Claim: The council area of Na h-Eileanan Siar, an island chain off the west coast of mainland Scotland, has 15,811 Gaelic speakers, making up 59.7 percent of the population.
Evidence: With 59.3% of Gaelic speakers or a total of 15,723 speakers, this made the Outer Hebrides the most strongly coherent Gaelic speaking area in Scotland. 
According to the 2001 census Scottish Gaelic has 58,652 speakers (roughly 1% of the population of Scotland). 15,723 of these reside in the Outer Hebrides, where the language is spoken by the majority of the population. With 59.3% of Gaelic speakers or a total of 15,723 speakers, this made the Outer Hebrides the most strongly coherent Gaelic speaking area in Scotland.