Kent · England
Hartley population
16,302people · latest estimate
Hartley has a population of 16,302, making it the 22nd largest place in Kent.
Year-by-year official estimates for the wider area: Sevenoaks population trends, 2001–2025.
Hartley 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 Hartley sits in postcode district DA3.
Council tax
The area Band D council tax for Sevenoaks, the billing authority covering Hartley, is £2,522 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.