About this data
- Each local estimate is based on a few hundred interviews a year, so ONS averages five years of data to make it more reliable. Even so, ONS rates 13 areas' estimates for 2021 to 2025 as unreliable, mostly small authorities, and differences of a few percentage points between areas may be due to chance.
- From the Annual Population Survey, which asks around 140,000 adults a year whether they smoke cigarettes, the official measure of how many adults smoke. In 2020, the survey moved to telephone interviews only, which may have affected estimates.
This chart appears in Smoking.