Municipality Duplek, which is part of the Podravska statistical region, measures 40 km2; this ranks it 148th among Slovene municipalities.
Statistical data for 2010 reveal the following:
In the middle of 2010 about 6,650 people (about 3,300 men and 3,350 women) were living in the municipality, which ranks Duplek 79th among Slovene municipalities. The population density was 166 people per square kilometre, which was higher 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 8.3 (in Slovenia 1.8). 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 1.2. The sum of natural increase and net migration per 1,000 population in the municipality was positive. It was 9.5 (in Slovenia 1.6).
The mean age of people in Duplek was 40.5 years, which was lower than the national average (41.6).
In contrast to most Slovene municipalities, in Duplek 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 117. It also shows that the mean age of people in Duplek 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 Duplek – as in most Slovene municipalities – more women were 65+ years old than 14 or less; for men the situation was exactly the opposite.
Duplek had 3 kindergartens. They were attended by 206 children or 76% of all children aged 1–5, which was more than the national average of 74%. In the school year 2010/2011 elementary schools in Duplek were attended by about 470 pupils, while various upper secondary schools were attended by about 260 pupils. There were 48 students and 9 graduates per 1,000 people in the municipality; in Slovenia the averages were 52 per 1,000 and 10 per 1,000, respectively.
Among people aged 15–64 (i.e. working age population) about 59% were persons in employment (i.e. persons in paid employment or self-employed persons), which is the same as the national average.
The registered unemployment rate was 12.5%, which is more than the national average (10.7%). As in most Slovene municipalities, more women than men were unemployed.
In Duplek, 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 18th person in the municipality was receiving at least one financial social assistance. In Slovenia as a whole every 22nd person received at least one financial social assistance.
The value of gross investment in new fixed assets in the municipality (EUR 376 per capita) was lower than the national average (EUR 2,176 per capita).
In 2010, there were 389 dwellings per 1,000 population. About 59% of dwellings had at least three rooms. Average size of dwellings in the municipality was 85 m2.
About every other person in Duplek had a car (55 passenger cars per 100 population); cars in this municipality were on average 9 years old.
In 2010, 246 kg of municipal waste per person was collected in Duplek, which is 143 kg less than on average in Slovenia.