Perth Flood Risk

Rivers and the sea Low a 0.1% to 1% chance in any year

Surface water Not mapped No national band is published for this source

Groundwater Not mapped SEPA publishes no groundwater likelihood band

Reservoirs Not mapped Reservoir flood maps are not published as a likelihood band in Scotland

Perth has a Low flood risk from rivers and the sea , with 0.8% of homes in a Medium or High band. The nearest gauge is 1.8 km away.

Perth has 47,893 residents and 23,166 homes. Ranked 278 of 656 in Scotland for rivers and sea flood risk.

What Does Perth's Flood Risk Classification Mean?

The flood risk band for rivers and the sea is Low , with 0.8% of homes in a Medium or High band. Unlike the Flood Zone, the band counts the defences that are actually in place, which is why the two can describe the same street differently and both be right.

Flood Zone versus flood risk band: the full comparison · What the Flood Zones mean

Which Postcode Districts Cover Perth?

Each district below is one postcode district that falls inside Perth. The band is the one shared by most of that district's postcodes, so it describes the district rather than a single street — enter a full postcode in the checker for one address. A district can cover more than one town, and the district pages linked from the checker are keyed to the town that holds most of its postcodes.

Postcode districts covering Perth, with the flood risk band shared by most of each district's postcodes. A district can span more than one local area, so its band is a summary and not a property-level answer.
Postcode district	Postcodes here	Rivers and sea band	Surface water addresses
PH1	755	Not mapped — no rivers-and-sea band covers this district	not published for this district
PH2	396	Not mapped — no rivers-and-sea band covers this district	not published for this district

"Not mapped" is not "no risk". It means no rivers-and-sea band covers that district in the source — surface water can still flood it, and both Camden and Islington flooded from surface water in July 2021 while carrying no mapped rivers-and-sea band.

What Else Is Near Perth?

Flood risk in Scotland How this nation classifies flood risk, and its gaps
What each flood risk level means The annual chance behind each band word