Data / Population / Slough

Population in Slough

Population in Slough was 167,450 in 2025, according to the Office for National Statistics (United Kingdom). That is up 0.4% from 2024.

2025, persons167,450
Change on 2024+0.4%
Series high167,4502025
Series low140,7132011

Population in Slough, 2011 to 2025

140K150K160K170K201120142017202020252011: 140,713 persons2012: 143,095 persons2013: 144,880 persons2014: 147,313 persons2015: 150,104 persons2016: 152,565 persons2017: 154,573 persons2018: 155,915 persons2019: 157,632 persons2020: 158,281 persons2021: 158,448 persons2022: 159,765 persons2023: 163,608 persons2024: 166,739 persons2025: 167,450 persons
persons. Source: Office for National Statistics, Population estimates, local authority based by single year of age: all ages, both sexes, mid-year (ONS, Nomis NM_2002_1). Retrieved 2026-10-11, published 2026-07-29.
All 15 values
Periodpersons
2025167,450
2024166,739
2023163,608
2022159,765
2021158,448
2020158,281
2019157,632
2018155,915
2017154,573
2016152,565
2015150,104
2014147,313
2013144,880
2012143,095
2011140,713

Compared with South East

Place2025
Slough167,450
South East9,691,844

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). Norway: Statistics Norway, 1 January. United States: Census Bureau population estimates for 1 July. United Kingdom regions and local authorities: Office for National Statistics estimates for 30 June. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

Office for National Statistics. Population estimates, local authority based by single year of age: all ages, both sexes, mid-year (ONS, Nomis NM_2002_1). Contains public sector information licensed under the Open Government Licence v3.0. https://www.nomisweb.co.uk/api/v01/dataset/NM_2002_1.data.json?geography=TYPE480,TYPE424&gender=0&c_age=200&measures=20100&time=2011,latest. Retrieved 2026-10-11.

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Questions

What is the population in Slough?

Population in Slough was 167,450 in 2025, according to the Office for National Statistics (United Kingdom). That is up 0.4% from 2024.

Where does this figure come from?

Office for National Statistics (United Kingdom). Population estimates, local authority based by single year of age: all ages, both sexes, mid-year (ONS, Nomis NM_2002_1). Retrieved by Invokely on 2026-10-11.

What was the highest population in Slough?

167,450 in 2025, the highest value since 2011 in this series.

Population elsewhere in South East

Related statistics for Slough

All statistics for Slough