Siriu: population and statistics
Siriu has a population of 3,022 (2026) across 222.3 km², or 13.6 people per km². It ranks 1,565 of 3,181 localities by population. Its population is falling: −6.5% between 2016 and 2026.
- 3,022 residents
- 222.3 km²
- 14 people/km²
Key points
Among the 87 localities in Buzău County, Siriu ranks No. 43 by population.
Length of the sewer network per 1,000 inhabitants: 0.63 km in Siriu, compared with an average of 2.75 km in Buzău County and 3.05 km nationally.
Building permits for residential buildings per 1,000 inhabitants: 7.28 ‰ in Siriu, compared with an average of 1.70 ‰ in Buzău County and 1.87 ‰ nationally.
Siriu: the most common activity among active businesses is Retail trade (except motor vehicles) (48 businesses).
Siriu in numbers
Where is Siriu?
Population of Siriu over time
Siriu had 3,233 residents in 2016 and 3,022 in 2026.
| Year | Population (by registered residence) |
|---|---|
| 2021 | 3,154 |
| 2022 | 3,134 |
| 2023 | 3,093 |
| 2024 | 3,079 |
| 2025 | 3,056 |
| 2026 | 3,022 |
Did you know?
- “Length of the sewer network per 1,000 inhabitants”: lower than in 95% of localities.
- “Building permits for residential buildings per 1,000 inhabitants”: higher than in 94% of localities.
- “Tourist accommodation places per 1,000 inhabitants”: higher than in 93% of localities.
- Its area is roughly equal to 31,136 football pitches.
- Its population density is 6.7 times lower than the national average.
- The nearest more populous locality is Nehoiu (9,753 residents), 8.2 km away.
All indicators for Siriu
Value for the locality, then the regional average and the national median (for counts: regional and national totals). The gauge places the locality between the lowest and highest value in the country.
Population
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| People settling in the municipality per 1,000 inhabitants (2025) | 9.6 ‰ | 15.4 ‰ | 16.0 ‰ | ranked 2,847 of 3,163 | |
| People leaving the municipality per 1,000 inhabitants (2025) | 18.5 ‰ | 18.6 ‰ | 17.3 ‰ | ranked 1,246 of 3,163 | |
| Live births per 1,000 inhabitants (2025) | 7.3 ‰ | 6.2 ‰ | 6.9 ‰ | ranked 1,347 of 3,157 | |
| Deaths per 1,000 inhabitants (2025) | 10.3 ‰ | 13.3 ‰ | 13.0 ‰ | ranked 2,423 of 3,163 |
Housing
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| Length of the drinking-water network per 1,000 inhabitants (2025) | 5.92 km | 7.19 km | 7.67 km | ranked 1,793 of 2,728 | |
| Building permits for residential buildings per 1,000 inhabitants (2025) | 7.28 ‰ | 1.70 ‰ | 1.53 ‰ | ranked 143 of 2,438 | |
| Existing dwellings (2025) | 1,346 | 213,362 | 10,177,161 | ranked 1,798 of 3,181 | |
| Dwellings per 1,000 inhabitants (2025) | 445.4 ‰ | 494.1 ‰ | 484.8 ‰ | ranked 2,065 of 3,163 | |
| Average living floor area per dwelling (m²) (2025) | 52.3 m² | 51.0 m² | 50.3 m² | ranked 1,336 of 3,163 |
Economy
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| Active companies in the trade register per 1,000 inhabitants (2026) | 38.7 ‰ | 43.4 ‰ | 29.4 ‰ | ranked 917 of 3,163 | |
| Companies registered in the last 12 months per 1,000 inhabitants (2026) | 0.99 ‰ | 2.92 ‰ | 2.10 ‰ | ranked 2,563 of 3,163 |
Employment
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| Average number of employees per 1,000 inhabitants (2024) | 99 ‰ | 205 ‰ | 71 ‰ | ranked 1,037 of 3,163 | |
| Registered unemployed as a share of labour resources (working-age population) (2026) | 2.0% | 2.1% | 2.3% | ranked 1,732 of 3,163 |
Tourism
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| Tourist overnight stays per inhabitant (2025) | 3.1 nights | 0.7 | 0.4 | ranked 154 of 1,250 | |
| Tourist arrivals per 1,000 inhabitants (2025) | 2,072 ‰ | 414 ‰ | 200 ‰ | ranked 115 of 1,250 | |
| Tourist accommodation places per 1,000 inhabitants (2025) | 121.8 ‰ | 16.7 ‰ | 11.8 ‰ | ranked 94 of 1,362 |
Environment
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| Drinking water distributed per inhabitant (m³) (2025) | 18.9 m³ | 33.7 m³ | 27.2 m³ | ranked 1,859 of 2,656 | |
| Length of the sewer network per 1,000 inhabitants (2025) | 0.63 km | 2.75 km | 4.05 km | ranked 1,606 of 1,695 |
Health
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| Doctors per 1,000 inhabitants (2024) | 0.33 ‰ | 1.59 ‰ | 0.52 ‰ | ranked 2,277 of 2,833 | |
| Family doctors per 1,000 inhabitants (2024) | 0.33 ‰ | 0.47 ‰ | 0.46 ‰ | ranked 2,137 of 2,807 | |
| Pharmacists per 1,000 inhabitants (2024) | 0.66 ‰ | 0.73 ‰ | 0.47 ‰ | ranked 625 of 2,248 |
Education
| Indicator | Siriu | Buzău County | National | Position? | Rank |
|---|---|---|---|---|---|
| School population (children, pupils and students) per 1,000 inhabitants (2025) | 100 ‰ | 137 ‰ | 91 ‰ | ranked 1,272 of 3,158 | |
| Education units per 10,000 inhabitants (2025) | 3.3 per 10,000 inh. | 3.2 per 10,000 inh. | 3.6 per 10,000 inh. | ranked 1,683 of 3,122 |
Businesses by activity: Siriu
Active businesses in the business register with a recorded activity, by section and by activity (NACE Rev. 2). Only activities with at least 3 businesses are shown.
By industry section
- Wholesale and retail trade64 · 18.6%
- Transport and storage43 · 12.5%
- Accommodation and food services41 · 11.9%
- Construction35 · 10.2%
- Manufacturing31 · 9.0%
- Professional, scientific and technical27 · 7.8%
- Administrative and support services24 · 7.0%
- Agriculture, forestry and fishing20 · 5.8%
Most common activities
- Retail trade (except motor vehicles)48 · 14.0%
- Wholesale trade (except motor vehicles)44 · 12.8%
- Land transport and transport via pipelines41 · 11.9%
- Food and beverage service activities32 · 9.3%
- Specialised construction activities31 · 9.0%
- Construction of buildings26 · 7.6%
- Accommodation17 · 4.9%
- Architectural and engineering activities; technical testing17 · 4.9%
- Forestry and logging16 · 4.7%
- Warehousing and transport support activities16 · 4.7%
Frequently asked questions
What is the population of Siriu?
Siriu has 3,022 residents (2026), ranking 1,565 of 3,181 localities.
How big is Siriu?
Siriu covers 222.3 km², with a density of 14 people per km².
Is the population of Siriu growing?
Between 2016 and 2026, the population of Siriu went from 3,233 to 3,022, a change of −6.5%.
Where is Siriu?
Siriu is in Buzău County. Latitude 45.467, longitude 26.233.
Length of the sewer network per 1,000 inhabitants: what is the figure for Siriu?
In Siriu, “Length of the sewer network per 1,000 inhabitants” stands at 0.63 km (2025), ranking 1,606 of 1,695 localities; the national median is 4.05 km.
Building permits for residential buildings per 1,000 inhabitants: what is the figure for Siriu?
In Siriu, “Building permits for residential buildings per 1,000 inhabitants” stands at 7.28 ‰ (2025), ranking 143 of 2,438 localities; the national median is 1.53 ‰.
Which localities border Siriu?
The nearest to Siriu are Nehoiu (8.2 km), Chiojdu (12 km), Colți (15 km), Starchiojd (17 km), Bătrâni (18 km).