Central London Population: ~1.56 Million (Mid-2020)

According to the **Office for National Statistics (ONS) Mid-Year Estimates (Mid-2020)**, the resident population of **Inner London** (the statistical definition of "Central London") was:

1,562,800

What "Inner London" Covers

• **12 Boroughs + City of London:** Camden, City of London, Hackney, Hammersmith & Fulham, Islington, Kensington & Chelsea, Lambeth, Lewisham, Southwark, Tower Hamlets, Wandsworth, Westminster.
• Area: 319 km² (123 sq mi).
• Density: ~4,900/km² (12,700/sq mi) — **highest in UK**.

Greater London Context

• Greater London (33 boroughs): ~8,982,000 (Mid-2020).
• Inner London = **~17.4% of Greater London population** on **~19.5% of its area**.
• Outer London: ~7.42M (82.6%).

Daytime vs. Nighttime

• Daytime (workday): **~3–4 million** (commuters, tourists, students). City of London alone: ~500k workers vs. ~8k residents.
• Night/Weekend: Drops to resident base.

Trends

• 2011 Census: 1,424,000 → +9.7% (2011–2020).
• 2021 Census: 1,550,000 (slightly lower than MYE).
• Post-COVID: Some outflow (remote work, cost), but 2023 MYE shows stabilization ~1.57M.

Key Boroughs (2020 Pop.)

Inner London: **small area, massive density, huge daytime swell, global capital core.**