At the 1901 Census, Ickenham had a population of 329; at the 2001 Census the population had reached 9,933, although census figures show a marked population decline during the 1960s and 1970s. By the 2011 Census, the population had reached 10,387. When Ickenham obtained a railway station on the Metropolitan Railway's line between Harrow and Uxbridge, a great deal of residential development started in the village, and it gradually became part of the London commuter belt. Ickenham expanded with the sale and development of much of the Swakeleys estate in 1922 and became part of what was later termed "Metro-land".