HA4 is a postcode district associated with Hillingdon. These profiles combine postcode-district records with wider-area context. The legacy composite score is experimental; source dates and limitations are listed below.
Safety
F75% below avg
Schools
A+100% Good or Outstanding
Transport
B1 rail stations nearby
Afford.
FMedian £548,000
Environ.
CData under review
Health
B8 GP practices nearby
Education
BAbove average
Community
BStrong community
Compare with similar districts
This page covers the HA4 postcode district, which includes all postcodes starting with HA4 (e.g. HA4 3RG, HA4 4AB, HA4 5XX). All postcodes within HA4 share the same district-level data.
Data last updated October 2026 · Official UK government sources