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Home >> State of Colorado >> Summit County  

Welcome to Summit County ...

Time Zone: Summit County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Breckenridge is the Seat for Summit County.

Summit County is one of the original counties of Colorado and was founded November 1, 1861.

From the Census Estimates for 2019, <1> Summit had a population of 31,011 people. This is an increase of 10.47% since the last Census (which gave a population of 28,073 people in 2010).

At the time of the 2010 Census, Summit represented 0.56% of the total population of Colorado.

Below are some of the communities located in Summit County:

  • Blue River
    (9 miles [14.5 km] to the south)
    • Blue River is located in Summit County (CO)
    • Jump to our Gazetteer entry for Blue River
    • Population from the 2020 Census: 928 people
  • Breckenridge
    (6 miles [9.7 km] to the south)
  • Dillon
    (3 miles [4.8 km] to the northeast)
    • Dillon is located in Summit County (CO)
    • Jump to our Gazetteer entry for Dillon
    • Population from the 2020 Census: 967 people
    • Jump to TripAdvisor's Tourism page for Dillon <2>
  • Frisco
    (Less than 2 miles to the west)
    • Frisco is located in Summit County (CO)
    • Jump to our Gazetteer entry for Frisco
    • Population from the 2020 Census: 2,874 people
    • Jump to TripAdvisor's Tourism page for Frisco <2>
  • Montezuma
    (10 miles [16.1 km] to the east)
  • Silverthorne
    (4 miles [6.4 km] to the north)

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.