Lewis and Clark County, MT

County Profile

73,464 residents. Safety, jobs, income, housing cost, climate and natural-hazard risk for Lewis and Clark County, MT.

Several figures AreaProfile publishes are measured by county and nowhere finer — death rates by intent among them. On this page those describe the geography they are printed on, which is not true of the city and ZIP pages that inherit them.

78out of 100
Area Score
Top 4% of 1,225 profiles measured

How we calculate this

How this area ranks
OpportunityTop 4% of 1,255 counties measured84
GrowthTop 3% of 1,226 counties measured83
Housing affordability987th of 1,255 counties measured77
Climate1072nd of 1,254 counties measured57
Physical resilienceTop 20% of 1,255 counties measured81
Access708th of 1,255 counties measured79
Economic stabilityTop 19% of 1,255 counties measured82
The quick read

Lewis and Clark County ranks in the top 4% of published profiles for employment opportunity, with unemployment at 3.1% and median household income of $78,237.

Development activity is both elevated and accelerating — 570 housing units permitted over the past twelve months, up 28% on the prior year.

Natural-hazard exposure is lower than in most comparable published profiles, placing Lewis and Clark County in the top 20% for physical resilience.

At a glance

Population
73,464
2024 ACS 5-Year
Median household income
$78,237
Top 20% nationally
Density
21/sq mi
3458.4 sq mi of land
Median age
41.8
2024 ACS 5-Year
County
Lewis and Clark County
Montana
Metro area
Helena, MT
Nearest major airport
HLN
40 mi · Helena Rgnl
Median home value
$393,500
2024 ACS 5-Year

Jobs & opportunity

Unemployment of 3.1% is lower than 92% of the 1,255 measured US locations.

Employment grew 0.9% over the past year, to 36,780 employed residents.

43% of adults hold a four-year degree, higher than 94% of measured US locations.

MetricValueCompared nationallySource period
Median household income ±$3,203$78,237Top 20%of 3,2222024 ACS 5-Year
Per capita income ±$1,572$44,837Top 13%of 3,2222024 ACS 5-Year
Poverty rate8.1%Bottom 12%of 3,2222024 ACS 5-Year
Average commute19.5 minBottom 13%of 3,2222024 ACS 5-Year
Bachelor's degree or higher43.0%Top 6%of 3,2222024 ACS 5-Year
Employment36,780Bottom 46%of 1,255June 2026
Employment change (3 years)1.7%Top 33%of 1,255June 2026
Employment change (year over year)0.9%Top 16%of 1,255June 2026
Labor force37,948Bottom 46%of 1,255June 2026
Labor force participation63.9%Top 23%of 3,2222024 ACS 5-Year
Unemployment change (year over year)0.2%Top 40%of 1,255June 2026
Unemployment rate3.1%Bottom 8%of 1,255June 2026
Unemployment rate
2021/062022/032022/122023/092024/062025/032025/102026/063.72.0
Monthly unemployment rate from the Bureau of Labor Statistics, most recent value 3.1% in June 2026. A break in the line is a month the Bureau of Labor Statistics did not publish for this area — it is left empty rather than estimated.
Median household income, successive ACS releases
202120222023202478k66k
Each point is a separate five-year estimate, most recently $78,237 in the 2024 ACS 5-Year. Consecutive releases share four years of sample, so AreaProfile shows them as a record of successive estimates and does not compute a year-over-year change from them.
Largest occupations — Helena, MT
OccupationPeople employedMedian annual wage
Business Operations Specialists, All Other1,420$80,410
Retail Salespersons1,130$35,990
Fast Food and Counter Workers1,060$28,330
Office Clerks, General1,010$46,450
Registered Nurses990$98,690
Home Health and Personal Care Aides960$36,570

Occupational employment and wages are published for metropolitan areas rather than for individual cities or ZIP areas, so these describe the wider labor market this location sits in. 2025 OEWS, U.S. Bureau of Labor Statistics.

36% of students met the state standard in mathematics and 50% in reading, across the schools here that reported results.

There are 16.3 students for every full-time teacher, more than in most measured places.

Public schools
29
2024-25 school year
Students per teacher
16.3
across all schools here
Math proficiency
36.1%
Reading proficiency
49.8%
SchoolDistrictStudentsPer teacherMathReading
Capital High SchoolHelena H S1,29316.4
Helena High SchoolHelena H S97915.8
C R Anderson Middle SchlHelena Elem96216.642%62%
Helena Middle SchoolHelena Elem70117.132%47%
East Helena High SchoolEast Helena K-1256322.5
Four Georgians SchoolHelena Elem48217.241%48%
Jim Darcy SchoolHelena Elem47318.925%46%
East Valley Middle SchoolEast Helena K-1247121.432%37%
Radley Elementary SchoolEast Helena K-1242820.443%45%
Rossiter SchoolHelena Elem36917.629%49%
Bryant SchoolHelena Elem28814.415%28%
Warren SchoolHelena Elem27616.241%51%

38.0% of students here are eligible for free or reduced-price lunch. That describes the circumstances families arrive with rather than how the schools perform, which is why AreaProfile shows it and does not score it.

Public schools only, from the NCES Common Core of Data. Schools are placed by ZIP code, so this is which schools are in this place rather than which one a particular address is zoned for — district boundaries do not follow municipal ones, and enrollment zones change. Fully virtual schools are excluded: they enroll students from across the state while reporting one administrative address, and counting them here would describe a school population this place does not have. The assessment covers grades 3 through 8, so a high school shows no proficiency figure — a dash in those columns means the test was not given at that school, not that it performed badly. Proficiency is measured against Montana’s own standard, so it compares cleanly within the state and only broadly against other states; AreaProfile therefore ranks it within state. The directory is current, while the proficiency figures are from the last school year with national coverage before the pandemic interrupted testing.

Housing & affordability

How it’s calculated →

Median rent of $1,102 takes 17% of median household income, below the 30% threshold at which a household is considered cost-burdened.

A median home costs 5.0 times median household income here, well above the historic benchmark, at a level conventionally described as seriously unaffordable.

Rent as a share of income
16.9%
Below the 30% cost-burdened threshold
Home price to income
5.0×
median home value ÷ median income
Median gross rent
$1,102
2024 ACS 5-Year
Median home value
$393,500
2024 ACS 5-Year
MetricValueCompared nationallySource period
Home price to income5.03Top 9%of 3,2192024 ACS 5-Year
Homeownership rate70.1%Bottom 29%of 3,2222024 ACS 5-Year
Housing units ±5634,082Top 24%of 3,2222024 ACS 5-Year
Median gross rent ±$46$1,102Top 22%of 3,2162024 ACS 5-Year
Median home value ±$9,364$393,500Top 9%of 3,2192024 ACS 5-Year
Rent as a share of income16.9%Bottom 49%of 3,2162024 ACS 5-Year
Vacancy rate8.4%Bottom 21%of 3,2222024 ACS 5-Year

Both affordability measures come from the same ACS release as the income they are compared with, so the comparison is like for like. They describe housing cost against local earnings and are not a cost-of-living index — transport, groceries, healthcare, insurance and taxes are not included, and a place can look affordable here and still be expensive to live in for reasons this does not capture.

Growth & development

How it’s calculated →
Development Momentum
83/ 100
Top 3% of 1,226 published city profiles
Permitting is decreasing, measured from 2022 to 2025.

An AreaProfile calculation combining permit volume per resident, its direction over one and three years, population change and employment growth. Permit volume alone is not the measure.

Population has grown 6% since 2020, reaching 75,129 in 2024.

Permitting has turned downward after moving the other way the year before.

Population is still rising, but more slowly than in the preceding year.

At 7.8 permitted units per 1,000 residents, building activity is above the median for measured US locations.

Units permitted
570
12 months ending July 2026
Per 1,000 residents
7.8
Top 14% nationally
Year over year
+28%
vs the prior twelve months
Multifamily share
52.5%
units in 5+ unit buildings
Population, annual estimates
2020202120222023202475k71k
Census Population Estimates Program, July 1 of each year. These annual estimates are designed for year-over-year comparison, unlike the ACS five-year figure shown as this profile's population.
Housing units permitted per year
202220232024202545691
Annual totals from the Census Building Permits Survey. Permitting in 2025 was higher than 2022 (+169%).

Weather & climate

4 of the twelve months have a normal average temperature between 55°F and 80°F. July averages a high of 82°F and January a low of 17°F.

Normal annual precipitation is 17.1 inches.

Air quality measures a median index of 46, in the Good band, and about 6 days a year pass 100, the threshold at which the air is unhealthy for sensitive groups.

10°30°50°70°90°JFMAMJJASOND
Solid line: normal daily high. Dashed line: normal daily low. 1991-2020 normals from NOAA station ROGERS PASS 9 NNE, 6.4 miles from this location.
Precipitation
JFMAMJJASOND3.1"
Normal monthly precipitation, in inches.
MetricValueSource period
90th percentile air quality index73.02024 calendar year
Annual precipitation17.1"1991-2020 Normals
Average January low17°F1991-2020 Normals
Average July high82°F1991-2020 Normals
Comfortable months41991-2020 Normals
Days above AQI 10062024 calendar year
Median air quality index46.02024 calendar year
Seasonal temperature swing40°F1991-2020 Normals
Air quality
Median air quality index
46
Good on a typical day
Worst tenth of days
73
90th percentile index
Days above 100
6
unhealthy for sensitive groups

A comfortable median and a bad tail are different problems. Wildfire smoke and summer ozone show up in the worst tenth of days, not in the middle of the year.

Climate figures are thirty-year normals, not current conditions. They describe what a typical year looks like rather than what the weather is doing today. Air quality is measured rather than modelled, by EPA monitors, and published by county only where a monitor sits — roughly half the counties AreaProfile publishes have one, and the rest show nothing rather than an estimate. Air masses are regional, so a county reading describes the air over a place reasonably well, but it is still the county reading.

Physical risk

81 / 100
Physical resilience

The hazards accounting for most of this area's expected annual loss are earthquake and wildfire.

WildfireElevated
EarthquakeElevated

Low or minimal exposure: winter weather, landslide, cold wave, avalanche, lightning, inland flooding, heat wave, drought, strong wind, ice storm, hail, tornado.

Hazard ratings are AreaProfile calculations derived from the FEMA National Risk Index v1.20.0 (December 2025). FEMA National Risk Index county record. FEMA does not endorse this presentation. Higher physical resilience means lower exposure.

These are deaths, not offences. AreaProfile does not publish reported crime, and this is not a substitute for it — it says nothing about burglary, theft or assault.

Lewis and Clark County records 3.5 homicide deaths per 100,000 residents a year, near the middle of counties measured. The CDC does not publish this below county level.

Firearm deaths of all intents run at 25.3 per 100,000 — more than the homicide rate, because nationally most firearm deaths are suicides.

Drug overdose deaths run at 11.3 per 100,000 residents in Lewis and Clark County.

Homicide
3.5
per 100,000 residents · under 10 deaths
Firearm deaths, all intents
25.3
per 100,000 residents
Drug overdose
11.3
per 100,000 residents · under 10 deaths
Suicide
30.7
per 100,000 residents

Firearm deaths count every intent together, and nationally the majority are suicides rather than homicides. The two columns overlap and should not be added.

Age-adjusted rates from provisional death certificate records, published by the CDC for Lewis and Clark County as a whole — these rates are not published below county level. A county can hold both a dense city centre and a suburb whose experience of it is nothing alike, so this describes the county around Lewis and Clark County rather than Lewis and Clark County itself. That is why AreaProfile shows these figures and does not put them in the Area Score. Where fewer than ten deaths were recorded the count is suppressed at source, and a rate built on single figures moves sharply between releases. What this measure has that reported crime does not: a death certificate is filed whether or not the local police agency submitted a return that year, so the figures stay comparable between places and over time.

What this profile does not cover

Three things people look for are missing from every AreaProfile page, and each is missing for a reason rather than by oversight. The Area Score is calculated without them and the weighting is documented on the methodology page.

Reported crime
Offences reported to police are published by department rather than by town, and only where a department reported every month of the year. No municipal department reports for this place — many smaller communities are policed by the county — so there is no figure to show. A partial year is never scaled up to look complete, and arrest counts or news volume are never substituted for it.
Taxes and full cost of living
No public source publishes either with national coverage and a method open enough to check. Housing affordability above is computed from published rent, price and income, and excludes transport, groceries, healthcare, insurance and taxes — commuting cost in particular tends to offset suburban housing savings. Nothing here is individualised tax advice.
Anything about a specific address
Every figure describes an area, not a street or a house. School attendance zones, insurance pricing and the character of a neighbourhood all vary within the places measured here.

Access

4 major airports lie within 100 miles, the nearest 40 miles away.

AirportCodeDistanceLongest runway
Helena RgnlHLN40 mi9,000 ft
Great Falls IntlGTF54 mi10,502 ft
Bert MooneyBTM81 mi9,000 ft

Airport identity, position and runway data come from the FAA. “Major airport” is an AreaProfile classification — a public-use civil airport with a paved runway of at least 8,000 feet — not an FAA hub designation. Distances are straight-line, not driving distance.

Customize your score

What matters to you?

Choose what you weight most heavily. Nothing is saved to an account — your preferences stay in this browser, and the Area Score never changes.

Area Score
78
Your Score

Select one or more priorities to see how this location scores against them.

Data & methodology

Used forSourceSource periodUpdated
AccessFederal Aviation Administration
Airports (NASR) — Aeronautical Data Delivery Service
NASR current cycle28-day NASR cycle
Physical riskFederal Emergency Management Agency
National Risk Index
National Risk Index December 2025 (v1.20.0)Periodic dataset versions (v1.20.0 current)
ClimateNOAA National Centers for Environmental Information
U.S. Climate Normals 1991–2020 (Monthly)
1991-2020 NormalsEvery ten years (next release follows the 2001–2030 period)
JobsU.S. Bureau of Labor Statistics
Local Area Unemployment Statistics
June 2026Monthly
DemographicsU.S. Census Bureau
Population Estimates Program
July 1, 2024 estimateAnnual (vintage released each spring)
DevelopmentU.S. Census Bureau
Building Permits Survey
12 months ending July 2026Monthly, roughly three weeks after the reference month
Demographics, Housing, Income, JobsU.S. Census Bureau
American Community Survey 5-Year Estimates (Table-Based Summary File)
2024 ACS 5-YearAnnual (5-year estimates released each December)
safetyU.S. Centers for Disease Control and Prevention, National Center for Health Statistics
Provisional county-level mortality by intent
April, 2025 to March, 2026Quarterly, with a rolling twelve-month window alongside complete calendar years
schoolsU.S. Department of Education, National Center for Education Statistics
Common Core of Data and EDFacts assessments
2019-20 school year; 2024-25 school yearDirectory annually; assessment results as EDFacts releases them
ClimateU.S. Environmental Protection Agency, Air Quality System
Daily Air Quality Index by county
2024 calendar yearAnnually, once a calendar year is complete

Profile recalculated August 30, 2026. Recalculation is not the same as new source data — each figure above shows the period its source actually covers. Read the full methodology or browse every source.

Cities in Lewis and Clark County, MT