AB postcode district map, Aberdeen
Supplier statuses last checked .
The AB postcode area covers 34 districts and 17,413 live postcodes, from AB10 to AB99. It is centred on Aberdeen and also covers Peterhead, Inverurie, Blackburn, Ellon and Portlethen.
Districts here average 512 postcodes.
Where the AB districts sit
12 districts are plotted without a label where labels would overlap; every one is in the table below.
Where AB sits
It falls across Aberdeenshire, Aberdeen City and Moray.
Every AB postcode is in Scotland. Water there is regulated by the Scottish Environment Protection Agency, and Temporary Use Bans under the Water Industry Act 1991 do not apply in Scotland at all.
Water supply across AB
All 34 AB districts are supplied by Scottish Water, which is notable at this size: an area with this many districts usually crosses at least one supply boundary, and this one does not.
We are re-checking Scottish Water's status. It was last confirmed on 17 August 2026 as no restrictions, and until it is confirmed again this page does not assert a current position for it.
The shape of the AB area
The districts are wildly uneven: AB42 holds 1,253 postcodes around Peterhead and AB99 holds 3, a ratio of about 418 to one. They divide into 111 sectors.
The numbering is not continuous. AB runs up to 99 but has only 34 districts, so 56 numbers are unused:.
Several districts share a settlement, which is a common source of confusion when a form rejects an address: AB10, AB11, AB15, AB16, AB22, AB23, AB24, AB25 and AB99 all point at Aberdeen, AB13, AB14 and AB32 all point at Westhill and AB34, AB35 and AB36 all point at Ballater.
What borders AB
AB sits next to DD (Dundee) to the south, KY (Kirkcaldy) to the south, IV (Inverness) to the west, PH (Perth) to the west and FK (Falkirk) to the south west.
AB districts, settlements and water supply
| District | Principal settlement | Water company | Hosepipe ban status |
|---|---|---|---|
| AB10 | Aberdeen | Scottish Water | Check with your supplier |
| AB11 | Aberdeen | Scottish Water | Check with your supplier |
| AB12 | Portlethen | Scottish Water | Check with your supplier |
| AB13 | Westhill | Scottish Water | Check with your supplier |
| AB14 | Westhill | Scottish Water | Check with your supplier |
| AB15 | Aberdeen | Scottish Water | Check with your supplier |
| AB16 | Aberdeen | Scottish Water | Check with your supplier |
| AB21 | Blackburn | Scottish Water | Check with your supplier |
| AB22 | Aberdeen | Scottish Water | Check with your supplier |
| AB23 | Aberdeen | Scottish Water | Check with your supplier |
| AB24 | Aberdeen | Scottish Water | Check with your supplier |
| AB25 | Aberdeen | Scottish Water | Check with your supplier |
| AB30 | Laurencekirk | Scottish Water | Check with your supplier |
| AB31 | Banchory | Scottish Water | Check with your supplier |
| AB32 | Westhill | Scottish Water | Check with your supplier |
| AB33 | Alford | Scottish Water | Check with your supplier |
| AB34 | Ballater | Scottish Water | Check with your supplier |
| AB35 | Ballater | Scottish Water | Check with your supplier |
| AB36 | Ballater | Scottish Water | Check with your supplier |
| AB37 | Grantown-on-Spey | Scottish Water | Check with your supplier |
| AB38 | Charlestown of Aberlour | Scottish Water | Check with your supplier |
| AB39 | Stonehaven | Scottish Water | Check with your supplier |
| AB41 | Ellon | Scottish Water | Check with your supplier |
| AB42 | Peterhead | Scottish Water | Check with your supplier |
| AB43 | Fraserburgh | Scottish Water | Check with your supplier |
| AB44 | Macduff | Scottish Water | Check with your supplier |
| AB45 | Banff | Scottish Water | Check with your supplier |
| AB51 | Inverurie | Scottish Water | Check with your supplier |
| AB52 | Alford | Scottish Water | Check with your supplier |
| AB53 | Turriff | Scottish Water | Check with your supplier |
| AB54 | Huntly | Scottish Water | Check with your supplier |
| AB55 | Keith | Scottish Water | Check with your supplier |
| AB56 | Buckie | Scottish Water | Check with your supplier |
| AB99 | Aberdeen | Scottish Water | Check with your supplier |
Principal settlement is the town or city each district sits in or nearest to, derived from OS Open Names. It is not the Royal Mail post town, which is licensed data and not published openly. Status is resolved live from each company’s own notice.
Water hardness in AB
No water company covering AB publishes hardness figures as open data. The gap is named per district below so you know who to ask.
| District | Hardness | As published | Supply zone | Published by |
|---|---|---|---|---|
| AB10 | Not published by Scottish Water. Check with your supplier. | |||
| AB11 | Not published by Scottish Water. Check with your supplier. | |||
| AB12 | Not published by Scottish Water. Check with your supplier. | |||
| AB13 | Not published by Scottish Water. Check with your supplier. | |||
| AB14 | Not published by Scottish Water. Check with your supplier. | |||
| AB15 | Not published by Scottish Water. Check with your supplier. | |||
| AB16 | Not published by Scottish Water. Check with your supplier. | |||
| AB21 | Not published by Scottish Water. Check with your supplier. | |||
| AB22 | Not published by Scottish Water. Check with your supplier. | |||
| AB23 | Not published by Scottish Water. Check with your supplier. | |||
| AB24 | Not published by Scottish Water. Check with your supplier. | |||
| AB25 | Not published by Scottish Water. Check with your supplier. | |||
| AB30 | Not published by Scottish Water. Check with your supplier. | |||
| AB31 | Not published by Scottish Water. Check with your supplier. | |||
| AB32 | Not published by Scottish Water. Check with your supplier. | |||
| AB33 | Not published by Scottish Water. Check with your supplier. | |||
| AB34 | Not published by Scottish Water. Check with your supplier. | |||
| AB35 | Not published by Scottish Water. Check with your supplier. | |||
| AB36 | Not published by Scottish Water. Check with your supplier. | |||
| AB37 | Not published by Scottish Water. Check with your supplier. | |||
| AB38 | Not published by Scottish Water. Check with your supplier. | |||
| AB39 | Not published by Scottish Water. Check with your supplier. | |||
| AB41 | Not published by Scottish Water. Check with your supplier. | |||
| AB42 | Not published by Scottish Water. Check with your supplier. | |||
| AB43 | Not published by Scottish Water. Check with your supplier. | |||
| AB44 | Not published by Scottish Water. Check with your supplier. | |||
| AB45 | Not published by Scottish Water. Check with your supplier. | |||
| AB51 | Not published by Scottish Water. Check with your supplier. | |||
| AB52 | Not published by Scottish Water. Check with your supplier. | |||
| AB53 | Not published by Scottish Water. Check with your supplier. | |||
| AB54 | Not published by Scottish Water. Check with your supplier. | |||
| AB55 | Not published by Scottish Water. Check with your supplier. | |||
| AB56 | Not published by Scottish Water. Check with your supplier. | |||
| AB99 | Not published by Scottish Water. Check with your supplier. | |||
Hardness is published per census area, not per postcode, so these figures characterise a district rather than measuring one address. They are a scale and taste matter, not a safety one. Hardness data version wessex-water@2022-2025+yorkshire-water@2026.
Download the AB data
No signup, no email wall. GeoJSON carries the district points, the supplier and the live status, so it can be dropped straight into a map.
District positions are averaged postcode centroids from OS Code-Point Open. They show roughly where a district sits, not where its boundary runs, and are not legal boundaries.
Frequently asked questions
How many postcode districts are in the AB area?
There are 34 AB postcode districts, running from AB10 to AB99, and they contain 17,413 live postcodes across 111 sectors.
What towns does the AB postcode area cover?
AB covers Aberdeen, Peterhead, Inverurie, Blackburn, Ellon and Portlethen. The area takes its name from Aberdeen, and each district is listed with its settlement in the table on this page.
Which water company supplies AB postcodes?
Scottish Water supplies all 34 AB districts. Supply boundaries follow the pipe network rather than postcode geography, so confirm against your water bill if you are near the edge of the area.
Why do AB10 and AB11 both say Aberdeen?
AB10, AB11, AB15, AB16, AB22, AB23, AB24, AB25 and AB99 all serve Aberdeen, covering different parts of it. A single town routinely needs more than one postcode district once it passes a few thousand delivery points, so this is normal rather than an error in an address.
Can I download a free AB postcode map?
Yes. This page offers the AB districts as GeoJSON, CSV and SVG, free and with no signup or email address required. The GeoJSON carries each district's position, its water company and its current restriction status, so it can be dropped straight into a mapping tool.
Why is the AB area called Aberdeen when it covers Peterhead?
AB takes its letters from Aberdeen, where the sorting office that served the area was based when the code was allocated. Peterhead is the largest settlement in the area today, in AB42, but the area code follows the historic sorting geography rather than current population.
Which councils cover the AB postcode area?
AB reaches into Aberdeenshire, Aberdeen City and Moray. A postcode area is not a council area: they were drawn for different purposes and a single district can sit across a council boundary, so your postcode does not tell you which authority you pay.