Between 2001 and 2021, the centre of population for Horsham (RC) moves 0.3km north-east, with population increasing from 18,300 in 2001 to 20,400 in 2021. Centres of population based on 30 June populations and geographic centroids of MBs within the SA2 of Horsham (RC). Blue = estimated, red = projected. Data: ABS/AIHW. Created by @AndyHowe_statto. AREA LIST