Petrinja: population and statistics
Petrinja has a population of 19,248 (2025) across 379.3 km², or 50.7 people per km². It ranks 28 of 556 municipalities by population. Its population is falling: −15.6% between 2015 and 2025.
- 19,248 residents
- 379.3 km²
- 51 people/km²
Petrinja in numbers
Key points
Among the 19 municipalities in Sisak-Moslavina County, Petrinja ranks No. 2 by population.
Population of Petrinja over time
Petrinja had 22,805 residents in 2015 and 19,248 in 2025.
| Year | Population |
|---|---|
| 2020 | 20,115 |
| 2021 | 19,855 |
| 2022 | 19,578 |
| 2023 | 19,514 |
| 2024 | 19,431 |
| 2025 | 19,248 |
Did you know?
- Number 1 in Sisak-Moslavina County for “Dwellings completed in the year”.
- Number 1 in Sisak-Moslavina County for “Dwellings completed 2020-2024 per 1,000 residents”.
- “Dwellings completed in the year”: higher than in 96% of municipalities.
- “Children in kindergartens”: higher than in 94% of municipalities.
- “Persons in paid employment in legal entities”: higher than in 92% of municipalities.
- Its area is roughly equal to 53,123 football pitches.
- Its population density is 2.2 times lower than the national average.
All indicators for Petrinja
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Average age of residents (2021) | 45.2 years | 45.9 | 44.8 | ranked 236 of 545 | |
| Share of residents aged 65 and over (2021) | 23.3% | 24.6% | 22.9% | ranked 246 of 545 | |
| Share of children aged 0 to 14 (2021) | 13.0% | 13.1% | 13.7% | ranked 350 of 545 | |
| Natural change per 1,000 residents (2024) | −9.0 ‰ | −9.4 ‰ | −6.8 ‰ | ranked 354 of 546 | |
| Net migration (arrivals minus departures) per 1,000 residents (2025) | −2.4 ‰ | −4.2 ‰ | 3.1 ‰ | ranked 366 of 546 | |
| Net migration with abroad per 1,000 residents (2025) | −3.6 ‰ | −1.9 ‰ | 3.7 ‰ | ranked 496 of 546 |
Housing
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Number of dwellings (2021) | 10,158 | 87,222 | 2,390,500 | ranked 35 of 545 | |
| Dwellings per 1,000 residents (2021) | 509 | 621 | 604 | ranked 397 of 545 | |
| Share of holiday and seasonal dwellings (2021) | 3.1% | 6.6% | 7.9% | ranked 374 of 545 | |
| Share of unoccupied dwellings for permanent residence (2021) | 29.1% | 29.2% | 25.9% | ranked 213 of 545 | |
| Average floor area of an occupied dwelling (2021) | 103.0 m² | 98.0 m² | 100.4 m² | ranked 234 of 545 | |
| Dwellings completed in the year (2024) | 140 | 265 | 16,654 | ranked 21 of 546 | |
| Dwellings completed 2020-2024 per 1,000 residents (2024) | 18.2 | 6.8 | 7.2 | ranked 131 of 546 | |
| Share of occupied dwellings connected to a sewage disposal system (2021) | 99.4% | 98.7% | 99.0% | ranked 210 of 545 |
Energy
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of occupied dwellings with a gas installation (2021) | 3.6% | 27.7% | 12.8% | ranked 420 of 545 | |
| Share of occupied dwellings with air conditioning (2021) | 31.8% | 32.1% | 31.3% | ranked 266 of 545 |
Economy
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of employed residents in agriculture, forestry and fishing (2021) | 4.3% | 5.7% | 6.0% | ranked 344 of 545 | |
| Share of employed residents in mining, manufacturing, energy and water supply (2021) | 20.7% | 23.4% | 19.5% | ranked 243 of 545 | |
| Share of employed residents in construction (2021) | 9.7% | 8.5% | 9.0% | ranked 233 of 545 | |
| Net income per resident (per year) (2025) | 8,982 € | 8,681 € | 7,821 € | ranked 137 of 546 | |
| Average annual net pay per employee (2025) | 11,774 € | 12,100 € | 11,010 € | ranked 166 of 546 | |
| Average annual net pension per pensioner (2025) | 6,250 € | 6,760 € | 6,391 € | ranked 303 of 546 | |
| Employees with pay per 1,000 residents (2025) | 504 | 460 | 456 | ranked 139 of 546 | |
| Pensioners per 1,000 residents (2025) | 389 | 378 | 302 | ranked 78 of 546 |
Employment
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Unemployment rate (2021) | 6.5% | 6.8% | 4.6% | ranked 184 of 545 | |
| Employed share of residents aged 15 and over (2021) | 44.5% | 43.4% | 45.2% | ranked 298 of 545 | |
| Persons in paid employment in legal entities (2024) | 3,988 | 31,859 | 1,262,193 | ranked 45 of 546 | |
| Persons in paid employment in legal entities per 1,000 residents (2024) | 205 | 238 | 150 | ranked 185 of 546 | |
| Share of employed residents working outside their municipality (2021) | 48.6% | 38.9% | 55.5% | ranked 345 of 545 |
Tourism
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Tourist nights in the year (2019) | 3,831 | – | 9,381 | ranked 240 of 422 | |
| Tourist nights per resident in the year (2019) | 0.2 | 0.8 | 1.6 | ranked 291 of 422 | |
| Share of employed residents in accommodation and food service activities (2021) | 5.6% | 5.2% | 6.5% | ranked 336 of 545 |
Society
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Average household size in occupied dwellings (2021) | 2.67 | 2.60 | 2.75 | ranked 317 of 545 |
Education
| Indicator | Petrinja | Sisak-Moslavina County | National | Position? | Rank |
|---|---|---|---|---|---|
| Kindergartens and preschool institutions (2025/2026) | 5 | 40 | 1,794 | ranked 51 of 546 | |
| Children in kindergartens (2025/2026) | 671 | 4,515 | 158,685 | ranked 32 of 546 | |
| Children in kindergartens per 1,000 residents (2025/2026) | 35 | 34 | 35 | ranked 265 of 546 | |
| Primary schools (2025/2026) | 8 | 79 | 1,925 | ranked 35 of 546 | |
| Primary school pupils (2025/2026) | 1,406 | 9,475 | 291,355 | ranked 31 of 546 | |
| Primary school pupils per 1,000 residents (2025/2026) | 73 | 72 | 72 | ranked 250 of 546 | |
| Pupils per teacher in primary schools (2025/2026) | 7.3 | 7.1 | 6.3 | ranked 190 of 534 | |
| Students by place of residence (2025/2026) | 662 | 4,094 | 139,372 | ranked 31 of 546 | |
| Students per 1,000 residents (by place of residence) (2025/2026) | 34 | 31 | 28 | ranked 127 of 546 | |
| Share of residents aged 15 and over with higher education (2021) | 16.5% | 15.9% | 13.0% | ranked 187 of 545 |
Petrinja: indicators over time
Indicators available for several years. Hover over or tap a chart to read the value for each year.
Natural change per 1,000 residents
−9.0 ‰ in 2024, compared with −9.7 ‰ in 2022
Net migration (arrivals minus departures) per 1,000 residents
−2.4 ‰ in 2025, compared with −10.8 ‰ in 2015
Net migration with abroad per 1,000 residents
−3.6 ‰ in 2025, compared with −10.0 ‰ in 2015
Dwellings completed in the year
140 in 2024, compared with 53 in 2011
Net income per resident (per year)
8,982 € in 2025, compared with 5,637 € in 2022
Average annual net pay per employee
11,774 € in 2025, compared with 7,793 € in 2022
Average annual net pension per pensioner
6,250 € in 2025, compared with 4,233 € in 2022
Persons in paid employment in legal entities
3,988 in 2024, compared with 3,506 in 2011
Tourist nights in the year
955 in 2021, compared with 4,197 in 2012
Where is Petrinja?
Neighbouring municipalities
- Sisak8.7 km · 38,279
- Martinska Ves17 km · 2,701
- Lekenik17 km · 5,321
- Glina19 km · 6,713
- Sunja23 km · 3,648
- Pokupsko24 km · 1,820
- Donji Kukuruzari24 km · 955
- Kravarsko25 km · 1,853
All municipalities in Sisak-Moslavina County
Municipalities of similar size
Frequently asked questions
What is the population of Petrinja?
Petrinja has 19,248 residents (2025), ranking 28 of 556 municipalities.
How big is Petrinja?
Petrinja covers 379.3 km², with a density of 51 people per km².
Is the population of Petrinja growing?
Between 2015 and 2025, the population of Petrinja went from 22,805 to 19,248, a change of −15.6%.
Where is Petrinja?
Petrinja is in Sisak-Moslavina County. Latitude 45.438, longitude 16.290.
Dwellings completed in the year: what is the figure for Petrinja?
In Petrinja, “Dwellings completed in the year” stands at 140 (2024), ranking 21 of 546 municipalities; the national median is 4.
Children in kindergartens: what is the figure for Petrinja?
In Petrinja, “Children in kindergartens” stands at 671 (2025/2026), ranking 32 of 546 municipalities; the national median is 86.
Which municipalities border Petrinja?
The nearest to Petrinja are Sisak (8.7 km), Martinska Ves (17 km), Lekenik (17 km), Glina (19 km), Sunja (23 km).