City Centre, Sheffield
Expedia
--------------------------------- 2021 ------ 2011 ------ 2001 ------ Growth -------- Area -------- Density
City Centre --------------------- 21,477 ----- 19,868 ------ 5,534 --------- (-) -------- 8.1% -- 259.0% ---- (-) -------- 3.6 km² -- 5,916 inh./km²
Sheffield ----------------------- 556,521 ---- 551,756 ---- 513,100 ---- 520,100 ----- 0.9% ---- 7.5% --- -1.3% ----- 368 km² ---- 1,513 inh./km²
Sheffield Urban Area ---------- 822,328 ---- 809,472 ---- 761,400 ---- 773,800 ----- 1.6% ---- 6.3% --- -1.6% ----- 654 km²
Sheffield Metro Area -------- 1,660,849 -- 1,622,722 -- 1,534,100 -- 1,557,200 ----- 2.3% ---- 5.8% --- -1.5% --- 2,054 km²
As they released more details of their census, we can see British cities, that also experienced urban decline in the 1970's are now seen their city centres booming. Things could be even worse as Covid really hit British urban areas hard.
Sheffield, the most typical rust belt city, centre of British steel industry, not only resumed its growth (immigration, take notice US) and saw its centre population to growth four fold. From 5,000 to 21,000 in mere 20 years.