N3 North London

N3 is a postcode district associated with Barnet. These profiles combine postcode-district records with wider-area context. The legacy composite score is experimental; source dates and limitations are listed below.

This page covers the N3 postcode district, which includes all postcodes starting with N3 (e.g. N3 3RG, N3 4AB, N3 5XX). All postcodes within N3 share the same district-level data.

Data last updated October 2026 · Official UK government sources