What to know before you move: cost, market timing, who it fits.
If you're considering a move to Newcastle, WA, the most important variables are the local housing market, the cost structure (taxes, insurance, utilities), and how well the city fits your day-to-day life. This page summarizes the housing market read; pair it with the cost of living page for the full picture.
Newcastle is a city in King County, Washington, with an estimated population of 13,072. It anchors the Seattle-Tacoma-Bellevue metro area. The median home value in Newcastle is $1,430,109 as of 2026-04, down 1.0% over the last 12 months. Over the last five years, home values have averaged +6.2% annual growth (-3.4% from the 5-year peak). Rents in Newcastle average $2,584 per month, roughly flat year-over-year (+1.5%). The composite momentum score is 60 of 100 (Stable). Conditions are neither hot nor cold, so the local fit matters more than market timing.
Sideways market (-1.0% YoY). No urgency to time the macro trend — focus on the home and neighborhood.
Reasons people move here
- Healthy 5-year run: +6.2% annualized over 5 years, outpacing US inflation.
- The data is the data: Newcastle has at least 5 years of Zillow tracking, full Census identification, and is included in the 2-criteria momentum score on this page.
Things to know first
- Expensive AND not growing: median home $1,430,109 with only -1.0% YoY. You're paying premium pricing for a flat trend.
- Thin housing market: small population means fewer transactions and slower resale. Liquidity risk on exit.
More about Newcastle
Sources: Zillow ZHVI (home values), Zillow ZORI (rents), US Census ACS + place population. Updated when source agencies publish revisions.