G84 postcode district: Helensburgh and around, Argyll and Bute

G84 is a postcode district in Scotland, with 872 postcodes in use in 5 sectors. It has postcodes in Helensburgh, Rhu, Garelochhead and 1 more place. Its council is Argyll and Bute.

Postcodes in use: 872
Sectors: 5
Council: Argyll and Bute
Places: 4 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in G84, and which are new since 2020

New since 2020: 16
In use before 2020: 856
Outline: where 5 or more new postcodes since 2020 lie together

Of the 872 postcodes in G84 that ONS places, 16 are new since 2020 and 856 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 56.0140, longitude -4.7556. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

G84 0FDDecember 2025 G84 8FENovember 2024 G84 4EZSeptember 2024 G84 4ESAugust 2024 G84 4ETJanuary 2024

Where the new postcodes lie together

6 new postcodes since 2020, outlined on the map. G84 4EZ, is the newest of them.
5 new postcodes since 2020, outlined on the map. G84 7FB, is the newest of them.

What broadband can you get in G84?

Ofcom reports on 847 of the 872 postcodes in G84. At 530 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit530 of 847

Postcodes where every home can get superfast805 of 847

Postcodes where some cannot get decent broadband2 of 847

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it