Birmingham: 43% White British today, projected under 11% by 2051

53% White British in 2011. 43% in 2021. The trajectory does not stop.

Census 2021. Birmingham. 42.9% White British. Down from 53.1% ten years earlier. The fastest decline of any English city over 500,000 people. Ten percentage points. One decade.

The numbers going forward:

Year	White British
2011	53.1%
2021	42.9%
2031	31.7%
2041	20.1%
2051	10.7%
2061	4.7%

Four things drive this.

Fertility. White British TFR nationally: 1.31 children per woman (ONS 2024 births data). Pakistani TFR: 2.52. Birmingham’s Pakistani population is 17%. That fertility gap compounds every year. Every cohort is less White British than the last.

Age structure. Birmingham’s White British population skews older. The younger cohorts are already majority non-White-British. In primary schools, White British pupils are a minority today. The demographic wave is already in the system.

White flight. White British residents leave Birmingham for Solihull, Worcestershire, Warwickshire at higher rates than other ethnic groups. Census 2021 migration data confirms this pattern. It is not new. It is accelerating.

International settlement. Birmingham is a major settlement city. 2.3% of the population arrived from outside the UK in the year before Census 2021. South Asian and African countries dominate.

The models agree on direction. Our Hamilton-Perry model (MAE 1.71pp, validated against Census 2021) projects 10.7% WBI by 2051. Our cohort-component model (which assumes some fertility convergence) projects approximately 28-30% WBI. The true outcome sits somewhere between. Both models agree: Birmingham passed majority non-White-British years ago. The question is how fast it continues.

Religion. Birmingham’s Muslim population: 31.8% in 2021 (Census). Christian: 29.9%. Muslim already exceeds Christian. Hamilton-Perry religion projections suggest Muslim majority in the early 2040s. First major English city.

Birmingham is not the exception. It is the preview. Leicester, Luton, Slough: similar trajectories. Blackburn: projected minority White British by the late 2020s. The dynamics are national. Birmingham just gets there first.

Source: Census 2021 custom dataset (direct observations, 20 ethnic groups). Hamilton-Perry v7.0 single-year CCR model, SNPP-constrained. Census 2011 DC2101EW (observed, not proportionally split). Backcast validated: MAE 1.71pp across 269 areas.