Welcome to Westminster ...

The city of Westminster is primarily located in Adams County<1>. A portion of Westminster extends into Jefferson County.

Westminster was established in 1859 and was incorporated May 24, 1911.

From the  Census Estimates for 2019, Westminster has a population of 115,146 people<2> (see below for details).

The community of Westminster is 5,320 feet [1,622 m] above sea level.<3> In other words, the altitude of Westminster is 1 mile [or ~1½ km] above sea level.

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

Area codes for Westminster: (303) and (720)<4>

The ZIP codes for Westminster: 80030-80031, 80035-80036<5>

Websites for Westminster ...

Official Website: www.ci.westminster.co.us/

Population Details ...

Taken from the 2019 Census Estimates, Westminster had an population of 115,146 people. This is an increase of 8.51% since the 2010 Census (or an increase of 14.07% since the 2000 Census).

At the time of the 2010 Census, Westminster had a population of 106,114 people (which is 24.03% of the total population of Adams County). This makes Westminster the county's 3rd most populous community.

The population of Westminster represents 2.11% of the total population of Colorado (which has 5,029,196 people), making it the state's 9th most populous community.

With a 2010 count of 106,114 people, the population of Westminster increased 5.13% from the 2000 Census (with a count of 100,940 people).

More information can be found on the Census Page for Westminster.

Communities Also Named Westminster ...

Using our Gazetteer, we found that there are two Colorado communities named Westminster: This one is located in Adams County and the other is located in Jefferson County.

Beyond Colorado, there are 22 communities that are also named Westminster - they are located in California, Connecticut, Delaware, Florida, Illinois, Kansas, Louisiana, Maryland, Massachusetts, Michigan, North Carolina, Ohio, Ontario (2), Pennsylvania (2), Quebec, South Carolina, Texas (2) and Vermont.

For more information, see our Tidbits & Trivia Page for Westminster.

Communities near Westminster ...

We have created a list of 10 communities that are near Westminster.

• Denver
  (6 miles [9.7 km] to the south)
  • Jump to our Gazetteer entry for Denver
  • Denver is located in Denver County
  • Population from the 2020 Census: 735,538 people
  • Former names for Denver:
  • Auraina
  • Denver City
  • Montana City
  • Jump to TripAdvisor's Tourism page for Denver <6>
• Aurora
  (13 miles [20.9 km] to the southeast)
  • Jump to our Gazetteer entry for Aurora
  • Aurora is located in Arapahoe County
  • Population from the 2020 Census: 387,377 people
  • Jump to TripAdvisor's Tourism page for Aurora <6>
• Lakewood
  (10 miles [16.1 km] to the southwest)
  • Note: The GPS coordinates that we are using for Lakewood have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Lakewood
  • Lakewood is located in Jefferson County
  • Population from the 2020 Census: 157,429 people
  • Jump to TripAdvisor's Tourism page for Lakewood <6>
• Thornton
  (7 miles [11.3 km] to the northeast)
  • Note: The GPS coordinates that we are using for Thornton have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Thornton
  • Thornton is located in Adams County
  • Population from the 2020 Census: 148,113 people
  • Jump to TripAdvisor's Tourism page for Thornton <6>
• Centennial
  (19 miles [30.6 km] to the southeast)
  • Jump to our Gazetteer entry for Centennial
  • Centennial is located in Arapahoe County
  • Population from the 2020 Census: 110,156 people
  • Jump to TripAdvisor's Tourism page for Centennial <6>
• Boulder
  (17 miles [27.4 km] to the northwest)
  • Jump to our Gazetteer entry for Boulder
  • Boulder is located in Boulder County
  • Population from the 2020 Census: 107,645 people
  • Jump to TripAdvisor's Tourism page for Boulder <6>
• Broomfield
  (8 miles [12.9 km] to the north)
  • Note: The GPS coordinates that we are using for Broomfield have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Broomfield
  • Broomfield is located in Broomfield County
  • Population from the 2020 Census: 72,236 people
  • Jump to TripAdvisor's Tourism page for Broomfield <6>
• Commerce City
  (13 miles [20.9 km] to the east)
  • Note: The GPS coordinates that we are using for Commerce City have been provided by the GNIS.<7> The coordinates still need to be verified.
  • Jump to our Gazetteer entry for Commerce City
  • Commerce City is located in Adams County
  • Population from the 2020 Census: 59,317 people
  • Jump to TripAdvisor's Tourism page for Commerce City <6>
• Littleton
  (15 miles [24.1 km] to the south)
  • Jump to our Gazetteer entry for Littleton
  • Littleton is located in Arapahoe County
  • Population from the 2020 Census: 46,000 people
  • Jump to TripAdvisor's Tourism page for Littleton <6>
• Brighton
  (16 miles [25.7 km] to the northeast)
  • Jump to our Gazetteer entry for Brighton
  • Brighton is located in Adams County
  • Population from the 2020 Census: 40,783 people
  • Jump to TripAdvisor's Tourism page for Brighton <6>

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Westminster. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Westminster.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Westminster. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Westminster.

We also have a detailed list of newspapers that have been published in the area around Westminster. See our Newspapers Page for Westminster.

TripAdvisor Tourism Pages for Westminster ...

Looking for more information about Westminster? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Westminster, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Westminster.

Adding Westminster to Our Gazetteer ...

We originally found mention of Westminster in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Westminster was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<8>

From that list, the Westminster post office opened in 1908.

We also found Westminster on a map titled Rand McNally Map of Colorado (1947).

For more details, see References and Mentions for Westminster.

Off-the-Road Links ...

The official website for Westminster: www.ci.westminster.co.us/

The official website for Adams County: www.co.adams.co.us/

The official website for State of Colorado: https://www.colorado.gov/