Newcastle offers a tranquil, master-planned suburban escape perched on the scenic hillsides just south of Bellevue. The city’s biggest draw is its unmatched combination of outdoor recreation and effortless proximity to Bellevue's tech core, making it perfect for active professionals who want larger backyards and golf course views. It attracts those who value safety, quiet cul-de-sacs, and a slower pace of life while remaining entirely connected to urban amenities.
Your commute here is highly efficient, with quick access to I-405 keeping your drive into downtown Bellevue under fifteen minutes, and Seattle completely accessible via nearby I-90. The weekend routine centers around the outdoors and neighborhood gathering spaces. Residents can spend mornings hiking the expansive trail systems of the Cougar Mountain Regional Wildland Park, playing a round at the premier Golf Club at Newcastle, or meeting neighbors for a casual lunch at the local Mustard Seed Grill.
12,945 people live in Newcastle, where the median age is 37.4 and the average individual income is $93,095. Data provided by the U.S. Census Bureau.
Total Population
Median Age
Population Density Population Density This is the number of people per square mile in a neighborhood.
Average individual Income
Newcastle offers a tranquil, master-planned suburban escape perched on the scenic hillsides just south of Bellevue. The city’s biggest draw is its unmatched combination of outdoor recreation and effortless proximity to Bellevue's tech core, making it perfect for active professionals who want larger backyards and golf course views. It attracts those who value safety, quiet cul-de-sacs, and a slower pace of life while remaining entirely connected to urban amenities.
Your commute here is highly efficient, with quick access to I-405 keeping your drive into downtown Bellevue under fifteen minutes, and Seattle completely accessible via nearby I-90. The weekend routine centers around the outdoors and neighborhood gathering spaces. Residents can spend mornings hiking the expansive trail systems of the Cougar Mountain Regional Wildland Park, playing a round at the premier Golf Club at Newcastle, or meeting neighbors for a casual lunch at the local Mustard Seed Grill.
Based on information submitted to the MLS GRID as of . All data is obtained from various sources and may not have been verified by the broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
12,945 people live in Newcastle, where the median age is 37.4 and the average individual income is $93,095. Data provided by the U.S. Census Bureau.
Total Population
Median Age
Population Density Population Density This is the number of people per square mile in a neighborhood.
Average individual Income
There's plenty to do around Newcastle, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.
Explore popular things to do in the area, including Village Learning Child Care.
Newcastle has 5,373 households, with an average household size of 2.4. Data provided by the U.S. Census Bureau. Here’s what the people living in Newcastle do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 12,945 people call Newcastle home. The population density is 2,910 and the largest age group is Data provided by the U.S. Census Bureau.
Total Population
Population Density Population Density This is the number of people per square mile in a neighborhood.
Median Age
Men vs Women
Population by Age Group
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10-17 Years
18-24 Years
25-64 Years
65-74 Years
75+ Years
Education Level
Total Households
Average Household Size
Average individual Income
Households with Children
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Marital Status
Blue vs White Collar Workers
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White Collar:
