Greater London · England
Wallington population
20,850people · latest estimate
Wallington has a population of 20,850, making it the 81st largest place in Greater London.
Year-by-year official estimates for the wider area: Sutton population trends, 2001–2025.
Wallington in context
Distances are straight-line from the settlement's recorded coordinates. The 10 km figure sums the recorded places within that radius, so it describes how built-up the surroundings are rather than people per square kilometre.
The centre of Wallington sits in postcode district SM6.
Council tax
The area Band D council tax for Sutton, the billing authority covering Wallington, is £2,379 for 2026–27.
From MHCLG's council tax statistics (Table 9): the area average including police, fire and parish precepts, so it is the council's figure rather than the town's, and your own band depends on your property's 1991 valuation.