England (1901): 30,090,689 Scotland (1901): 4,412,374 Wales (1901): 2,012,488 Northern Ireland (1901): 1,236,952 Ireland (1901): 3,221,823 Total UK (Great Britain and Ireland) (1901): 40,974,326 Although the year is 1901 not 1900 this was the best I could get from my known sources. Each country within UK is provided (included Ireland as it was a intergrated part of the UK at the time) so that you may group them as you please. Source: http://www.statoids.com/
Indian Population in 1901 is approximately 238,396,327
The population of Bank of Ireland is 15,868.
The population of Church of Ireland is 365,000.
Intel Ireland's population is 4,500.
The population of Tesco Ireland is 13,500.
The population of Tesco Ireland is 2,008.
The Republic of Ireland has a population of about 4,470,700 residents.Northern Ireland has a population of about 1,775,000 residents._______________Update (2013/14): About 6.45 million in the whole island (4.6m in the Republic and 1.85m in Northern Ireland).The Republic of Ireland has a population of about 4,470,700 residents.Northern Ireland has a population of about 1,775,000 residents.
County Leitrim has the smallest population in Ireland.
Queen Victoria.
Northern Ireland Electricity's population is 2,006.
The population of Aviva Group Ireland is 110.