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Postcode sector · Longfield

Affluence in DA3 9

How DA3 9 ranks on deprivation and income, and the work and qualifications behind it.

Council
Sevenoaks
Region
South East
Population
1,516 (2024)
Deprivation

How well off DA3 9 is

On the English Indices of Deprivation 2025, DA3 9 scores 10.0 out of 10, placing it among the most affluent fifth of England. Scores are ranked within England only, so they can’t be compared across UK nations.

Overall score
10.0/ 10
Most deprivedLeast deprived
By category, lowest first
  • Barriers to housing and services5.0
  • Living environment6.0
  • Crime8.0
  • Health and disability9.0
  • Income10.0
  • Employment10.0
  • Education and skills10.0
  • Children in low-income families10.0
  • Older people in low-income households10.0
Income

Household income

Average yearly household income before tax (2022/23), estimated for local neighbourhoods.

Annual income
£63,312
Before tax, all sources
England
£55,856
Above the national average
Higher than
73%
Of neighbourhoods in England and Wales
Work

Who is in work

41.7% of adults in DA3 9 are in work, below the England average of 55.7%. 48.1% are retired and 3.7% are full-time students.

DA3 9England
Employee, full-time23.7%34.3%
Employee, part-time10%11.9%
Self-employed8%9.5%
Unemployed0.4%2.9%
Full-time student3.7%7.9%
Retired48.1%21.5%
Looking after home or family2.6%4.8%
Long-term sick or disabled2.2%4.1%
Other1.3%3.1%
Occupations

Social grade

42% of adults in DA3 9 work in managerial or professional jobs, above the England average of 33.2%.

DA3 9England
Higher managerial & professional17.6%13.2%
Lower managerial & professional24.4%19.9%
Intermediate15.1%11.4%
Small employers & self-employed11.9%10.6%
Lower supervisory & technical4.3%5.3%
Semi-routine9.8%11.3%
Routine5.6%12%
Never worked & long-term unemployed7.5%8.5%
Full-time students3.7%7.7%
Education

Highest qualification

30.8% of adults in DA3 9 hold a degree or equivalent, broadly in line with the England average of 33.9%. 22.7% have no qualifications.

DA3 9England
Degree level or above30.8%33.9%
A level or equivalent13.5%16.9%
GCSE grade 4/C or above14.1%13.3%
Below GCSE grade 4/C8.7%9.7%
Apprenticeship6.6%5.3%
Other qualifications3.7%2.8%
No qualifications22.7%18.1%

Sources: English Indices of Deprivation 2025; ONS small area income estimates; Census 2021 (ONS). Open Government Licence v3.0.

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