Ostrov (Tulcea County): population and statistics
Ostrov has a population of 1,822 (2026) across 53.6 km², or 34.0 people per km². It ranks 2,492 of 3,181 localities by population. Its population is falling: −13.3% between 2016 and 2026.
- 1,822 residents
- 53.6 km²
- 34 people/km²
Key points
Among the 51 localities in Tulcea County, Ostrov ranks No. 31 by population.
People settling in the municipality per 1,000 inhabitants: 30.2 ‰ in Ostrov, compared with an average of 14.9 ‰ in Tulcea County and 18.5 ‰ nationally.
Drinking water distributed per inhabitant (m³): 65.9 m³ in Ostrov, compared with an average of 52.8 m³ in Tulcea County and 39.9 m³ nationally.
Ostrov: the most common activity among active businesses is Retail trade (except motor vehicles) (15 businesses).
Ostrov in numbers
Where is Ostrov?
Neighbouring localities
- Frecăței7.1 km · 1,258
- Peceneaga9.1 km · 1,562
- Dorobanțu10 km · 1,230
- Dăeni11 km · 1,803
- Topolog16 km · 4,223
- Mărașu18 km · 2,345
- Gârliciu19 km · 1,459
- Cerna21 km · 3,321
All localities in Tulcea County
Localities of similar size
Population of Ostrov over time
Ostrov had 2,101 residents in 2016 and 1,822 in 2026.
| Year | Population (by registered residence) |
|---|---|
| 2021 | 1,929 |
| 2022 | 1,894 |
| 2023 | 1,855 |
| 2024 | 1,838 |
| 2025 | 1,814 |
| 2026 | 1,822 |
Did you know?
- “People settling in the municipality per 1,000 inhabitants”: higher than in 93% of localities.
- “Drinking water distributed per inhabitant (m³)”: higher than in 92% of localities.
- Its area is roughly equal to 7,504 football pitches.
- Its population density is 2.7 times lower than the national average.
- The nearest locality is Frecăței, 7.1 km away.
- The nearest more populous locality is Topolog (4,223 residents), 16 km away.
All indicators for Ostrov
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 | Ostrov | Tulcea County | National | Position? | Rank |
|---|---|---|---|---|---|
| People settling in the municipality per 1,000 inhabitants (2025) | 30.2 ‰ | 14.9 ‰ | 16.0 ‰ | ranked 225 of 3,163 | |
| People leaving the municipality per 1,000 inhabitants (2025) | 22.5 ‰ | 20.0 ‰ | 17.3 ‰ | ranked 493 of 3,163 | |
| Live births per 1,000 inhabitants (2025) | 7.7 ‰ | 5.4 ‰ | 6.9 ‰ | ranked 1,172 of 3,157 | |
| Deaths per 1,000 inhabitants (2025) | 13.2 ‰ | 12.6 ‰ | 13.0 ‰ | ranked 1,514 of 3,163 |
Housing
| Indicator | Ostrov | Tulcea County | National | Position? | Rank |
|---|---|---|---|---|---|
| Length of the drinking-water network per 1,000 inhabitants (2025) | 9.60 km | 7.73 km | 7.67 km | ranked 970 of 2,728 | |
| Existing dwellings (2025) | 867 | 99,726 | 10,177,161 | ranked 2,692 of 3,181 | |
| Dwellings per 1,000 inhabitants (2025) | 475.9 ‰ | 458.9 ‰ | 484.8 ‰ | ranked 1,701 of 3,163 | |
| Average living floor area per dwelling (m²) (2025) | 52.4 m² | 49.3 m² | 50.3 m² | ranked 1,322 of 3,163 |
Economy
| Indicator | Ostrov | Tulcea County | National | Position? | Rank |
|---|---|---|---|---|---|
| Active companies in the trade register per 1,000 inhabitants (2026) | 15.4 ‰ | 41.6 ‰ | 29.4 ‰ | ranked 2,782 of 3,163 | |
| Companies registered in the last 12 months per 1,000 inhabitants (2026) | 1.65 ‰ | 2.25 ‰ | 2.10 ‰ | ranked 1,995 of 3,163 |
Employment
| Indicator | Ostrov | Tulcea County | National | Position? | Rank |
|---|---|---|---|---|---|
| Average number of employees per 1,000 inhabitants (2024) | 61 ‰ | 221 ‰ | 71 ‰ | ranked 1,847 of 3,163 | |
| Registered unemployed as a share of labour resources (working-age population) (2026) | 7.4% | 2.2% | 2.3% | ranked 391 of 3,163 |
Environment
| Indicator | Ostrov | Tulcea County | National | Position? | Rank |
|---|---|---|---|---|---|
| Drinking water distributed per inhabitant (m³) (2025) | 65.9 m³ | 52.8 m³ | 27.2 m³ | ranked 213 of 2,656 | |
| Length of the sewer network per 1,000 inhabitants (2025) | 3.62 km | 3.88 km | 4.05 km | ranked 940 of 1,695 |
Education
| Indicator | Ostrov | Tulcea County | National | Position? | Rank |
|---|---|---|---|---|---|
| School population (children, pupils and students) per 1,000 inhabitants (2025) | 101 ‰ | 120 ‰ | 91 ‰ | ranked 1,236 of 3,158 | |
| Education units per 10,000 inhabitants (2025) | 5.5 per 10,000 inh. | 3.5 per 10,000 inh. | 3.6 per 10,000 inh. | ranked 688 of 3,122 |
Businesses by activity: Ostrov
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 trade16 · 23.2%
- Transport and storage11 · 15.9%
- Accommodation and food services8 · 11.6%
- Administrative and support services7 · 10.1%
- Agriculture, forestry and fishing6 · 8.7%
- Construction4 · 5.8%
- Real estate4 · 5.8%
- Manufacturing3 · 4.3%
Most common activities
- Retail trade (except motor vehicles)15 · 21.7%
- Wholesale trade (except motor vehicles)11 · 15.9%
- Food and beverage service activities8 · 11.6%
- Land transport and transport via pipelines7 · 10.1%
- Crop and animal production, hunting and related services6 · 8.7%
- Specialised construction activities4 · 5.8%
- Warehousing and transport support activities4 · 5.8%
- Real estate activities4 · 5.8%
- Electricity, gas, steam and air conditioning supply3 · 4.3%
- Construction of buildings3 · 4.3%
Frequently asked questions
What is the population of Ostrov?
Ostrov has 1,822 residents (2026), ranking 2,492 of 3,181 localities.
How big is Ostrov?
Ostrov covers 53.6 km², with a density of 34 people per km².
Is the population of Ostrov growing?
Between 2016 and 2026, the population of Ostrov went from 2,101 to 1,822, a change of −13.3%.
Where is Ostrov?
Ostrov is in Tulcea County. Latitude 44.929, longitude 28.160.
People settling in the municipality per 1,000 inhabitants: what is the figure for Ostrov?
In Ostrov, “People settling in the municipality per 1,000 inhabitants” stands at 30.2 ‰ (2025), ranking 225 of 3,163 localities; the national median is 16.0 ‰.
Drinking water distributed per inhabitant (m³): what is the figure for Ostrov?
In Ostrov, “Drinking water distributed per inhabitant (m³)” stands at 65.9 m³ (2025), ranking 213 of 2,656 localities; the national median is 27.2 m³.
Which localities border Ostrov?
The nearest to Ostrov are Frecăței (7.1 km), Peceneaga (9.1 km), Dorobanțu (10 km), Dăeni (11 km), Topolog (16 km).