Sierndorf: population and statistics
Sierndorf has a population of 3,973 (2026) across 55.1 km², or 72.1 people per km². It ranks 390 of 2,092 municipalities by population. Its population is growing: +4.0% between 2016 and 2026.
- 3,973 residents
- 55.1 km²
- 72 people/km²
- 187 m
Sierndorf in numbers
Key points
Among the 573 municipalities in Lower Austria, Sierndorf ranks No. 93 by population.
Municipal debt per inhabitant: 5,171 € in Sierndorf, compared with an average of 2,123 € in Lower Austria and 1,719 € nationally.
Largest business sector: Wholesale and retail trade, with 29.9% of the area's trade licences.
A 1 kWp solar panel tilted at 38° generates about 1,143 kWh a year here.
Did you know?
- “Municipal debt per inhabitant”: higher than in 97% of municipalities.
- Its area is roughly equal to 7,720 football pitches.
- The nearest more populous municipality is Stockerau (17,363 residents), 5.7 km away.
- A 4 kWp rooftop solar system here would generate about 4,572 kWh a year, roughly what an average household uses.
Population of Sierndorf over time
Sierndorf had 3,819 residents in 2016 and 3,973 in 2026.
| Year | Population |
|---|---|
| 2021 | 3,986 |
| 2022 | 3,940 |
| 2023 | 3,947 |
| 2024 | 3,954 |
| 2025 | 3,985 |
| 2026 | 3,973 |
All indicators for Sierndorf
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 | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Share of people under 15 (2026) | 15.3% | 14.3% | 14.5% | ranked 668 of 1,982 | |
| Share of people aged 65 and over (2026) | 21.8% | 22.2% | 22.1% | ranked 1,037 of 1,982 | |
| Median age (2026) | 47.9 years | – | 46.2 | ranked 683 of 1,982 | |
| Share of women (2026) | 49.8% | 50.8% | 50.3% | ranked 1,238 of 1,982 |
Housing
| Indicator | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Private households (2024) | 1,628 | 760,913 | 4,139,571 | ranked 419 of 2,091 | |
| Average household size (2024) | 2.42 persons | – | 2.35 | ranked 707 of 1,981 |
Economy
| Indicator | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Enterprises (2024) | 322 | 142,917 | 743,940 | ranked 408 of 2,091 | |
| Establishments (2024) | 349 | 163,268 | 850,266 | ranked 433 of 2,091 | |
| Establishments per 1,000 inhabitants (2024) | 87.7 | 94.5 | 91.3 | ranked 1,136 of 1,981 | |
| Active trade licences (2026) | 369 | 193,063 | 945,381 | ranked 482 of 2,088 | |
| Trade licences per 1,000 inhabitants (2026) | 92.9 | 111.6 | 98.4 | ranked 1,169 of 1,978 | |
| Municipal taxes and levies per inhabitant (2019) | 260 € | 520 € | 344 € | ranked 1,357 of 1,976 | |
| Municipal debt per inhabitant (2019) | 5,171 € | 2,123 € | 1,414 € | ranked 51 of 1,976 |
Employment
| Indicator | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Employment rate (aged 15 to 64) (2024) | 77.7% | 75.2% | 77.4% | ranked 909 of 1,981 | |
| Unemployment rate (aged 15 and over) (2024) | 3.6% | 4.9% | 3.5% | ranked 929 of 1,981 | |
| Persons employed in establishments in the municipality (2024) | 1,074 | 804,756 | 4,878,849 | ranked 637 of 2,091 | |
| Jobs per 100 inhabitants (2024) | 27.0 | 46.6 | 32.4 | ranked 1,240 of 1,981 |
Transport
| Indicator | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Share of out-commuters among employed persons by place of residence (2024) | 81.1% | 73.0% | 77.3% | ranked 577 of 1,981 |
Society
| Indicator | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2024) | 6.9% | 12.4% | 8.5% | ranked 1,214 of 1,981 | |
| Families (2024) | 1,209 | 490,205 | 2,490,615 | ranked 362 of 2,091 |
Education
| Indicator | Sierndorf | Lower Austria | National | Position | Rank |
|---|---|---|---|---|---|
| Share of people aged 15 and over with an apprenticeship, BMS, AHS or BHS as highest qualification (2024) | 67.8% | 62.9% | 66.4% | ranked 681 of 1,981 | |
| Share of people aged 15 and over with a university, academy or college qualification as highest qualification (2024) | 13.5% | 15.1% | 11.0% | ranked 547 of 1,981 |
Business sectors: Sierndorf
Share of each sector in total trade licences; “×1.5” means the sector is 1.5 times more common than nationally.
- Wholesale and retail trade29.9% ×1.3
- Professional, scientific and technical9.9% ×0.7
- Information and communication9.6% ×1.3
- Manufacturing9.1% ×1.5
- Administrative and support services8.0% ×1.0
- Construction7.7% ×1.1
- Health and social work7.1% ×0.7
- Other service activities7.1% ×0.8
Sunshine and temperatures: Sierndorf
Where is Sierndorf?
Frequently asked questions
What is the population of Sierndorf?
Sierndorf has 3,973 residents (2026), ranking 390 of 2,092 municipalities.
How big is Sierndorf?
Sierndorf covers 55.1 km², with a density of 72 people per km².
Is the population of Sierndorf growing?
Between 2016 and 2026, the population of Sierndorf went from 3,819 to 3,973, a change of +4.0%.
Where is Sierndorf?
Sierndorf is in Lower Austria. It belongs to Korneuburg (district). Latitude 48.429, longitude 16.168.
Municipal debt per inhabitant: what is the figure for Sierndorf?
In Sierndorf, “Municipal debt per inhabitant” stands at 5,171 € (2019), ranking 51 of 1,976 municipalities; the national median is 1,414 €.
Families: what is the figure for Sierndorf?
In Sierndorf, “Families” stands at 1,209 (2024), ranking 362 of 2,091 municipalities; the national median is 534.
How much electricity does a solar panel produce in Sierndorf?
In Sierndorf, a 1 kWp south-facing system tilted at 38° produces about 1,143 kWh a year.
Which municipalities border Sierndorf?
The nearest to Sierndorf are Stockerau (5.7 km), Leitzersdorf (5.8 km), Hausleiten (6.0 km), Göllersdorf (7.8 km), Spillern (8.7 km).