Townapedia
Newcastle snow
Newcastle snow · Jkl sem at English Wikipedia, GFDL 1.2
Newcastle sunny
Newcastle sunny · CJPlusPlus, CC BY 4.0
Lake Boren (Newcastle, WA)
Lake Boren (Newcastle, WA) · Gene Bisbee, CC BY 2.0
Newcastle trail marker
Newcastle trail marker · CJPlusPlus, CC BY 4.0
Mercer Island, WA - Lakeview School 01
Mercer Island, WA - Lakeview School 01 · Joe Mabel, CC BY-SA 3.0
Coal Creek Falls 04067
Coal Creek Falls 04067 · Walter Siegmund, CC BY 2.5

Newcastle, Washington

Newcastle is a city of 12,989 people in King County, Washington.

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Population12,989 +10.5% since 2019
Elevation561 ft 171 m
Land area4.4 sq mi
ZIP codes98056, 98059
Nearest airportRenton Municipal Airport (RNT) 4 mi

Why visit Newcastle

Townapedia lists 5 museums and landmarks, 52 parks and trails, 43 places to eat, 1 place to stay and 7 attractions in and around town.

Highlights include East Channel Bridge, Lakeview School, Pacific Coast Company House No. 75 and Cougar Mountain Regional Wildland Park.

August is the warmest month, with average highs of 78°F; December lows average 37°F.

About Newcastle

Newcastle is an Eastside city in King County, Washington, United States. The population was 13,017 at the 2020 census.

From the Wikipedia article Newcastle, Washington (this version), under CC BY-SA 4.0.

Things to do7

East Channel Bridge

Bridge · 3.4 mi

Pair of highway and rail bridges in King County, Washington, US opened in the 1980s

Open in Google Maps · Wikipedia

De Leo Wall Viewpoint

Scenic view · 1.6 mi

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Far Country Falls

Waterfall · 2.1 mi

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Far Country Falls Viewpoint

Scenic view · 2.1 mi

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Far Country Lookout

Scenic view · 2.2 mi

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Marshall's Hill

Scenic view · 1.5 mi

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North Fork Falls

Waterfall · 1.7 mi

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Museums and landmarks5

Lakeview School

Monument and historic site · National Register of Historic Places · 2.6 mi

Listed on the National Register of Historic Places in King County, Washington

Open in Google Maps · Wikipedia

Pacific Coast Company House No. 75

Monument and historic site · National Register of Historic Places · 0.6 mi

Open in Google Maps · Wikipedia

Baima House

Monument and historic site · 0.5 mi

Open in Google Maps · Wikipedia

Coal Creek Hotel

Monument and historic site · 1.8 mi

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Steam Hoist Foundation

Monument and historic site · 1.8 mi

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Parks, trails and playgrounds52

Cougar Mountain Regional Wildland Park

Park · 3.7 mi

Park in King County, Washington, US

Open in Google Maps · Wikipedia

Gene Coulon Memorial Beach Park

Park · 2.5 mi

Park in King County, Washington, United States of America

Open in Google Maps · Wikipedia

Bellevue Open Space

Park · 1.2 mi

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Kennydale Beach Park

Park · 2.1 mi

3501 Lake Washington Boulevard North, Renton

sunrise-sunset

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Lake Boren Park

Park · 0.4 mi

13058 Southeast 84th Way, Newcastle

07:00-dusk

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Meadow Wood Park

Park · 1.1 mi

13817 Southeast 60th Street, Bellevue

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Newport Hills Park

Park · 1.1 mi

6029 120th Avenue Southeast, Bellevue

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Windtree Park

Park · 1.2 mi

9129 121st Avenue Southeast, Newcastle

07:00-dusk

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Ballybunion Park

Park · 1.4 mi

A little neighborhood park with few slides for little kids, swing and a picnic table

8200 150th Place Southeast, Newcastle

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Coal Creek Natural Area

Hiking and trails · 1.2 mi

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Little Rhody Park

Park · 1.1 mi

07:00-dusk

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40 more on the map.

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Restaurants and cafes43

Ahram Kitchen

Restaurant · Korean · 2.1 mi

1630 Duvall Avenue Northeast, Renton

Tu-Su 11:00-20:00

Open in Google Maps · +1-425-572-6708

Filling Station Coffee and Bistro

Cafe · Coffee Shop · 2.0 mi

1302 North 30th Street, Renton

Mo-Fr 06:00-19:00; Sa 07:00-19:00; Su 08:00-15:00

Open in Google Maps · +1-425-572-6705

Starbucks

Cafe · Coffee Shop · 0.6 mi

13120 Newcastle Commons Drive, Newcastle

Mo-Fr 04:30-20:00; Sa-Su 05:00-19:30

Open in Google Maps · +1-425-757-1670

Starbucks

Cafe · Coffee Shop · 1.3 mi

1785 Northeast 44th Street, Renton

Mo-Fr 04:00-21:00; Sa-Su 05:00-20:00

Open in Google Maps · +1-425-226-7007

Resonate Brewery + Pizzeria

Restaurant · Pizza · 1.3 mi

5606A 119th Avenue Southeast, Bellevue

Open in Google Maps · +1-425-644-3164

Starbucks

Cafe · Coffee Shop · 2.1 mi

4637 Northeast Sunset Boulevard, Renton

Open in Google Maps · +1-425-917-9821

AJI Sushi & Grill Newcastle

Restaurant · Sushi · 0.6 mi

13176 Newcastle Commons Drive, Newcastle

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I Luv Teriyaki

Restaurant · Japanese · 2.1 mi

4500 Northeast Sunset Boulevard, Renton

Mo-Sa 10:30-21:00

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Kim Phuong Vietnamese Restaurant

Restaurant · Vietnamese · 2.1 mi

4500 Northeast Sunset Boulevard, Renton

Mo-Sa 10:00-21:00; Su 10:00-20:00

Open in Google Maps

Pho Hein Trang

Restaurant · Vietnamese · 2.1 mi

Tu-Su 10:00-20:30

Open in Google Maps · +1 425-687-5848

See Fah Thai Cuisine

Restaurant · Thai · 2.0 mi

1630 Duvall Avenue Northeast, Renton

Mo-Sa 11:00-21:00

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Ajuuua Catina Casa Durango

Restaurant · Mexican · 2.1 mi

11:00-21:00

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31 more on the map.

History

Coal was discovered along Coal Creek in 1863 by surveyors Philip H. Lewis and Edwin Richardson, who had been working in the area for the United States General Land Office. Newcastle was named for the idiom "Coals to Newcastle" by a party of coal surveyors in 1869 according to F. H. Whitworth, who was part of the party. One of them suggested the name "New Castle" which was subsequently adopted by all parties of interest. The idiom itself refers to the English city of Newcastle upon Tyne.

Newcastle (originally spelled "New Castle") as a village was properly established by the 1870s, though the official date given for the founding of the town is 1869, as seen on the seal for the City of Newcastle. By 1872, 75–100 tons of coal per day were being produced at Newcastle. About 60 men worked at the mines. The Seattle and Walla Walla Railroad, the first railroad in King County, reached Newcastle from Seattle in 1878. Coal mining ended in 1963.

From the History section of Newcastle, Washington on Wikipedia, under CC BY-SA 4.0.

Where to stay1

  • Inn At Lake Washington

    Motel and hotel · 1.3 mi

    4710 Lake Washington Boulevard Northeast, Renton

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Churches and places of worship10

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Shopping3

Gas and EV charging10

Schools, colleges and libraries49

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Healthcare4

Map of Newcastle

184 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

40°60°80°January: 4.9 in of rainFebruary: 3.2 in of rainMarch: 3.7 in of rainApril: 2.8 in of rainMay: 1.9 in of rainJune: 1.5 in of rainJuly: 0.6 in of rainAugust: 0.9 in of rainSeptember: 1.5 in of rainOctober: 3.5 in of rainNovember: 5.6 in of rainDecember: 4.5 in of rainJanuary: 48°FFebruary: 50°FMarch: 55°FApril: 60°FMay: 66°FJune: 71°FJuly: 77°FAugust: 78°FSeptember: 72°FOctober: 61°FNovember: 52°FDecember: 47°FJanuary: 37°FFebruary: 37°FMarch: 40°FApril: 43°FMay: 49°FJune: 54°FJuly: 58°FAugust: 57°FSeptember: 53°FOctober: 46°FNovember: 40°FDecember: 37°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRain
Jan48°F37°F4.9 in
Feb50°F37°F3.2 in
Mar55°F40°F3.7 in
Apr60°F43°F2.8 in
May66°F49°F1.9 in
Jun71°F54°F1.5 in
Jul77°F58°F0.6 in
Aug78°F57°F0.9 in
Sep72°F53°F1.5 in
Oct61°F46°F3.5 in
Nov52°F40°F5.6 in
Dec47°F37°F4.5 in

U.S. Climate Normals 1991-2020 for Renton Muni Ap (4 mi away), NOAA NCEI.

People and cost of living

$160,278median household income
$1,205,600median home value
$2,369median monthly rent
37.5median age
68.5%of adults have a bachelor's degree or higher
61.0%of homes are owner-occupied
27.9 minaverage commute
Age of residents
Under 1820%18 to 3426%35 to 6438%65 and over16%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

King County has had 18 federal disaster declarations since 2000, most often for severe storms.

  • 2026-04-07: Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (Flood)
  • 2025-12-12: Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (Flood)
  • 2024-04-28: Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (Severe Storm)
  • 2022-09-10: Bolt Creek Fire (Fire)
  • 2020-04-23: Severe Storms, Flooding, Landslides, And Mudslides (Flood)
  • 2020-03-22: Covid-19 Pandemic (Biological)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Renton Municipal Airport (RNT) is the nearest airport with scheduled flights listed in OpenStreetMap, 4 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.