Scotland a territorial parish structure, with every community in Scotland having a local congregation. Scotland also has a significant Roman Catholic population, 19% professing that faith, particularly in Greater Glasgow and the north-west. After the Reformation, Roman Catholicism in Scotland continued in the Highlands and some western islands like Uist and Barra, and it was strengthened during the 19th century by immigration from Ireland. Other Christian denominations in Scotland include the Free Church of Scotland, and various other Presbyterian offshoots. Scotland's third largest church is the Scottish Episcopal Church. Islam is the largest non-Christian religion (estimated at around 75,000, which is
2005 United Kingdom general election in Scotland found in the rest of the UK, so that they had similar electorates. Several years after the Scottish Parliament had been established by the Scotland Act 1998, the target electorate (population) size of Westminster Parliamentary seats in Scotland was adjusted to bring it in line with England's constituencies. Before this reform, Scotland had a smaller target electoral size per constituency resulting in more seats per head of population, which had been intended to compensate Scotland for its status as a nation, its lower population density (which causes larger constituencies geographically), its distance from the Parliament in Westminster and finally, because