Lincolnshire · England
Gainsborough population
20,537people · latest estimate
Gainsborough has a population of 20,537, making it the 7th largest place in Lincolnshire. In 2005 the World Gazetteer recorded 19,871, a rise of 3.4% since.
On this page 6 sections
The other populations of Gainsborough
The same name covers more than one area, and each has its own figure.
| What you mean | Population | Source |
|---|---|---|
| The place itself The populated settlement, roughly the built-up core. |
20,537 | GeoNames |
| The built-up area Continuous development, where buildings sit less than 200m apart. Drawn from where the buildings are, not where the council boundary is. |
21,910 | ONS Census 2021 (2021) |
| The place in 2005 The same settlement twenty years earlier. |
19,871 | World Gazetteer (2005) |
Why these differ: which population figure is right? · compare with another place
Year-by-year official estimates for the wider area: West Lindsey population trends, 2001–2025.
Gainsborough in context
Distances are straight-line from the settlement's recorded coordinates. The 10 km figure sums the recorded places within that radius, so it describes how built-up the surroundings are rather than people per square kilometre.
The centre of Gainsborough sits in postcode district DN21.
Council tax
The area Band D council tax for West Lindsey, the billing authority covering Gainsborough, is £2,354 for 2026–27.
From MHCLG's council tax statistics (Table 9): the area average including police, fire and parish precepts, so it is the council's figure rather than the town's, and your own band depends on your property's 1991 valuation.