Local authority · South West

Dorset: population and statistics

Dorset has a population of 391,036 (2025) across 2,490.9 km², or 157 people per km². It ranks 22 of 361 local authorities by population. Its population is growing: +5.5% between 2015 and 2025.

  • 391,036 residents
  • 2,490.9 km²
  • 157 people/km²
Location map: Dorset

Dorset in numbers

Population
391,036
ranked 22 of 361 +5.5%
Population density
157people/km²
ranked 300 of 361
Area
2,491km²
ranked 19 of 361
Share of residents aged 65 and over
31.2%%
ranked 5 of 361
Dwellings (Council Tax stock)
188,910dwellings
ranked 17 of 318
Business sites (local units)
20,570sites
ranked 21 of 361
Out-of-work benefit claimants, share of residents aged 16-64
2.3%%
ranked 288 of 361

Population of Dorset over time

367,682376,482385,282394,0822015 : 370,7282016 : 372,4162017 : 374,6752018 : 375,6042019 : 377,6992020 : 377,6702021 : 381,2452022 : 383,1912023 : 385,9342024 : 389,3412025 : 391,036201520172019202120232025

Dorset had 370,728 residents in 2015 and 391,036 in 2025.

YearPopulation
2020377,670
2021381,245
2022383,191
2023385,934
2024389,341
2025391,036

All indicators for Dorset

Value for the area, then the regional average and the UK median (for counts: regional and UK totals). The gauge places the area between the lowest and highest value in the UK.

Population

IndicatorDorsetSouth WestUKPositionRank
Share of residents aged 65 and over (2025)31.2%23.2%20.4%ranked 5 of 361
Share of residents aged under 16 (2025)14.5%16.2%17.4%ranked 337 of 361

Housing

IndicatorDorsetSouth WestUKPositionRank
Dwellings (Council Tax stock) (2026)188,910 dwellings2,721,25027,429,300ranked 17 of 318
Dwellings built before 1940 (2026)27.1%31.7%31.6%ranked 206 of 318
Dwellings built since 2000 (2026)18.1%20.6%18.1%ranked 158 of 318
Households (Census 2021) (2021)169,261 households143,79761,440ranked 18 of 318
Households living in a house or bungalow (2021)83.4%80.6%84.7%ranked 168 of 318
Households living in a flat or maisonette (2021)15.4%18.6%14.8%ranked 153 of 318
Owner-occupied households (incl. shared ownership) (2021)71.4%66.9%67.3%ranked 81 of 318
Households renting privately (2021)16.3%19.7%17.6%ranked 196 of 318
Households in social housing (2021)12.3%13.3%14.3%ranked 236 of 318
Average house price (2026)£325,154£307,411£272,474ranked 127 of 360
House price change over 12 months (2026)−0.1%1.1%2.2%ranked 264 of 360

Energy

IndicatorDorsetSouth WestUKPositionRank
Households without central heating (2021)1.4%1.7%1.2%ranked 117 of 318
Households heated by mains gas only (2021)67.1%67.1%76.7%ranked 253 of 318
Households heated by electricity only (2021)8.4%10.3%7.8%ranked 128 of 318
Households heated by oil only (2021)8.7%7.0%0.9%ranked 59 of 318

Economy

IndicatorDorsetSouth WestUKPositionRank
Business sites (local units) (2026)20,570 sites278,7653,232,440ranked 21 of 361
Business sites per 1,000 residents (2026)52.6 per 1,00047.2 per 1,00044.4 per 1,000ranked 85 of 361
Registered businesses (enterprises) (2026)18,000 businesses237,9352,786,975ranked 22 of 361
Median annual pay, full-time residents (gross) (2025)£37,462£37,598£38,490ranked 209 of 348

Jobs

IndicatorDorsetSouth WestUKPositionRank
Employment rate, aged 16-64 (2025-2026)80.1%79.1%76.3%ranked 75 of 347
Out-of-work benefit claimants, share of residents aged 16-64 (2026)2.3%2.7%3.2%ranked 288 of 361

Transport

IndicatorDorsetSouth WestUKPositionRank
Households without a car or van (2021)13.7%16.8%18.5%ranked 242 of 318

Key points

Among the 27 local authorities in South West, Dorset ranks 6 by population.

Share of residents aged 65 and over: 31.2% in Dorset, compared with an average of 23.2% in South West and 19.4% across the UK.

Largest business sector: Wholesale and retail trade, with 15.3% of the area's business sites.

Did you know?

Business sectors: Dorset

Share of each sector in total business sites; “×1.5” means the sector is 1.5 times more common than across the UK.

Where is Dorset?

Frequently asked questions

What is the population of Dorset?

Dorset has 391,036 residents (2025), ranking 22 of 361 local authorities.

How big is Dorset?

Dorset covers 2,490.9 km², with a density of 157 people per km².

Is the population of Dorset growing?

Between 2015 and 2025, the population of Dorset went from 370,728 to 391,036, a change of +5.5%.

Where is Dorset?

Dorset is in South West (region). Latitude 50.800, longitude −2.300.

Share of residents aged 65 and over: what is the figure for Dorset?

In Dorset, “Share of residents aged 65 and over” stands at 31.2% (2025), ranking 5 of 361 local authorities; the UK median is 20.4%.

Dwellings (Council Tax stock): what is the figure for Dorset?

In Dorset, “Dwellings (Council Tax stock)” stands at 188,910 dwellings (2026), ranking 17 of 318 local authorities; the UK median is 67,955 dwellings.

Which local authorities border Dorset?

The nearest to Dorset are Bournemouth, Christchurch and Poole (31 km), New Forest (48 km), Somerset (54 km), Wiltshire (58 km), Bath and North East Somerset (66 km).