Golders Green ward had the highest Covid-19 infection rate in Barnet, according to the latest statistics published by the council.
Its rate of 71.4 cases per 100,000 people was two and a half times more than the borough average of 28.6 per 100,000 for the week ending September 26.
Golders Green had the largest Jewish population in any ward in the country according to the 2011 Census - although there is nothing to link the high number of positive tests specifically to the Jewish community.
Council officials are due to study the latest batch of statistics before deciding whether any action needs to be taken to increase local awareness.