Newcastle
A city in King County, Washington — population 12,905 as of 2020.
Scopes news, events and the map to Newcastle. No account needed — we keep it on this device.
Your city
Change city
News, events and the map open here. Kept on this device.
is your city now — Newcastle would replace it. We'll ask first.
stops being your city.
Newcastle takes over news, events and the map.
Red Flag Warning — Red Flag Warning issued August 22 at 6:49AM PDT until August 22 at 5:00PM PDT by NWS Seattle WA
Red Flag Warning — Red Flag Warning issued August 22 at 6:49AM PDT until August 22 at 8:00PM PDT by NWS Seattle WA
This Afternoon
76°F
Mostly Sunny12% precip
Tonight
59°F
Mostly Cloudy then Slight Chance Light Rain14% precip
Sunday
75°F
Partly Sunny11% precip
Sunday Night
56°F
Partly Cloudy
You know Newcastle better than we do.
Add the places people actually go. Our editors review submissions before they publish — you'll need an account with access to send one.
Newcastle by the numbers
Population
12,905Population figure, 2020
Households & income
- Area
- 4.44 sq mi (11.49 km²), 0.02 sq mi water
- Median age
- 37.5
- Households
- 5,416
- Persons per household
- 2.4
- Median household income
- $160,278
- Median house value
- $1,205,600
Municipal office
- Office
- MAYOR
- Address
- 12835 NEWCASTLE WAY, NEWCASTLE, WA 98056