Llandudno LL30 postcode area

Area evidence, not a full-postcode grade

The LL30 prefix covers multiple addresses and may cross council or warning-area boundaries. The 0–6 Data & Preparedness Score below counts documented sources for this district. It is separate from the conditional A–G disruption grade on a full-postcode report.

A–G grade for LL30: not assessed at district level. A complete postcode is needed to check live utility and road incidents and listed emergency-care distance. A grade appears only when all three inputs can be scored. How the full-postcode grade works.

Population density compared with the UK

UK average: 287 residents/km². Figures below cover the named councils.

• Conwy102 residents/km²UK council density percentile: 10/100

Preparedness conclusion for LL30

Use Welsh warnings for the exact location rather than extrapolating from Conwy's average.

Conwy is 185 residents/km² below the UK average of 287 residents/km².

Conwy's authority density covers communities beyond Llandudno. The comparison cannot resolve whether instructions for one part of the authority cover your accommodation or onward route. The English feed is outside its coverage here, so use Natural Resources Wales for warnings.

Local flood evidence for LL30

Recorded flooding

Conwy Council's completed flood-investigations list records an August 2013 event at St Andrews Avenue, Llandudno, investigated in January 2014. It is a named street record, not an assessment of every LL30 address.

Official warning area

Natural Resources Wales publishes a Llandudno flood warning area. Verify the boundary and current status for a full LL30 address before treating it as applicable.

Data & Preparedness Score 6/6

Warning coverage 2/2

A named official warning or alert area is documented locally. Check the mapped boundary for your address.

Official guidance 2/2

Local authority or regional preparedness guidance is linked below.

Data completeness 2/2

Council density is available. A local flood record is documented.

Emergency information for LL30

For a visit, keep the address and operator or accommodation contacts available offline. Read the named warning area and look for instructions specific to the destination before changing travel plans.

Conwy Council's local flood guide gives a 24-hour response line and explains when it can assist with gullies, streams and coastal incidents. Use that alongside the NRW notice for the affected Llandudno street.

• Conwy Council flooding advice and guidance
• UK Emergency Alerts
• UK government household preparedness

Check a full LL30 postcode

Enter the complete postcode, including its final three characters, to see the nine-indicator evidence breakdown, any supported provisional A–G grade, local incident results and a check against official flood-warning boundaries.

How the nine indicators apply

A district prefix covers many full postcodes. This page has no live A–G disruption grade and does not assess war or nuclear risk. Enter a complete postcode above to see the nine-indicator breakdown for its returned location.

Can contribute to a full-postcode grade

Infrastructure: matched electricity or water incidents where covered. Medical resources: straight-line distance to a listed emergency department. Road access: nearby active TfL events where covered. Missing feeds are excluded, not scored as zero.

Can be shown, without a risk score

Wind direction and speed, one-hour rainfall forecast, and elevation with sampled local relief. These do not establish exposure to a particular incident or protection at a building.

No verified postcode-level assessment

Military targeting, building structure and designated shelter availability. A postcode prefix cannot supply these details.

Full scoring method · Compare full postcodes · UK Emergency Alerts