Municipality Črnomelj, which is part of the Jugovzhodna Slovenia statistical region, measures 340 km2; this ranks it 5th among Slovene municipalities.
Statistical data for 2008 reveal the following:
At the end of 2008 about 14,700 people (about 7,400 men and 7,300 women) were living in the municipality, which ranks Črnomelj 35th among Slovene municipalities. The population density was 43 people per square kilometre, which was lower than the national average of 100 people per square kilometre.
The number of live births was higher than the number of deaths, which means that natural increase per 1,000 population in the municipality was positive. It was 0.8 (in Slovenia 1.7). 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 0.4. The sum of natural increase and net migration per 1,000 population in the municipality was positive. It was 1.2 (in Slovenia 10.9).
The mean age of people in Črnomelj was 41.4 years, which was higher than the national average (41.3 years).
As in most Slovene municipalities, in Črnomelj the number of old people was higher than the number of young people: there were 118 people, aged 65 or more, per 100 people aged 0–14. This ratio shows that the value of the ageing index was the same as the national average. It also shows that the mean age of people in Črnomelj is growing as fast as 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 Črnomelj – as in most Slovene municipalities – more women were 65+ years old than 14 or less; for men the situation was exactly the opposite.
Črnomelj had 6 kindergartens. They were attended by 423 children. Of all children aged 1–5, 63% were included in kindergartens, which was less than the national average of 70%. In the school year 2008/09 elementary schools in Črnomelj were attended by about 1,200 pupils. About 630 pupils from the municipality attended various secondary schools. There were 60 students and 7 graduates per 1,000 people in the municipality; in Slovenia the averages were 55 per 1,000 and 8 per 1,000, respectively.
Among people aged 15–64 (i.e. working age population) about 64% were persons in employment (i.e. persons in paid employment or self-employed persons), which is more than the national average of 62%.
The registered unemployment rate was 8.3%, which is more than the national average (6.7%). As in most Slovene municipalities, more women than men were unemployed.
In Črnomelj, 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 14% lower.
Every 36th person in the municipality was receiving at least one financial social assistance. In Slovenia as a whole every 28th person received at least one financial social assistance.
The value of gross investment in new fixed assets in the municipality (EUR 1,162 per capita) was lower than the national average (EUR 3,165 EUR per capita).
In 2008, there were 383 dwellings per 1,000 population. About 53% of dwellings had at least three rooms. Average size of dwellings in the municipality was 79 m2.
Every other person in Črnomelj had a car (47 passenger cars per 100 population); cars in this municipality were on average 9 years old.
In 2008, 308 kg of municipal waste per person was collected in Črnomelj, which is 111 kg less than on average in Slovenia.