short answer is all over the world.
below you can find a list of countries with other information Islam by country
http://en.wikipedia.org/wiki/Islam_by_country
EDIT (BY DIFFERENT USER):
Muslims are most populated in Indonesia, now adays. It has more Muslims then any other place in the world. Sure, there are still many Muslims who live in Michigan or other states/countries like in the Middle East but indeed, Indonesia is where they are populated the most.
As of 2009, there are an estimated 24,000 Muslims living in Finland.
7.6 million Muslims (22.7% of the population) live in Kerala.
They live there today because they great natural resource!
yes the caddos do live today but mostly they live in Oklahoma
about OVER 9000 live in the us today in south and north dakota
In Indonesia (over 200 million Muslims live there).
The highest estimate for the total number of Muslims living in the world today is around 2 billion.
The largest Muslim populations are in Indonesia and Pakistan, both non-Arab countries. Although there are Muslims in every country in the world today, the largest Muslim populations are in Indonesia, Pakistan, and the Arab countries.
No the Muslims live by the quran.
Muslims are everywhere today
About 2.5 millions Muslims (about 0.8 % of US total population); as of October 2009 per Pew Forum study. See link below.
As of 2009, an estimated 1,647,000 Muslims live in the UK.
Most Muslims of the Arab world live in Egypt.
7.6 million Muslims (22.7% of the population) live in Kerala.
how many approximatly Muslims live on the city Liverpool
Muslims live all over the world just as people of all other religions do
no