Average household size

Castle Creek (Vic.)'s household size is 3.3 — among the highest in the country, much higher than the typical suburb (2.5).

It ranks 635th of 14,740 suburbs nationally — higher than 94% of them.

Castle Creek (Vic.) has a higher household size than nearby Huon Creek, Bandiana and Leneva.

Since 2016, it has risen 32% (from 2.5) — a bigger change than the national fall of 4%.