1911 Census of Scotland, Population, Ages and Conjugal Condition, Occupations, Birthplaces, Housing, Gaelic-speaking, Table 1 : " Number and Percentage of Gaelic Speakers in Scotland at each Census, 1881-1911".

CENSUS. Total
Population.
Speakers
of Gaelic.
Speakers
of Gaelic
and
English.
Speakers
of Gaelic
but not
English.
Percentage of Total Population.
Speaking
Gaelic.
Speaking
Gaelic and
English.
Speaking
Gaelic but
not
English.
1881 3,735,573 231,594 6.2
1891 4,025,647 254,415 210,677 43,738 6.3 5.2 1.1
1901 4,472,103 230,806 202,700 28,106 5.2 4.6 0.6
1911 4,760,904 202,398 183,998 18,400 4.3 3.9 0.4