Blackburn projected minority White British by 2028. Three more Lancashire towns follow by 2045.

Blackburn. 56.9% White British. Two years from minority status.

Census 2021: Blackburn with Darwen, 56.9% White British. Down from 66.6% in 2011. Nearly 10 percentage points gone in one decade.

The Hamilton-Perry model (MAE 1.71pp, validated against Census 2021) projects:

Year	Blackburn WBI
2021	56.9%
2028	~50% (threshold)
2031	46.8%
2041	36.3%
2051	26.6%

Blackburn is not alone in Lancashire.

Pendle. 66.1% White British (2021). Projected below 50% by approximately 2034. Nelson and Colne are the concentration points. WBI projected 29.3% by 2051.

Preston. 66.1% White British (2021). Projected below 50% by approximately 2036. University city. International migration pipeline. 554 on asylum support. WBI projected 33.5% by 2051.

Burnley. 77.9% White British (2021). Projected below 50% by approximately 2045. Currently 461 on asylum support. The Daneshouse and Stoneyholme ward is already majority South Asian.

Four Lancashire mill towns. Same industry. Same deprivation. Same trajectory. Different timelines.

Blackburn gets there first because it started from a lower base (56.9% vs Burnley’s 77.9%) and has a larger established South Asian community driving higher cohort change ratios. The dynamics are identical. Only the speed differs.

Source: Census 2021 custom dataset. Hamilton-Perry v7.0, Census 2011 DC2101EW base, SNPP-constrained. Threshold years interpolated from decadal projections. Backcast MAE 1.71pp across 269 areas.