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Influenza, which had become prevalent in the latter part of
1936, continued into the early weeks of the year, but the type
generally was mild and few deaths were recorded. The incidence
of scarlet fever was relatively low, as was also that of diphtheria.
Population.
The mid-year estimate of population is 174,800. This increase
of 14,500 over the figure of 160,300 for mid-year 1936 is partly due
to the natural increase of population (i.e. the excess of births over
deaths, this figure being 1,633 in 1936 and 1,750 in 1937) and
partly due to the occupation of the new houses erected (4,173 in
1936 and 4,222 in 1937).
Analysis of the valuation list at December 31st showed that
there were 48,247 houses, 3,493 semi-contained flats and 941 flats
over shops in this district. Of this number it was estimated that
about 3,500 were empty. Applying the figure of the average
number of persons per house as was recorded in previous years to
the estimated number of houses occupied at mid-year gives a
population at this date of 175,000. A figure of 177,000 is obtained
when the ratio of local government electors, namely 96,936 in 1937
and 87,754 in 1936, is applied to the estimated mid-year population
of 1936 of 160,300. On the other hand the ratio of the number
of estimated mid-year population to the number of electors has
steadily declined from a figure of 1.92 in 1934 to 1.87 in 1935 and
1.82 in 1936. If a similar fall can be assumed to have occurred,
on this basis the mid-year figure of population is 171,500.
The greatest development continues to be found in Pinner
South and Stanmore South Wards ; and the least in Harrow-on-theHill
and Greenhill, Headstone and Wealdstone South Wards.