5.9M | 49 | 36 |
| Urgent care and walk-in clinics | 31 | #276 of 325 | 5 | 1.6 | $8M | 33 | 4 |
| Physical therapy | 30 | #1,222 of 1,422 | 40 | 12.8 | $1M | 42 | 24 |
| Laundromats | Not scored | Not scored | 3 | 1.0 | $18.6M | 149 | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 3 | 1.0 | $11.6M | 85 | 3 |
| Dry cleaners | Not scored | Not scored | 2 | 0.6 | $27.9M | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 1 | 0.3 | Index only | Too few | 5 |
| Pest control | Not scored | Not scored | 1 | 0.3 | $40.8M | Too few | Under 3 |
Household spending in Lewis and Clark 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 | $34.9M | $1,116 | 117 |
| Gasoline and other fuels | $89.1M | $2,853 | 110 |
| Food away from home | $122.5M | $3,925 | 96 |
| Groceries | $189.2M | $6,062 | 96 |
| Personal care products and services | $31.4M | $1,006 | 100 |
| Child care and other personal services | $20M | $640 | 110 |
| Memberships, classes and admissions | $33.1M | $1,061 | 108 |
| Medical and dental services | $40.1M | $1,285 | 100 |
| Pets | $30.4M | $974 | 107 |
| Clothing, shoes and related services | $55.7M | $1,786 | 87 |
| Vehicle insurance | $63.2M | $2,023 | 103 |
| Home repairs, maintenance and insurance | $88M | $2,820 | 93 |
| Lawn care, cleaning and other household services | $40.8M | $1,307 | 92 |
| Rent and homeowner costs | $557.6M | $17,864 | 107 |
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 Lewis and Clark County
- Population, 2025 estimate
- 75,331+5.8% since 2020
- Households
- 31,215
- Median age
- 42.1
- Homes lived in by their owners
- 70%
- Vehicles per household
- 2.0
- Land area
- 3,458 sq. mi.
- People per square mile
- 21
- Median household income
- $78,237+18.9% vs. 2015–2019, before inflation
- Average household income
- $104,055
- Median home value
- $393,500
- Jobs located here
- 41,168
- Daytime population
- 78,294Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Lewis and Clark 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 Lewis and Clark County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
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Questions
How fast is Lewis and Clark County, MT growing?
Population estimates put Lewis and Clark County at 75,331 people in 2025, up 5.8% since 2020, faster than the U.S. (+3.1%). It has 31,215 households. Median household income rose 18.9% from the 2015–2019 survey, before inflation.
How much do households in Lewis and Clark County, MT spend?
Households in Lewis and Clark County spend about $557.6M a year on rent and homeowner costs, $189.2M on groceries and $122.5M on food away from home. Set against the U.S., households in Lewis and Clark County spend the most on vehicle maintenance and repairs (an index of 117, where 100 is the U.S. average) and the least on clothing, shoes and related services (87).
Which business types have the highest market scores in Lewis and Clark County, MT?
The highest Groundwork market scores in Lewis and Clark County are for fast food and sandwich shops (82), pizza places (81) and convenience stores (78). Lewis and Clark County ranks #98 of 2,222 scored counties for fast food and sandwich shops.
How does Lewis and Clark County, MT compare with the U.S.?
The median household income in Lewis and Clark County is $78,237 a year, 3% below the U.S. median of $80,734. The population rose 5.8% from 2020 to 2025, against +3.1% for the U.S. The median home value is $393,500, against $332,700 for the U.S. For its number of households, Lewis and Clark County has the most map listings, relative to the U.S., for property management companies (2.8 times the U.S. rate) and the fewest for bakeries and dessert shops (38% 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. 51 of the 56 business types have a score in Lewis and Clark 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 Lewis and Clark 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 Lewis and Clark 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 Lewis and Clark 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.