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Tresco

Ward

North Isles of Scilly. About 175 people (mid-2024 estimate) in 3.8 square kilometres.

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Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in Tresco live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
152
2nd least populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
11.2%
UK 87.8%
Ofcom · Jan 2026
Aged 15 to 64
79.7%
Joint 136th highest of 8,397
ONS Census 2021 · 2021

How Tresco compares

Each dot is a ward. The black line marks the middle one.

TrescoMiddle
Population4 wards, Isles of Scilly · 2021
Population: every ward in Isles of Scilly4 areas from 136 to 1,593. The middle area is 163. Tresco is 152.
1522nd least populated
People in radon Affected Area squares4 wards, Isles of Scilly · 2022
People in radon Affected Area squares: every ward in Isles of Scilly4 areas from 100.0% to 100.0%. The middle area is 100.0%. Tresco is 100.0%.
100%
Gigabit broadband coverage4 wards, Isles of Scilly · Jan 2026
Gigabit broadband coverage: every ward in Isles of Scilly4 areas from 0.0% to 58.7%. The middle area is 33.6%. Tresco is 11.2%.
11.2%2nd lowest
Aged 15 to 644 wards, Isles of Scilly · 2021
Aged 15 to 64: every ward in Isles of Scilly4 areas from 54.4% to 79.7%. The middle area is 58.6%. Tresco is 79.7%.
79.7%highest

What is the population of Tresco?

Tresco had 152 usual residents at the census.

Tresco is the 2nd least populated of 8,397 in the UK.

Figures for the whole of Isles of Scilly

These figures are published for the whole of Isles of Scilly, not for each ward, so they describe all of Isles of Scilly and not Tresco alone. See Isles of Scilly

Deprivation score
12.7
Joint 57th least deprived of 296
MHCLG · England only
Population estimate
2,299
Down 3.5% in a year
ONS population estimates · 2025
Median sale price
£545,000
Joint 23rd most expensive of 318
Worked out by Open Index
Full-fibre broadband coverage
50.2%
UK 81.0%
Ofcom · Jan 2026
Tresco in brief

Tresco had 152 usual residents at the census.

About 100% of people in Tresco live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Tresco, 11.2% of homes and businesses could get gigabit-capable broadband in January 2026.

79.7% of residents in Tresco were aged 15 to 64 at the census.