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Alstone & St Mark's

Middle area

North west Cheltenham. 10,641 people in 2.2 square kilometres.

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Radon Affected Area by middle area

Worked out by Open Index · 2022

Under 1%90% or more

About 75% of people in Alstone & St Mark's live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£280,000
Joint 3,347th cheapest of 7,259
Worked out by Open Index
Population
10,439
Joint 856th most populated of 9,448
ONS Census 2021 · 2021
People in radon Affected Area squares
75%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
99.3%
UK 87.8%
Ofcom · Jan 2026

Recorded crime in Alstone & St Mark's

Gloucestershire Constabulary supplied no data to police.uk from February to August 2026, so there is no figure for this period.

How Alstone & St Mark's compares

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

Alstone & St Mark'sMiddle
Median sale price15 middle areas, Cheltenham · 2025
Median sale price: every middle area in Cheltenham15 areas from £250,000 to £558,500. The middle area is £320,000. Alstone & St Mark's is £280,000.
£280,0005th cheapest
Population15 middle areas, Cheltenham · 2021
Population: every middle area in Cheltenham15 areas from 5,561 to 12,197. The middle area is 7,577. Alstone & St Mark's is 10,439.
10,4392nd most populated
People in radon Affected Area squares15 middle areas, Cheltenham · 2022
People in radon Affected Area squares: every middle area in Cheltenham15 areas from 0.0% to 100.0%. The middle area is 80.0%. Alstone & St Mark's is 75.0%.
75%7th fewest people in radon Affected Areas
Gigabit broadband coverage15 middle areas, Cheltenham · Jan 2026
Gigabit broadband coverage: every middle area in Cheltenham15 areas from 85.0% to 99.9%. The middle area is 92.9%. Alstone & St Mark's is 99.3%.
99.3%3rd highest

What is the population of Alstone & St Mark's?

Alstone & St Mark's had 10,439 usual residents at the census.

Alstone & St Mark's is the joint 856th most populated of 9,448 in the UK.

Figures for the whole of Cheltenham

These figures are published for the whole of Cheltenham, not for each middle area, so they describe all of Cheltenham and not Alstone & St Mark's alone. See Cheltenham

Average house price
£322,758
Up 0.3% in a year
HM Land Registry · Jul 2026
Median full-time pay
£41,399
111th highest paid of 348
ONS earnings survey · 2025
House price to pay
7.8×
Joint 143rd least affordable of 348
Worked out by Open Index
Deprivation score
13.0
Joint 62nd least deprived of 296
MHCLG · England only
Alstone & St Mark's in brief

The median price paid for a home in Alstone & St Mark's was £280,000 in 2025.

Alstone & St Mark's had 10,439 usual residents at the census.

About 75% of people in Alstone & St Mark's live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Alstone & St Mark's, 99.3% of homes and businesses could get gigabit-capable broadband in January 2026.