Municipality Prevalje, which is part of the Koroška statistical region, measures 58 km2; this ranks it 121st among Slovene municipalities.
Statistical data for 2011 reveal the following:
In the middle of 2011 about 6,850 people (about 3,400 men and 3,450 women) were living in the municipality, which ranks Prevalje 76th among Slovene municipalities. The population density was 118 people per square kilometre, which was higher than the national average of 101 people per square kilometre.
The number of live births was lower than the number of deaths, which means that natural increase per 1,000 population in the municipality was negative. It was -9.2 (in Slovenia 1.6). The number of people who moved from the municipality was lower than the number of people who moved into the municipality, so net migration per 1,000 population in the municipality was positive. It was 6.7. The sum of natural increase and net migration per 1,000 population in the municipality was negative. It was -2.5 (in Slovenia 2.6).
The mean age of people in Prevalje was 43.3 years, which was higher than the national average (41.8).
As in most Slovene municipalities, in Prevalje the number of old people was higher than the number of young people: there were 142 people, aged 65 or more, per 100 people aged 0–14. This ratio shows that the value of the ageing index was higher than the national average of 117. It also shows that the mean age of people in Prevalje is growing more rapidly than in Slovenia as a whole. Data by sex show that the ageing index for women was in all Slovene municipalities higher than the ageing index for men. In Prevalje – as in most Slovene municipalities – more women were 65+ years old than 14 or less; for men the situation was the same.
Prevalje had 4 kindergartens. They were attended by 232 children or 69% of all children aged 1–5, which was less than the national average of 76%. In the school year 2011/2012 basic schools in Prevalje were attended by about 550 pupils, while various upper secondary schools were attended by about 300 pupils. There were 50 students and 10 graduates per 1,000 people in the municipality; in Slovenia the averages were 51 per 1,000 and 10 per 1,000, respectively.
Among people aged 15–64 (i.e. working age population) about 56% were persons in employment (i.e. persons in paid employment or self-employed persons), which is less than the national average of 58%.
The registered unemployment rate was 11.7%, which is less than the national average (11.8%). As in most Slovene municipalities, more women than men were unemployed.
In Prevalje, average monthly gross earnings per person employed by legal persons were about 17% lower than the annual average of monthly earnings for Slovenia; and net earnings about 15% lower.
Every 20th person in the municipality was receiving at least one financial social assistance. In Slovenia as a whole every 24th person received at least one financial social assistance.
In 2011, there were 364 dwellings per 1,000 population. About 60% of dwellings had at least three rooms. Average size of dwellings in the municipality was 88 m2.
Every other person in Prevalje had a car (48 passenger cars per 100 population); cars in this municipality were on average 9 years old.
In 2011, 271 kg of municipal waste per person was collected in Prevalje, which is 81 kg less than on average in Slovenia.