Population 31,017 · Census ACS 2020–24
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Population and households in Summit County
Household size in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 2.57 | 2.57 | 2.68 |
| 2010–14 | 2.76 | 2.63 | 2.73 |
| 2015–19 | 2.88 | 2.64 | 2.71 |
| 2020–24 | 2.59 | 2.54 | 2.65 |
| Change | +0.02 | −0.04 | −0.03 |
Households in Summit County average 2.59 people, about the same as the country as a whole (2.65). Households are largest in the southeast and smallest in the west. Summit County has larger households than at least four in five Colorado counties.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 37.2 | 36.9 | 37.7 |
| 2010–14 | 37.5 | 37.7 | 38.6 |
| 2015–19 | 40.4 | 38.5 | 39.6 |
| 2020–24 | 41.7 | 39.1 | 40.1 |
| Change | +4.5 | +2.1 | +2.3 |
Summit County skews a little older than the country: its median age is 41.7, against 40.1 nationally. The median age has climbed from 37.2 in 2006–10, as it has nationally. The youngest areas are in the northeast, the oldest in the west.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 8.3% | 10.5% | 12.3% |
| 2010–14 | 7.5% | 10.8% | 12.3% |
| 2015–19 | 4.9% | 9.5% | 11.6% |
| 2020–24 | 6.9% | 9.3% | 11.6% |
| Change | −1.4 pts | −1.1 pts | −0.6 pts |
Single-parent households are relatively rare in Summit County: 6.9% of households, against 11.6% nationally. Since 2006–10, the single-parent share has edged down 1.4 points, in line with the national trend.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Summit County
Renters in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 29.5% | 32.4% | 33.3% |
| 2010–14 | 32.5% | 35.2% | 35.6% |
| 2015–19 | 34.5% | 34.8% | 36.0% |
| 2020–24 | 27.9% | 33.8% | 34.8% |
| Change | −1.6 pts | +1.4 pts | +1.5 pts |
Most households in Summit County own their homes; 27.9% rent, below the national share of 34.8%. Just over a third of owners (35.0%) have paid off their mortgages, below the national share of 39.8%. Renting is most common in the northeast and least common in the southeast. The renter share has fallen 1.6 points since 2006–10, even as the national share rose.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 52.0% | 10.3% | 11.4% |
| 2010–14 | 55.2% | 8.7% | 11.4% |
| 2015–19 | 54.8% | 8.0% | 11.1% |
| 2020–24 | 48.3% | 7.3% | 9.6% |
| Change | −3.6 pts | −3.0 pts | −1.8 pts |
Vacancy is high in Summit County: 48.3% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Vacancy is down 3.6 points from 2006–10, as it has nationally.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 1983 | 1981 | 1974 |
| 2010–14 | 1987 | 1982 | 1975 |
| 2015–19 | 1987 | 1983 | 1977 |
| 2020–24 | 1989 | 1988 | 1980 |
| Change | +5 | +7 | +6 |
Much of the housing in Summit County is relatively new: half of its homes were built after 1989, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1983 in 2006–10, a sign of steady new building. Newer construction is concentrated in the south, while the northeast has the oldest housing.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | $1,213 | $1,051 | $965 |
| 2010–14 | $1,221 | $1,165 | $1,040 |
| 2015–19 | $1,533 | $1,450 | $1,213 |
| 2020–24 | $2,266 | $1,963 | $1,571 |
| Change | +$1,053 | +$912 | +$606 |
The median renter in Summit County pays $2,266 a month for rent and utilities, well above the national median of $1,571. Rent has climbed $1,053 a month since 2006–10, up 87%, faster than rents rose nationally. The typical renter here spends 31.1% of household income on rent, just over the 30% mark often used to define affordable rent. The priciest rents are in the southeast; the most affordable are in the northeast.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Summit County
Bachelor's degrees in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 48.7% | 36.4% | 28.4% |
| 2010–14 | 47.9% | 37.8% | 29.6% |
| 2015–19 | 53.6% | 40.9% | 32.1% |
| 2020–24 | 54.7% | 45.9% | 35.6% |
| Change | +6.0 pts | +9.4 pts | +7.2 pts |
Summit County is highly educated: more than half of adults 25 and older (54.7%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 6.0 points from 2006–10, as it has nationally. Summit County has a higher share of college graduates than the great majority of Colorado counties.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 94.7% | 89.5% | 84.9% |
| 2010–14 | 94.2% | 90.5% | 86.1% |
| 2015–19 | 93.4% | 91.8% | 87.7% |
| 2020–24 | 96.0% | 92.8% | 89.3% |
| Change | +1.3 pts | +3.3 pts | +4.3 pts |
High school completion is high in Summit County: 96.0% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 1.3 points from 2006–10, a smaller shift than nationally.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Summit County
| Period | Summit County | Colorado | U.S. |
|---|---|---|---|
| 2006–10 | 4.7% | 6.8% | 8.1% |
| 2010–14 | 5.4% | 7.9% | 9.4% |
| 2015–19 | 3.2% | 4.4% | 5.6% |
| 2020–24 | 4.2% | 4.6% | 5.4% |
| Change | −0.5 pts | −2.3 pts | −2.7 pts |
Jobs have been a little easier to find in Summit County than nationally: unemployment was 4.2%, against 5.4%. Colorado as a whole looks much the same. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Summit County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Summit County | 2.59 | 41.7 | 6.9% | 27.9% | 48.3% | 1989 | $2,266 | 54.7% | 96.0% | 4.2% |
| Eagle County | 2.64 | 39.7 | 9.0% | 34.1% | 20.4% | 1995 | $2,051 | 50.5% | 94.9% | 4.2% |
| Douglas County | 2.76 | 40.2 | 7.4% | 22.6% | 4.5% | 2003 | $2,606 | 62.2% | 97.7% | 3.5% |
| Arapahoe County | 2.66 | 38.8 | 10.8% | 35.3% | 5.6% | 1988 | $2,201 | 46.1% | 91.5% | 4.9% |
| Garfield County | 2.66 | 38.2 | 9.0% | 30.4% | 7.2% | 1991 | $1,712 | 32.0% | 88.8% | 3.5% |
| Carbon County | 2.48 | 39.2 | 8.4% | 32.1% | 15.3% | 1966 | $884 | 19.1% | 92.5% | 6.5% |
| Osborne County | 2.11 | 45.9 | 9.9% | 22.8% | 21.9% | 1951 | $648 | 24.1% | 93.8% | 1.6% |
| Mitchell County | 2.12 | 45.1 | 6.8% | 31.0% | 13.0% | 1956 | $616 | 26.7% | 93.7% | 0.1% |
| Cloud County | 2.23 | 40.9 | 11.9% | 26.0% | 13.9% | 1954 | $821 | 21.2% | 95.0% | 2.3% |
| Jackson County | 2.67 | 42.3 | 5.2% | 22.9% | 11.7% | 1975 | $865 | 22.7% | 93.5% | 1.6% |
| Atchison County | 2.65 | 37.5 | 12.7% | 28.1% | 17.4% | 1965 | $874 | 23.5% | 95.0% | 4.2% |
All figures 2020–24.
Counties with similar populations: Calloway County, KY · Texas County, MO · Teton County, WY · Teller County, CO · Tazewell County, VA · Taylor County, KY · Tattnall County, GA · Tate County, MS · Taos County, NM · Staunton City, VA
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Summit County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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