Americans are indeed bad at Geography.
Here is a non exhaustive list of Countries where English is the Official Language
ncsu.edu/grad/handbook/official_language_english.htm
Countries where English is spoken
English is officially spoken in: Anguilla, Antigua, Bahamas, Barbados, Belau, Bermuda, Botswana, British Indian Ocean Territory, British Virgin Islands, American Samoa, Antigua, Australia, Bahamas, Bangladesh, Barbados, Belize, Bermuda, Bhutan, Botswana, British Virgin Islands, Brunei, Cameroon, Cook Islands, Dominica, Ethiopia, Falkland Islands, Fiji, Gambia, Ghana, Gibraltar, Grenada, Guam, Guyana, Hong Kong, India, Ireland, Jamaica, Jersey, Kenya, Kiribati, Lesotho, Liberia, Malawi, Malaysia, Malta, Marshall Islands, Mauritius, Micronesia, Midway Islands, Montserrat, Namibia, Nauru, Nepal, New Zealand, Nigeria, Niue, Norfolk Island, Pakistan, Palau, Papua New Guinea, Philippines, Pitcairn, Puerto Rico, Samoa, Seychelles, Sierra Leone, Solomon Islands, Somalia, Sri Lanka, St Helena, St Kitts-Nevis, St Lucia, St Vincent and the Grenadines, Swaziland, Tokelau, Tonga, Trinidad and Tobago, Tuvalu, US Virgin Islands, Uganda, United Kingdom, United States, Vanuatu, Wake Island, Western Samoa, Zambia, Zambia, Zimbabwe
Nearly one in five Americans speaks a language other than English at home, the Census Bureau says, an increase of nearly 50 percent during the past decade. Most speak Spanish, followed by Chinese, with Russian rising fast.
boston.com/news/nation/washington/articles/2003/10/09/percentage_of_non_english_speaking_americans_surges/
The purpose of bringing this up was to let the fellow members know that they could meet people speaking English as their first language anywhere in the world.
And they would not find every American speaking English as his/her first language.
I am really tired at the moment and dont feel like proofreading this post. =)