Durham County was one of the 26 counties of Western Australia that were designated in 1829 as cadastral divisions. It approximately corresponds to the north-eastern 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