Municipality Šmartno pri Litiji, which is part of the Osrednjeslovenska statistical region, measures 95 km2; this ranks it 76th among Slovene municipalities.
Statistical data for 2012 reveal the following:
In the middle of 2012 about 5,550 people (about 2,800 men and 2,700 women) were living in the municipality, which ranks Šmartno pri Litiji 94th among Slovene municipalities. The population density was 58 people per square kilometre, which was lower than the national average of 101 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 0.2 (in Slovenia 1.3). 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 8.8. The sum of natural increase and net migration per 1,000 population in the municipality was positive. It was 9 (in Slovenia 1.6).
The mean age of people in Šmartno pri Litiji was 40.8 years, which was lower than the national average (42).
As in most Slovene municipalities, in Šmartno pri Litiji the number of old people was higher than the number of young people: there were 104 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 Šmartno pri Litiji 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 Šmartno pri Litiji – as in most Slovene municipalities – more women were 65+ years old than 14 or less; for men the situation was exactly the opposite.
Šmartno pri Litiji had 1 kindergarten. They were attended by 217 children or 71% of all children aged 1–5, which was less than the national average of 75%. In the school year 2012/2013 basic schools in Šmartno pri Litiji were attended by about 480 pupils, while various upper secondary schools were attended by about 250 pupils. There were 50 students and 12 graduates per 1,000 people in the municipality; in Slovenia the averages were 47 per 1,000 and 10 per 1,000, respectively.
Among people aged 15–64 (i.e. working age population) about 58% were persons in employment (i.e. persons in paid employment or self-employed persons), which is more than the national average of 57%.
The registered unemployment rate was 11.4%, which is less than the national average (12%). As in most Slovene municipalities, more women than men were unemployed.
In Šmartno pri Litiji, average monthly gross earnings per person employed by legal persons were about 23% lower than the annual average of monthly earnings for Slovenia; and net earnings about 19% lower.
In 2012, there were 367 dwellings per 1,000 population. About 65% of dwellings had at least three rooms. Average size of dwellings in the municipality was 85 m2.
Every other person in Šmartno pri Litiji had a car (51 passenger cars per 100 population); cars in this municipality were on average 9 years old.
In 2012, 197 kg of municipal waste per person was collected in Šmartno pri Litiji, which is 130 kg less than on average in Slovenia.