Gallatin County, MT Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | Gallatin County | Montana Avg | U.S. Average |
|---|---|---|---|
| Population | 122,817 | 1,116,316 | 334,821,731 |
| Population density (per sq mi) | 46.7 | 7.6 | 85.8 |
| Population growth (%/yr) | 3.20% | 1.09% | 0.57% |
| Median age | 32.1 | 40.4 | 37.1 |
| Households | 50,031 | 452,676 | 128,459,983 |
Population in Gallatin County grew by 41.2% from 2009 to 2023, reaching 122,194 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
Gallatin County has a the economy index of B, which means it is quite prosperous.
| Metric | Gallatin County | Montana Avg | U.S. Average |
|---|---|---|---|
| Median household income | $89,485 | $69,624 | $78,145 |
| Income growth (%/yr) | 6.67% | 5.32% | 5.07% |
| Unemployment rate | 2.3% | 3.7% | 5.2% |
The median household income in Gallatin County is about 29% higher than in Montana.
Housing
| Metric | Gallatin County | Montana Avg | U.S. Average |
|---|---|---|---|
| Median home price | $754,732 | $242,768 | $242,182 |
| Median rent | $1,574 | $1,031 | $1,342 |
| Homeownership rate | 61.5% | 69.4% | 65.1% |
The median home price in Gallatin County is about 40.0 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,574 per month for that long.
Commute Time & Mobility
Commuters in Gallatin County spend about 33 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 137 hours, about 5.7 full days, spent commuting.
| Metric | Gallatin County | Montana Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 16.4 | 16.0 | 22.5 |
| Round-trip commute (min) | 32.9 | 32.0 | 44.9 |
| Yearly time spent (hours) | 137 | 134 | 187 |
| Estimated yearly cost | $4,245 | $4,139 | $5,803 |
| Work from home | 14.9% | 11.6% | 13.4% |
| Highway traffic (vehicles/day) | 4,783 | 2,162 | 8,813 |
| Local road traffic (vehicles/day) | 817 | 403 | 1,355 |
Fastest commutes among counties in
Montana:
Fallon County (7.4 min), Garfield County (7.8 min), Treasure County (7.8 min).
Slowest:
Broadwater County (30.4 min), Granite County (23.4 min), Stillwater County (22.8 min).
The average commute time in Gallatin County is about the same as in Montana.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Gallatin County has a education index of A, which means it is very educated.
| Metric | Gallatin County | Montana Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 45.3% | 31.3% | 31.6% |
| Average household size | 2.35 | 2.38 | 2.54 |
Highest education index among counties in
Montana:
Gallatin County (0.4), Missoula County (0.3), Lewis and Clark County (0.3).
Lowest:
Liberty County (0.2), Toole County (0.2), Wheatland County (0.2).
Health
Gallatin County has a health index of A+, which means it is exceptionally healthy.
| Metric | Gallatin County | Montana Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 81.1 | 79.0 | 78.3 |
| Self-rated poor health | 8.9% | 14.7% | 16.3% |
| Smokers | 13.1% | 18.8% | 19.0% |
Highest health index among counties in
Montana:
Gallatin County (0.8), Missoula County (0.8), Granite County (0.8).
Lowest:
Glacier County (0.7), Big Horn County (0.8), Roosevelt County (0.8).
Frequently Asked Questions
Common questions about Gallatin County, Montana.
What is the population of Gallatin County, Montana?
The population of Gallatin County, Montana is 122,817, compared to the U.S. total of 334,821,731.
What is the population density of Gallatin County, Montana?
The population density of Gallatin County, Montana is 46.7 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in Gallatin County, Montana?
The median household income in Gallatin County, Montana is $89,485, compared to the U.S. median of $78,145.
What is the median home price in Gallatin County, Montana?
The median home price in Gallatin County, Montana is $754,732, compared to the U.S. median of $242,182.
What is the unemployment rate in Gallatin County, Montana?
The unemployment rate in Gallatin County, Montana is 2.3%, compared to the U.S. average of 5.2%.