The name probably is derived from "The homestead (-ham) of the followers (-ing) of Waerla".
Prior to the opening of a large supermarket at the Chelsham end of Limpsfield Road, the village also supported a bakers, 2 butchers, a greengrocers another general grocers. These have all since closed, probably as a result of competition from the supermarket. The majority of local people opposed the building of the supermarket as did the local council. However, after the supermarket chain threatened to withdraw a traffic calming scheme the council capitulated and allowed the construction of the supermarket. This has led to a massive increase in traffic on Limpsfield Road and a sharp reduction in general trade for shops around the village green.
Warlingham Sports Club dates back to 1856.
There are a few schools in Warlingham. Warlingham School is closer to Hamsey Green than Warlingham (and is on the same campus as Hamsey Green Junior and Infant schools) and is a senior state school, with a thriving 6th Form. Warlingham Park School is a small private school which is very close to Chelsham Common (and is near the Great Park housing estate).
There is also another primary school situated in on Farleigh Road. It was called Farleigh school, until it was renamed Warlingham Village School.
In early 2008, a new Locksmith was opened in place of Unwins Wine Merchants, which had previously gone out of business.
In May 2008, a new Nail Bar was opened, in which used to be a Butchers.
In June 2008, a new coffee and sandwich shop was opened on the green, replacing Uptempo Music Store.
In September 2008, Another coffee shop was opened next to the locksmith.
The local station is about a mile from Warlingham and is called Upper Warlingham railway station, which has fast Southern services to London Victoria and London Bridge as well as East Grinstead. Close to Upper Warlingham is Whyteleafe railway station which has slower trains to London and Caterham departing every quarter of an hour.