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Dumbarton

Town

Town in West Dunbartonshire, Scotland.

Dumbarton is an ONS built-up area: the land built up as one town, whatever council it is in. Figures for Dumbarton add up the census output areas (or, for claimants, the neighbourhoods) that sit mostly inside it, so they are close to, but not exactly, the town’s own.

Open in map

Radon Affected Area by town

Worked out by Open Index · 2022

Under 1%90% or more

About 71% of people in Dumbarton live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
19,716
552nd most populated of 1,209
ONS Census 2021 · 2021
People in radon Affected Area squares
71%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
88.6%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
3.3%
UK 3.9%
ONS via Nomis · Aug 2026

How Dumbarton compares

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

DumbartonMiddle
Population117 towns, Scotland · 2021
Population: every town in Scotland117 areas from 7,510 to 637,024. The middle area is 14,054. Dumbarton is 19,716.
19,71640th most populated
People in radon Affected Area squares117 towns, Scotland · 2022
People in radon Affected Area squares: every town in Scotland117 areas from 0.0% to 100.0%. The middle area is 4.0%. Dumbarton is 71.0%.
71%21st most people in radon Affected Areas
Gigabit broadband coverage117 towns, Scotland · Jan 2026
Gigabit broadband coverage: every town in Scotland117 areas from 17.5% to 99.8%. The middle area is 93.1%. Dumbarton is 88.6%.
88.6%28th lowest
Claimant rate117 towns, Scotland · Aug 2026
Claimant rate: every town in Scotland117 areas from 0.7% to 6.3%. The middle area is 3.1%. Dumbarton is 3.3%.
3.3%joint 44th highest

What is the population of Dumbarton?

Dumbarton had 19,716 usual residents at the census.

Dumbarton is the 552nd most populated of 1,209 in the UK.

Neighbourhoods in Dumbarton

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Bonhill - 02545No figureNo figure100.0%
Dalreoch - 01920No figureNo figure90.7%
Dalreoch - 02680No figureNo figure76.0%
Dalreoch - 03814No figureNo figure99.2%
Dalreoch - 04681No figureNo figure80.7%
Dalreoch - 05664No figureNo figure98.0%
Dalreoch - 06676No figureNo figure100.0%
Dalreoch - 07523No figureNo figure100.0%
Dalreoch - 08561No figureNo figure91.7%
Dumbarton Central - 01705No figureNo figure68.5%
Dumbarton Central - 02638No figureNo figure83.2%
Dumbarton Central - 03563No figureNo figure97.1%
Dumbarton Central - 04628No figureNo figure93.3%
Dumbarton Central - 05636No figureNo figure63.4%
Dumbarton Central - 06524No figureNo figure97.8%
Dumbarton East - 01648No figureNo figure90.4%
Dumbarton East - 02655No figureNo figure97.0%
Dumbarton East - 03839No figureNo figure99.1%
Dumbarton East - 041,006No figureNo figure75.6%
Dumbarton East - 05468No figureNo figure96.7%
Dumbarton North - 011,003No figureNo figure90.6%
Dumbarton North - 02658No figureNo figure82.6%
Dumbarton North - 03705No figureNo figure54.2%
Dumbarton North - 04967No figureNo figure93.3%
Dumbarton North - 05793No figureNo figure91.8%
Dumbarton North - 06672No figureNo figure99.7%
Garshake, Milton and Bowling - 03390No figureNo figure81.9%
Garshake, Milton and Bowling - 04570No figureNo figure98.6%
Garshake, Milton and Bowling - 05862No figureNo figure99.6%
Garshake, Milton and Bowling - 061,042No figureNo figure92.2%

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Council1

Postcode districts covering Dumbarton1

Middle areas in Dumbarton5

Towns near Dumbarton6

Dumbarton in brief

Dumbarton is a town in West Dunbartonshire, Scotland.

About 19,777 people lived in Dumbarton in mid-2024 (worked out by Open Index from NRS small-area estimates).

Dumbarton had 19,716 usual residents at the census.

About 71% of people in Dumbarton live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Dumbarton, 88.6% of homes and businesses could get gigabit-capable broadband in January 2026.

In Dumbarton, 3.3% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.