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SA3 4NB

Mumbles · Swansea · Wales

Updated September 2026

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Location overview

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Post town
Swansea
Ward
Mumbles
Local authority
Swansea
Constituency
Gower
Postcode district
SA3
Postcode sector
SA3 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
SA3 4AP 17 m
SA3 4AJ 82 m
SA3 4NA 84 m
SA3 4LP 96 m
SA3 4AN 101 m
Complete postcode fields and official codes
Postcode
SA3 4NB
Status
Terminated
Introduced
1 January 1980
Terminated
1 April 2006
Postcode area
SA
Postcode district
SA3
Postcode sector
SA3 4
Latitude
51.573427
Longitude
-4.004489
British National Grid easting
261,187
British National Grid northing
187,966

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Swansea · W06000011
Electoral ward
Mumbles · W05001056
Parish or community
W04000583
Westminster constituency
Gower · W07000097
Output area
W00004414
Lower layer super output area
Swansea 031E · W01000827
Middle layer super output area
Swansea 031 · W02000198

Postcode source versions

Explore SA3

Property

View all property records
1 recorded sale at this postcode
Address Date Price
Hillcroft, The Grove, Mumbles, Swansea, SA3 4NB 26 February 1999 £58,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
14
Primary
0
Secondary
0

  1. Oystermouth Primary School

    Welsh establishment

    252 m

  2. Newton Primary School

    Welsh establishment

    798 m

  3. Grange Primary School

    Welsh establishment

    1.1 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
491
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 219
  • Public order 61
  • Anti social behaviour 56
  • Criminal damage and arson 46
  • Other theft 29

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
SA3 4 residents
7,528

Age bands in SA3 4

Wider postcode sector
Age 0 to 14
13.3%

999 residents

Age 15 to 24
8.5%

639 residents

Age 25 to 44
16.8%

1,268 residents

Age 45 to 64
28.7%

2,159 residents

Age 65 and over
32.7%

2,465 residents

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
100%

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

4

within 5 km straight-line

  • KINGS ROAD SURGERY

    2-6 KINGS ROAD, MUMBLES, SWANSEA, SA3 4AJ

    ODS code W98055

    82 m

  • THE MUMBLES MEDICAL PRACTICE

    10 WEST CROSS AVENUE, WEST CROSS, SWANSEA, SA3 5UA

    ODS code W98033

    830 m

  • UNIVERSITY HEALTH CENTRE

    PENMAEN RESIDENCES, SINGLETON PARK, SWANSEA, SA2 8PG

    ODS code W98053

    4.4 km

  • SKETTY & KILLAY MEDICAL CENTRE

    SKETTY SURGERY, DE LA BECHE ROAD, SKETTY, SWANSEA, SA2 9EA

    ODS code W98021

    5.0 km

Nearby transport

  • Underhill Park

    BCT · Oystermouth

    0.1 miles

  • Oystermouth Primary School

    BCT · Oystermouth

    0.1 miles

  • Newton Road

    BCT · Oystermouth

    0.2 miles

  • Cambridge Road

    BCT · Thistleboon

    0.2 miles

  • Langland Corner

    BCT · Langland Bay

    0.2 miles

Evidence in context

Schools

14 open schools are in scope, including 0 primary and 0 secondary schools. Oystermouth Primary School is the nearest published school at 252 m.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

491 published events cover 12 months, averaging 40.917 events per published month. The largest recorded category is Violence and sexual offences with 219 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.