Howick County was one of the 26 counties of Western Australia that were designated in 1829 as cadastral divisions. It approximately corresponds to the southeastern part of the Avon Land District which forms the basis for land titles in the area.
Beaufort • Carnarvon • Durham • Glenelg • Goderich • Grantham • Grey • Hay • Howick • Kent • Lanark • Lansdowne • Melbourne • Minto • Murray • Nelson • Peel • Plantagenet • Perth • Stirling • Sussex • Twiss • Victoria • Wellington • Wicklow • York