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SN1 3

SN1 postcode district

Updated September 2026

Sector overview

Postcode units
299
Coordinate coverage
100%

Part of the SN1 postcode district.

Postcode units

251–299 of 299 units

  • SN1 3TP
  • SN1 3TR
  • SN1 3TS
  • SN1 3TT
  • SN1 3TU
  • SN1 3TW
  • SN1 3TX
  • SN1 3TY
  • SN1 3TZ
  • SN1 3UA
  • SN1 3UB
  • SN1 3UD
  • SN1 3UE
  • SN1 3UF
  • SN1 3UG
  • SN1 3UH
  • SN1 3UJ
  • SN1 3UL
  • SN1 3UN
  • SN1 3UP
  • SN1 3UQ
  • SN1 3UT
  • SN1 3UU
  • SN1 3UW
  • SN1 3UX
  • SN1 3UY
  • SN1 3WA
  • SN1 3WB
  • SN1 3WD
  • SN1 3WE
  • SN1 3WF
  • SN1 3WG
  • SN1 3WH
  • SN1 3WJ
  • SN1 3WQ
  • SN1 3WR
  • SN1 3WS
  • SN1 3WT
  • SN1 3WU
  • SN1 3WX
  • SN1 3WZ
  • SN1 3XG
  • SN1 3XJ
  • SN1 3XN
  • SN1 3XQ
  • SN1 3XS
  • SN1 3ZJ
  • SN1 3ZQ
  • SN1 3ZY
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Map centre

Centred on the average coordinates of published units. This is not a sector boundary.

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Other SN1 sectors

  • SN1 2 165 current
  • SN1 4 151 current
  • SN1 5 130 current
  • SN1 7 102 current
  • SN1 1 91 current
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