Welcome to Newcastle ...

The city of Newcastle is located on Puget Sound.

Newcastle is located in King County<1>.

While we don't have a date for the founding of Newcastle, you might get a feel for it by knowing that during our research the earliest mention that we found (so far) was in a book dated 1895.

From the  Census Estimates for 2019, Newcastle has a population of 12,286 people<2> (see below for details).

The community of Newcastle is 380 feet [116 m] above sea level.<3>.

Time Zone: Newcastle lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

The telephone area code for Newcastle: (425)

The ZIP code for Newcastle: 98059<4>

Websites for Newcastle ...

Official Website: www.ci.newcastle.wa.us/

Population Details ...

Taken from the 2019 Census Estimates, Newcastle had an population of 12,286 people. This is an increase of 18.36% since the 2010 Census (or an increase of 58.8% since the 2000 Census).

At the time of the 2010 Census, Newcastle had a population of 10,380 people. This makes Newcastle the county's 25th most populous community.

The population of Newcastle represents 0.15% of the population of Washington (which has 6,724,540 people), making it the state's 78th most populous community.

With a 2010 count of 10,380 people, the population of Newcastle increased 34.16% from the 2000 Census (which had a count of 7,737 people).

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

Communities Also Named Newcastle ...

Using our Gazetteer, we found that there are 18 communities that are also named Newcastle - they are located in Alberta, Arkansas, British Columbia, California, Florida, Illinois, Kansas (2), Maine, Nebraska, New Brunswick, Ohio, Oklahoma, Ontario, Tennessee, Texas, Utah and Wyoming.

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

Communities near Newcastle ...

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

• Seattle
  (9 miles [14.5 km] to the northwest)
  • Jump to our Gazetteer entry for Seattle
  • Seattle is located in King County
  • Population from the 2020 Census: 769,714 people
  • Jump to TripAdvisor's Tourism page for Seattle <5>
• Kent
  (11 miles [17.7 km] to the south)
  • Jump to our Gazetteer entry for Kent
  • Kent is located in King County
  • Population from the 2020 Census: 130,676 people
  • Jump to TripAdvisor's Tourism page for Kent <5>
• Federal Way
  (16 miles [25.7 km] to the southwest)
  • Jump to our Gazetteer entry for Federal Way
  • Federal Way is located in King County
  • Population from the 2020 Census: 96,307 people
  • Jump to TripAdvisor's Tourism page for Federal Way <5>
• Kirkland
  (9 miles [14.5 km] to the north)
  • Jump to our Gazetteer entry for Kirkland
  • Kirkland is located in King County
  • Population from the 2020 Census: 95,431 people
  • Jump to TripAdvisor's Tourism page for Kirkland <5>
• Auburn
  (16 miles [25.7 km] to the south)
  • Jump to our Gazetteer entry for Auburn
  • Auburn is located in King County
  • Population from the 2020 Census: 81,024 people
  • Jump to TripAdvisor's Tourism page for Auburn <5>
• Redmond
  (9 miles [14.5 km] to the north)
  • Jump to our Gazetteer entry for Redmond
  • Redmond is located in King County
  • Population from the 2020 Census: 72,507 people
  • Jump to TripAdvisor's Tourism page for Redmond <5>
• Sammamish
  (7 miles [11.3 km] to the northeast)
  • Jump to our Gazetteer entry for Sammamish
  • Sammamish is located in King County
  • Population from the 2020 Census: 65,960 people
  • Jump to TripAdvisor's Tourism page for Sammamish <5>
• Shoreline
  (17 miles [27.4 km] to the northwest)
  • Jump to our Gazetteer entry for Shoreline
  • Shoreline is located in King County
  • Population from the 2020 Census: 58,197 people
  • Jump to TripAdvisor's Tourism page for Shoreline <5>
• Burien
  (9 miles [14.5 km] to the southwest)
  • Jump to our Gazetteer entry for Burien
  • Burien is located in King County
  • Population from the 2020 Census: 51,268 people
  • Jump to TripAdvisor's Tourism page for Burien <5>
• Bothell
  (15 miles [24.1 km] to the north)
  • Jump to our Gazetteer entry for Bothell
  • Bothell is located in King County
  • Population from the 2020 Census: 47,524 people
  • Jump to TripAdvisor's Tourism page for Bothell <5>

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 Newcastle. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Newcastle.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Newcastle. 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 Newcastle.

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

TripAdvisor Tourism Pages for Newcastle ...

Looking for more information about Newcastle? 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 Newcastle, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Newcastle.

Adding Newcastle to Our Gazetteer ...

We originally found mention of Newcastle 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 Newcastle was in the book titled Business Atlas and Shippers' Guide (1895).

We also found Newcastle on a map titled Auto Trails Map of Washington (1925).

For more details, see References and Mentions for Newcastle.

Off-the-Road Links ...

The official website for Newcastle: www.ci.newcastle.wa.us/

The official website for King County: www.metrokc.gov/

The official website for State of Washington: https://access.wa.gov/