City time series

New Delhi's urban expansion: 1975–2025, built-up area 1.9×

At a glance

  • New Delhi's built-up area grew from about 276 km² in 1975 to 529 km² in 2025 — 1.9× the 1975 footprint, or +1.3% per year compounded.
  • Over the same window the urban centre's population 4.6×, reaching about 31.4M by 2025.
  • The current footprint of 529 km² is equivalent to about 155 Central Parks.

Key growth numbers

  • Built-up area 1.9× +1.3% per year since 1975
  • Population 4.6× about 31.4M in 2025
  • GHSL epochs 11 five-year steps, no interpolation

New Delhi: population and built-up area, epoch by epoch

0 12.5M 25M 37.5M 50M 02505007501k 19751980198519901995200020052010201520202025
New Delhi per GHSL epoch, 1975–2025. Left axis: population; right axis: built-up km². Population Built-up km²

New Delhi

City outline: the GHSL urban-centre boundary, simplified for display — illustrative, not a navigable boundary.

Data table

Population and built-up area per GHSL epoch
Epoch Population Built-up km²
1975 6.8M 276 km²
1980 8.1M 292 km²
1985 10M 311 km²
1990 12.3M 332 km²
1995 15.2M 369 km²
2000 18.6M 413 km²
2005 21.2M 436 km²
2010 23.8M 464 km²
2015 26.5M 494 km²
2020 29.4M 520 km²
2025 31.4M 529 km²

Method & data

All numbers come from the GHS Urban Centre Database (GHSL): the European Commission's Joint Research Centre publishes, for every urban centre on Earth, the total built-up area and resident population on five-year epochs from 1975 to 2025.

An epoch is a full mapping pass, not an estimate for that calendar year; a metric the source does not report for an epoch is shown as missing — values are never interpolated or extrapolated between epochs.

The numbers stay inside the GHSL Urban Centre boundary — a stable, data-derived footprint of the contiguous built-up core, not an administrative city limit; figures are therefore not comparable to city-proper census counts.

A night-lights curve (VIIRS) is planned as a second series and is not part of this page yet; the epoch table above is the complete published dataset for this city.

Frequently asked questions

How much has New Delhi grown between 1975 and 2025?

New Delhi's built-up area expanded 1.9× — from roughly 276 km² to 529 km² inside the GHSL urban-centre boundary.

How many people live in New Delhi as of 2025?

The GHSL epoch for 2025 reports about 31.4M people inside New Delhi's urban centre.

Where do these numbers come from?

From the GHS Urban Centre Database (GHSL), published free and openly by the European Commission — see the method section above for the epoch semantics.

India country profile: key metrics vs world median →

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Data & method

GHS Urban Centre Database R2024A, European Commission Joint Research Centre (CC BY 4.0); built-up area and population per five-year epoch, consumed unmodified from the tabular release.

City outline: the GHSL urban-centre boundary, simplified for display — illustrative, not a navigable boundary.