SA66 7UU Carmarthenshire
Live postcode, introduced January 1980. Ward: Llanboidy.
Streets
- Rhoswyn, Efailwen: 7 addresses
- Crud Yr Awel, Pant-y-Caws: 3 addresses
- Unnamed street near Rhoswyn, Efailwen: 3 addresses
- A478, Sir Benfro - Pembrokeshire: 3 addresses
- A478, Sir Benfro - Pembrokeshire: 1 address
Council tax
What each band costs in Carmarthenshire in 2026-27: Band D £2,351 a year on average, including the police and community council charges.
| A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|
| £1,567 | £1,829 | £2,090 | £2,351 | £2,874 | £3,396 | £3,919 | £4,702 | £5,486 |
Homes by band in the neighbourhood around this postcode: most are in band E (38% of about 960 homes).
Planning and heritage
- Conservation area: no postcode centre in this postcode is in one.
- Listed buildings within 100 m of this postcode: 1.
- Article 4 directions, tree preservation orders and green belt: Wales has no national record of these; the council's planning department holds them.
Listed buildings
- Soar, grade II
Flood risk
Rivers, the sea or surface water: of the 17 address points in this postcode, 0 at high risk, 0 at medium risk and 1 at low risk. Each counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: none is in an area at risk. Surface water and small watercourses alone: 0 at high risk, 0 at medium risk and 1 at low risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. The map allows for flood defences. Address points are every property record (UPRN) in the postcode, each counted if it is in an area or within 5 m of one (the maps stop at building walls); a few are not homes, such as garages, business units or caravan pitches. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre is in flood zone 2 or 3. Welsh zones include an allowance for climate change.
Height above sea level
The postcode's 17 addresses are between 207 m and 209 m above sea level (208 m on average).
Broadband
Superfast 0%, ultrafast 0%, gigabit 0% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Clunderwen 23,000 journeys in 2024–25 | 6.2 km (3.9 miles) |
| Narberth 22,000 journeys in 2024–25 | 10.7 km (6.7 miles) | |
| Whitland 45,000 journeys in 2024–25 | 10.9 km (6.8 miles) | |
| Bus stops | 2 stops within 400 m (0.2 miles), 2 within 800 m (0.5 miles); nearest Efailwen | 20 m |
| Airport with scheduled flights | Cardiff International Airport CWL | 110 km (68 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| Pharmacies | Clynderwen Pharmacy | 6.1 km (3.8 miles) |
| Hospital | Withybush General Hospital | 19.7 km (12 miles) |
| Police station | Dyfed & Powys Police Crymych Police Station | 9.5 km (5.9 miles) |
Parks and green space
No parks, play areas, playing fields or allotments within 3 km (1.9 miles).
Landmarks
The nearest historic landmark is Maen Pica, a scheduled monument, 280 m west. 3 listed buildings are within 1 km (0.6 miles).
| Name | What it is | From the postcode's centre |
|---|---|---|
| Maen Pica | Scheduled monument | 280 m west |
| Capel Nebo Standing Stone | Scheduled monument | 420 m (0.3 miles) east |
| Round Barrow SE of Goodwins Row, Efailwen | Scheduled monument | 830 m (0.5 miles) north-east |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Allt Llwyn-yr-ebol | Wood | 1 km (0.6 miles) north-west |
| Allt Clyn-gwyn | Wood | 1.2 km (0.8 miles) north-west |
| Allt Rhydymerydd | Wood | 1.5 km (0.9 miles) east |
| Allt Pantyrodyn | Wood | 1.8 km (1.1 miles) east |
| Portis Bach | Hill | 2.1 km (1.3 miles) south |
| Cwm-barau | Valley | 4.9 km (3.1 miles) south-west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 1.8 | 40 | 10 |
| Fine particles (PM2.5) | 3.8 | 20 | 5 |
| Particles (PM10) | 6.7 | 40 | 15 |
All three are within both the UK limits and the WHO guidelines.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 70 to 74 | 1 | 0 |
| 65 to 69 | 4 | 0 |
| 60 to 64 | 4 | 0 |
| 55 to 59 | 3 | 0 |
| Under 55 | 5 | 17 |
12 of the postcode's 17 addresses are modelled at 55 dB or more from road traffic, above the WHO guidelines.
People and work
Who lives here
| Around this postcode | Wales | |
|---|---|---|
| Median age | 53 | 43 |
| Children under 15 | 12% | 17% |
| Aged 65 and over | 29% | 21% |
Homes
| Around this postcode | Wales | |
|---|---|---|
| Owned (outright or with a mortgage) | 83% | 66% |
| Owned outright | 56% | 38% |
| Shared ownership | 2% | under 1% |
| Social rented | 7% | 17% |
| Private rented | 8% | 17% |
Work and commuting
| Around this postcode | Wales | |
|---|---|---|
| Adults (16 and over) in work | 55% | 54% |
| Unemployment (of those working or looking for work) | 4% | 6% |
| Retired (of adults) | 29% | 25% |
| Long-term sick or disabled (of adults) | 5% | 6% |
| Work mainly from home (of those in work) | 39% | 26% |
| Travel to work by car or van | 58% | 61% |
| By train, Underground, metro or tram | 0% | under 1% |
| By any public transport, including bus | under 1% | 3% |
| On foot or by bicycle | 2% | 8% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 15% | 60% |
| Work 30 km (19 miles) or more away | 16% | 10% |
Education and languages
| Around this postcode | Wales | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 32% | 32% |
| No qualifications | 18% | 20% |
| Apprenticeship as highest qualification | 6% | 6% |
| Main language English or Welsh (aged 3 and over) | 99% | 97% |
| Cannot speak English well or at all | 0% | under 1% |
Deprivation
The neighbourhood around this postcode is in decile 5 of 10 on the Welsh Index of Multiple Deprivation 2025, where 1 is the most deprived tenth of Wales's 1,917 neighbourhoods and 10 the least.
The full dossier for this postcode's main street is on Rhoswyn.