Municipality Novo mesto, which is part of the Jugovzhodna Slovenia statistical region, measures 236 km2; this ranks it 20th among Slovene municipalities.
Statistical data for 2008 reveal the following:
At the end of 2008 about 35,600 people (about 17,700 men and 17,900 women) were living in the municipality, which ranks Novo mesto 6th among Slovene municipalities. The population density was 151 people per square kilometre, which was higher 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 3.4 (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 8.4. The sum of natural increase and net migration per 1,000 population in the municipality was positive. It was 11.8 (in Slovenia 10.9).
The mean age of people in Novo mesto was 39.9 years, which was lower than the national average (41.3 years).
In contrast to most Slovene municipalities, in Novo mesto the number of old people was the same as the number of young people: there were 100 people, aged 65 or more, per 100 people aged 0–14. This ratio shows that the value of the ageing index was lower than the national average of 118. It also shows that the mean age of people in Novo mesto is growing more slowly 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 Novo mesto – as in most Slovene municipalities – more women were 65+ years old than 14 or less; for men the situation was exactly the opposite.
Novo mesto had 18 kindergartens. They were attended by 1,399 children. Of all children aged 1–5, 71% were included in kindergartens, which was more than the national average of 70%. In the school year 2008/09 elementary schools in Novo mesto were attended by about 3,200 pupils. About 1,800 pupils from the municipality attended various secondary schools. There were 70 students and 10 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 65% 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 5.3%, which is less than the national average (6.7%). As in most Slovene municipalities, more women than men were unemployed.
In Novo mesto, average monthly gross earnings per person employed by legal persons were about 11% higher than the annual average of monthly earnings for Slovenia; and net earnings about 10% higher.
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 6,278 per capita) was higher than the national average (EUR 3,165 EUR per capita).
In 2008, there were 403 dwellings per 1,000 population. About 50% of dwellings had at least three rooms. Average size of dwellings in the municipality was 76 m2.
About every other person in Novo mesto had a car (58 passenger cars per 100 population); cars in this municipality were on average 7 years old.
In 2008, 438 kg of municipal waste per person was collected in Novo mesto, which is 19 kg more than on average in Slovenia.