 The per capita income for the city was $35,057.About 1.8% of families and 2.0% of the population were below the poverty line, including 1.1% of those under age 18 and 6.6% of those age 65 or over.Newcastle has been a preferred residence of numerous current and former Seattle Seahawks players, coaches, and front office personnel due to its close proximity to the NFL franchise's headquarters and practice facility on Lake Washington at the Virginia Mason Athletic Center (VMAC) in Renton.