Local authority · London

Merton: population and statistics

Merton has a population of 218,891 (2025) across 37.6 km², or 5,818 people per km². It ranks 102 of 361 local authorities by population. Its population is growing: +2.4% between 2015 and 2025.

  • 218,891 residents
  • 37.6 km²
  • 5,818 people/km²
Location map: Merton

Merton in numbers

Population
218,891
ranked 102 of 361 +2.4%
Population density
5,818people/km²
ranked 19 of 361
Area
37.6km²
ranked 331 of 361
Dwellings built before 1940
63.2%%
ranked 6 of 318
Households heated by oil only
0.1%%
ranked 246 of 318
Median annual pay, full-time residents (gross)
£50,844GBP
ranked 12 of 348
Share of residents aged 65 and over
13.6%%
ranked 327 of 361

Population of Merton over time

212,857215,556218,255220,9542015 : 213,7912016 : 215,5142017 : 215,4312018 : 216,1712019 : 217,2192020 : 217,1012021 : 215,4262022 : 216,0282023 : 218,6972024 : 220,0202025 : 218,891201520172019202120232025

Merton had 213,791 residents in 2015 and 218,891 in 2025.

YearPopulation
2020217,101
2021215,426
2022216,028
2023218,697
2024220,020
2025218,891

All indicators for Merton

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

IndicatorMertonLondonUKPositionRank
Share of residents aged 65 and over (2025)13.6%12.6%20.4%ranked 327 of 361
Share of residents aged under 16 (2025)18.2%17.8%17.4%ranked 135 of 361

Housing

IndicatorMertonLondonUKPositionRank
Dwellings (Council Tax stock) (2026)87,910 dwellings3,863,73027,429,300ranked 103 of 318
Dwellings built before 1940 (2026)63.2%50.9%31.6%ranked 6 of 318
Dwellings built since 2000 (2026)12.1%18.5%18.1%ranked 280 of 318
Households (Census 2021) (2021)81,726 households111,53861,440ranked 102 of 318
Households living in a house or bungalow (2021)60.4%47.1%84.7%ranked 294 of 318
Households living in a flat or maisonette (2021)39.6%52.8%14.8%ranked 25 of 318
Owner-occupied households (incl. shared ownership) (2021)56.7%47.2%67.3%ranked 269 of 318
Households renting privately (2021)29.1%29.9%17.6%ranked 30 of 318
Households in social housing (2021)14.2%22.7%14.3%ranked 165 of 318
Average house price (2026)£615,890£555,175£272,474ranked 12 of 360
House price change over 12 months (2026)−0.9%−2.8%2.2%ranked 290 of 360

Energy

IndicatorMertonLondonUKPositionRank
Households without central heating (2021)2.0%2.2%1.2%ranked 51 of 318
Households heated by mains gas only (2021)77.6%70.7%76.7%ranked 139 of 318
Households heated by electricity only (2021)9.8%12.6%7.8%ranked 86 of 318
Households heated by oil only (2021)0.1%0.1%0.9%ranked 246 of 318

Economy

IndicatorMertonLondonUKPositionRank
Business sites (local units) (2026)12,445 sites611,3453,232,440ranked 65 of 361
Business sites per 1,000 residents (2026)56.9 per 1,00067.0 per 1,00044.4 per 1,000ranked 52 of 361
Registered businesses (enterprises) (2026)11,275 businesses552,5052,786,975ranked 61 of 361
Median annual pay, full-time residents (gross) (2025)£50,844£46,514£38,490ranked 12 of 348

Jobs

IndicatorMertonLondonUKPositionRank
Employment rate, aged 16-64 (2025-2026)75.9%74.7%76.3%ranked 182 of 347
Out-of-work benefit claimants, share of residents aged 16-64 (2026)4.5%5.5%3.2%ranked 64 of 361

Transport

IndicatorMertonLondonUKPositionRank
Households without a car or van (2021)33.0%41.3%18.5%ranked 32 of 318

Key points

Among the 33 local authorities in London, Merton ranks 25 by population.

Dwellings built before 1940: 63.2% in Merton, compared with an average of 50.9% in London and 34.9% across the UK.

Households heated by oil only: 0.1% in Merton, compared with an average of 0.1% in London and 3.4% across the UK.

Largest business sector: Professional, scientific and technical, with 17.7% of the area's business sites.

Did you know?

Business sectors: Merton

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 Merton?

Frequently asked questions

What is the population of Merton?

Merton has 218,891 residents (2025), ranking 102 of 361 local authorities.

How big is Merton?

Merton covers 37.6 km², with a density of 5,818 people per km².

Is the population of Merton growing?

Between 2015 and 2025, the population of Merton went from 213,791 to 218,891, a change of +2.4%.

Where is Merton?

Merton is in London (region). Latitude 51.401, longitude −0.196.

Dwellings built before 1940: what is the figure for Merton?

In Merton, “Dwellings built before 1940” stands at 63.2% (2026), ranking 6 of 318 local authorities; the UK median is 31.6%.

Households heated by oil only: what is the figure for Merton?

In Merton, “Households heated by oil only” stands at 0.1% (2021), ranking 246 of 318 local authorities; the UK median is 0.9%.

Which local authorities border Merton?

The nearest to Merton are Sutton (4.4 km), Wandsworth (6.2 km), Croydon (7.5 km), Kingston upon Thames (7.6 km), Lambeth (8.6 km).