Territory

Postcode territory planning for UK sales teams

8 min readUpdated 15 August 2026

UK postcodes give you a ready-made hierarchy for territory: area, district, sector, unit. Used properly, it removes almost all territory arguments, because every patch has a name that everyone recognises.

The UK postcode hierarchy, and which level to allocate at

LevelExampleRough scaleGood for
AreaSNDozens of districtsRegional ownership
DistrictSN25Thousands to tens of thousands of addressesAgency allocation
SectorSN25 2Hundreds to low thousands of addressesTeam workbooks
UnitSN25 2QTAbout 15 delivery pointsIndividual routing and suppression

Allocate districts to agencies, sectors to teams

Give an agency whole districts so they can plan a week, then let their managers cut sector-level workbooks inside those districts for daily work. Allocating at the wrong level is what produces both overlap and under-coverage.

Every allocation needs an owner and an expiry. Areas that were handed out eighteen months ago and never released are dead stock.

Balance patches on density, not on map area

Two districts of identical geographic size can differ by a factor of ten in delivery points. Balance on address count and housing type, and account for travel: a rural sector with 400 addresses spread over twelve miles is not equivalent to an urban sector with 400 addresses on eight streets.

  • Count delivery points per sector before allocating
  • Separate residential from business addresses if your campaign only sells to one
  • Flag high-rise and multi-occupancy postcodes — the door count is much higher than the map suggests
  • Keep a live view of which patches have been worked recently, so re-runs are deliberate

Layer in data to prioritise, not to replace judgement

Public UK datasets let you rank sectors before you spend a day in them. Energy Performance Certificate data indicates property age, heating type and efficiency band; HM Land Registry Price Paid data indicates values and turnover; Indices of Deprivation indicate affordability. Used together they tell you which sectors to work first — not who will buy.

Frequently asked questions

How many postcode districts are there in the UK?
There are roughly 2,976 postcode districts in the UK, sitting inside around 120 postcode areas, and covering approximately 1.8 million individual postcodes and more than 33 million delivery points.
What is the difference between a postcode district and a sector?
A district is the outward part of the postcode, such as SN25. A sector adds the first digit of the inward part, such as SN25 2, and is usually the right size for a team's daily canvassing workbook.

Run this on real UK address data

The Closer puts every UK delivery point on a live map, logs an outcome on every door and reports coverage and conversion as your teams work.

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