Prior to the conflict in former Yugoslavia, what was the percent of Muslims in Kosovo and what was the percent of Serbs in Kosovo? Article here the other day stated Kosovo was only 10% Serbian, nowadays.
The following table illustrating Kosovo's demography through the years is culled from Appendix A of "Kosovo: how myths and truths started a war", by Julie Mertus.
1838 data "Muslim" carried as Albanian.
1905 data "Albanized Muslim Serb" carried as Albanian.
Other minorities omitted for simplicity's sake.
| YEAR | Serb | Muslim |
| 1838 | 42% | 58% |
| 1905 | 33% | 66% |
| 1921 | 21% | 66% |
| 1931 | 27% | 60% |
| 1939 | 33% | 54% |
| 1948 | 24% | 68% |
| 1953 | 24% | 65% |
| 1961 | 24% | 67% |
| 1971 | 18% | 74% |
| 1981 | 13% | 77% |
| 1991 | 10% | 82% |
As to present conditions, it remains unknown, as the 2011 census in Kosovo was boycotted by the Serbs in the North, but 10% is probably ball park correct, if a little on the high side.