Summit County, Colorado Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Summit County, CO Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
A
Health Above averageHealthier than 82% of counties in Colorado
-
B
Income Around averageWealthier than 87% of counties in Colorado
-
A
Education Above averageBetter educated than 82% of counties in Colorado
Source: Map AI Methodology
Population: density and quick facts
| Metric | Summit County | Colorado Avg | U.S. Average |
|---|---|---|---|
| Population | 31,017 | 5,842,429 | 337,468,954 |
| Population density (per sq mi) | 50.1 | 56.1 | 86.4 |
| Population growth (%/yr) | 0.73% | 1.09% | 0.59% |
| Median age | 38.4 | 35.2 | 37.3 |
| Households | 12,545 | 2,364,171 | 130,235,071 |
Population in Summit County grew by 18.2% from 2009 to 2024, reaching 31,017 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Summit County is Millennials, aged 29–44, at 28.8% of residents. That is 4.6 points above Colorado as a whole.
- Gen Z 13–28 6,456 20.8% -1.8 pts
- Millennials 29–44 8,933 28.8% +4.6 pts
- Gen X 45–60 6,606 21.3% +1.5 pts
- Boomers 61–79 5,004 16.1% +0.9 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Colorado, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 44.8% of the people living in Summit County and men 55.2%.
- Women 44.8% Colorado 49.4%
- Men 55.2% Colorado 50.6%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Summit County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Summit County has a the economy index of B, which means it is quite prosperous.
| Metric | Summit County | Colorado Avg | U.S. Average |
|---|---|---|---|
| Median household income | $111,746 | $95,803 | $80,455 |
| Income growth (%/yr) | 6.49% | 5.41% | 4.80% |
| Unemployment rate | 5.0% | 4.6% | 5.2% |
The median household income in Summit County is about 17% higher than in Colorado.
Housing
| Metric | Summit County | Colorado Avg | U.S. Average |
|---|---|---|---|
| Median home price | $721,081 | $484,034 | $248,835 |
| Median rent | $1,927 | $1,761 | $1,407 |
| Homeownership rate | 72.1% | 66.2% | 65.2% |
The median home price in Summit County is about 31.2 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,927 per month for that long.
Commute Time & Mobility
Commuters in Summit County spend about 35 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 145 hours, about 6.0 full days, spent commuting.
| Metric | Summit County | Colorado Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 17.4 | 22.0 | 22.4 |
| Round-trip commute (min) | 34.7 | 44.1 | 44.8 |
| Yearly time spent (hours) | 145 | 184 | 187 |
| Estimated yearly cost | $4,485 | $5,694 | $5,790 |
| Work from home | 23.7% | 21.0% | 15.0% |
| Highway traffic (vehicles/day) | 6,553 | 8,183 | 8,813 |
| Local road traffic (vehicles/day) | 1,454 | 1,277 | 1,355 |
Fastest commutes among counties in
Colorado:
Hinsdale County (6.6 min), Prowers County (7.6 min), Cheyenne County (7.7 min).
Slowest:
Park County (42.5 min), Elbert County (41.5 min), Teller County (31.3 min).
The average commute time in Summit County is 17 minutes, shorter than the 22 minutes in Colorado.
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
Summit County has a education index of A, which means it is very educated.
| Metric | Summit County | Colorado Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 48.8% | 40.3% | 31.6% |
| Average household size | 2.42 | 2.42 | 2.53 |
Highest education index among counties in
Colorado:
Boulder County (0.5), Douglas County (0.4), Broomfield County (0.4).
Lowest:
Crowley County (0.2), Bent County (0.2), Lincoln County (0.2).
Health
Summit County has a health index of A, which means it is very healthy.
| Metric | Summit County | Colorado Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 82.1 | 80.0 | 78.3 |
| Self-rated poor health | 8.4% | 13.2% | 16.3% |
| Smokers | 13.4% | 16.1% | 19.0% |
Highest health index among counties in
Colorado:
Douglas County (0.9), Boulder County (0.8), Broomfield County (0.8).
Lowest:
Costilla County (0.8), Otero County (0.8), Bent County (0.8).
Summit County, CO Compared With Nearby Counties
How Summit County, CO compares with the 1 counties closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Summit County, CO | 31,017 | $111,746 #1/2 | $721,081 #2/2 | 17.4 min #1/2 |
| Eagle County, CO | 55,135 | $104,738 | $1,803,212 | 20.2 min |
Frequently Asked Questions
Common questions about Summit County, Colorado.
What is the population of Summit County, Colorado?
About 31,017 people live in Summit County, Colorado, in 12,545 households of 2.4 people on average. The median age is 38.4, close to the U.S. median of 37.3.
Is Summit County, Colorado urban or rural?
Averaged over its land area, Summit County, Colorado has 50 people per square mile, a density typical of rural areas. That is about 58% of the U.S. average of 86.
How affordable is housing in Summit County, Colorado?
The median home costs 6.5 times the median household income ($721,081 against $111,746), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,927 a month takes about 21% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How common is a college degree in Summit County, Colorado?
48.8% of adults in Summit County, Colorado hold a bachelor's degree or higher (about 1 in 2), well above the U.S. share of 31.6%.
Analyze any area in the US
Get local demographics for any address, aggregated by drive time or radius, on the interactive map.
Explore the map →