Wassenaar: population and statistics
Wassenaar has a population of 27,975 (2026) across 51.4 km², or 545 people per km². It ranks 205 of 342 municipalities by population. Its population is growing: +8.1% between 2016 and 2026.
- 27,975 residents
- 51.4 km²
- 545 people/km²
- 2 m
Key points
Among the 50 municipalities in South Holland, Wassenaar ranks No. 39 by population.
Average official property value (WOZ) of dwellings: 788,000 € in Wassenaar, compared with an average of 431,489 € in South Holland and 440,410 € nationally.
Average natural gas use per dwelling: 1,250 m³ in Wassenaar, compared with an average of 709 m³ in South Holland and 793 m³ nationally.
Largest business sector: Professional, scientific and technical, with 29.2% of the area's business sites.
A 1 kWp solar panel tilted at 40° generates about 1,073 kWh a year here.
Wassenaar in numbers
Where is Wassenaar?
Neighbouring municipalities
- Voorschoten3.8 km · 25,975
- Oegstgeest5.1 km · 26,095
- Leidschendam-Voorburg6.2 km · 78,916
- Katwijk6.3 km · 67,149
- Leiden6.3 km · 130,328
- Zoeterwoude8.0 km · 10,355
- Leiderdorp8.9 km · 27,973
- The Hague9.5 km · 569,468
All municipalities in South Holland
All municipalities in Agglomeratie 's-Gravenhage (COROP region)
Municipalities of similar size
Population of Wassenaar over time
Wassenaar had 25,885 residents in 2016 and 27,975 in 2026.
| Year | Population |
|---|---|
| 2021 | 26,949 |
| 2022 | 27,115 |
| 2023 | 27,093 |
| 2024 | 27,100 |
| 2025 | 27,525 |
| 2026 | 27,975 |
Did you know?
- Number 1 in South Holland for “Share of residents aged 65 and over”.
- Number 1 in South Holland for “Average official property value (WOZ) of dwellings”.
- “Average official property value (WOZ) of dwellings”: higher than in 99% of municipalities.
- “Average natural gas use per dwelling”: higher than in 99% of municipalities.
- “Average disposable income per household”: higher than in 99% of municipalities.
- Its area is roughly equal to 7,192 football pitches.
- The nearest municipality is Voorschoten, 3.8 km away.
All indicators for Wassenaar
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 | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of residents aged 65 and over (2026) | 25.7% | 19.5% | 23.6% | ranked 89 of 342 | |
| Share of residents under 15 (2026) | 14.8% | 15.5% | 14.8% | ranked 166 of 342 | |
| Natural increase per 1,000 inhabitants (2024) | −7.8 ‰ | 0.8 ‰ | −1.3 ‰ | ranked 331 of 342 | |
| Net migration per 1,000 inhabitants (domestic and international) (2024) | 23.4 ‰ | 5.3 ‰ | 6.5 ‰ | ranked 7 of 342 |
Housing
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Housing stock (2025) | 12,461 dwellings | 1,773,459 | 8,274,510 | ranked 203 of 342 | |
| Dwellings built before 1946 (2024) | 34.4% | 19.8% | 13.1% | ranked 10 of 338 | |
| Dwellings built since 2000 (2024) | 10.3% | 20.3% | 19.9% | ranked 325 of 338 | |
| Single-family dwellings (2024) | 70.2% | 49.2% | 79.5% | ranked 252 of 342 | |
| Owner-occupied dwellings (2024) | 58.1% | 53.3% | 66.7% | ranked 284 of 342 | |
| Housing association dwellings (2024) | 25.4% | 31.1% | 23.7% | ranked 136 of 340 | |
| Average official property value (WOZ) of dwellings (2026) | 788,000 € | 431,489 € | 438,000 € | ranked 5 of 342 | |
| New dwellings in the last five years per 1,000 inhabitants (2025) | 9.6 ‰ | 19.0 ‰ | 17.4 ‰ | ranked 288 of 341 |
Energy
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Average natural gas use per dwelling (2025) | 1,250 m³ | 709 m³ | 900 m³ | ranked 4 of 342 | |
| Average electricity supplied per dwelling (2025) | 3,040 kWh | 2,422 kWh | 2,810 kWh | ranked 72 of 342 | |
| Dwellings without natural gas (2025) | 4% | 13% | 7% | ranked 287 of 342 | |
| Dwellings with solar power (2025) | 30% | 28% | 46% | ranked 309 of 342 | |
| Dwellings mainly heated by electricity (2025) | 8% | 8% | 12% | ranked 285 of 342 | |
| Area of solar parks (2022) | 0 ha | 174 ha | 3,475 ha | ranked 159 of 341 | |
| Dwellings with an individual central heating boiler (2022) | 88.7% | 78.8% | 90.3% | ranked 222 of 341 | |
| Dwellings with district heating (2022) | 0.3% | 7.7% | 0.1% | ranked 125 of 341 | |
| Average electricity fed back to the grid per dwelling (2025) | 610 kWh | 641 kWh | 1,245 kWh | ranked 316 of 342 | |
| Installed solar panel capacity per inhabitant (2025) | 679 Wp | 898 Wp | 1,707 Wp | ranked 320 of 342 | |
| Solar power installations per 1,000 inhabitants (2025) | 138.9 ‰ | 134.2 ‰ | 222.7 ‰ | ranked 318 of 342 |
Economy
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Average disposable income per household (2024) | 113,400 € | 62,019 € | 63,450 € | ranked 4 of 336 | |
| Business establishments (2026) | 4,165 | 563,040 | 2,612,530 | ranked 187 of 342 | |
| Business establishments per 1,000 inhabitants (2026) | 148.9 ‰ | 145.0 ‰ | 135.6 ‰ | ranked 92 of 342 |
Employment
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Unemployment benefits (WW), % of residents 15–65 (2026) | 1.2% | 1.5% | 1.5% | ranked 265 of 342 | |
| Social assistance (below pension age), % of residents 15–65 (2026) | 2.3% | 4.1% | 2.3% | ranked 164 of 342 |
Transport
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Privately owned passenger cars per 1,000 inhabitants (2025) | 481 ‰ | 400 ‰ | 508 ‰ | ranked 229 of 342 | |
| Average distance to the nearest railway station (2025) | 4.0 km | 5.6 km | 4.6 km | ranked 185 of 342 |
Society
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Average household size (2025) | 2.2 persons | 2.1 | 2.2 | ranked 134 of 342 | |
| Single-person households (2025) | 36.8% | 40.7% | 33.3% | ranked 92 of 342 | |
| Registered offences per 1,000 inhabitants (2025) | 42.5 ‰ | 50.7 ‰ | 30.9 ‰ | ranked 69 of 338 | |
| Theft, embezzlement and burglary per 1,000 inhabitants (2025) | 15.7 ‰ | 21.4 ‰ | 11.7 ‰ | ranked 86 of 320 | |
| Violent and sexual offences per 1,000 inhabitants (2025) | 4.0 ‰ | 5.9 ‰ | 3.9 ‰ | ranked 87 of 178 | |
| Average distance to a large supermarket (2025) | 1.3 km | 0.8 km | 1.0 km | ranked 85 of 342 |
Environment
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Household waste per inhabitant (2024) | 485 kg | 421 kg | 468 kg | ranked 145 of 340 | |
| Share of built-up and paved land (excluding water) (2022) | 16.6% | 52.0% | 16.8% | ranked 173 of 341 | |
| Share of agricultural land (excluding water) (2022) | 20.6% | 28.5% | 58.8% | ranked 298 of 341 | |
| Share of natural land, including forest (excluding water) (2022) | 54.0% | 7.6% | 11.7% | ranked 12 of 341 |
Health
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Average distance to the nearest GP practice (2025) | 1.2 km | 0.9 km | 1.2 km | ranked 143 of 342 |
Education
| Indicator | Wassenaar | South Holland | National | Position? | Rank |
|---|---|---|---|---|---|
| Residents with a higher professional or university degree (2024) | 45.3% | 33.2% | 28.5% | ranked 23 of 341 | |
| Average distance to the nearest school (2025) | 0.8 km | 0.7 km | 0.8 km | ranked 124 of 342 |
Wassenaar: indicators over time
Indicators available for several years. Hover over or tap a chart to read the value for each year.
Dwellings with an individual central heating boiler
88.7% in 2022, compared with 89.8% in 2017
Dwellings with district heating
0.3% in 2022, compared with 0.0% in 2017
Installed solar panel capacity per inhabitant
679 Wp in 2025, compared with 127 Wp in 2019
Solar power installations per 1,000 inhabitants
138.9 ‰ in 2025, compared with 33.5 ‰ in 2019
Registered offences per 1,000 inhabitants
42.5 ‰ in 2025, compared with 38.0 ‰ in 2019
Theft, embezzlement and burglary per 1,000 inhabitants
15.7 ‰ in 2025, compared with 14.1 ‰ in 2019
Violent and sexual offences per 1,000 inhabitants
4.0 ‰ in 2025, compared with 4.3 ‰ in 2019
Sunshine and temperatures: Wassenaar
| Month | Sunshine | Temperature |
|---|---|---|
| January | 23 | 4.3 |
| February | 40 | 4.3 |
| March | 86 | 6.4 |
| April | 134 | 9.6 |
| May | 164 | 13.1 |
| June | 172 | 16.4 |
| July | 168 | 18.2 |
| August | 140 | 17.9 |
| September | 96 | 15.7 |
| October | 55 | 12.3 |
| November | 27 | 7.9 |
| December | 17 | 5.3 |
Business sectors: Wassenaar
Share of each sector in total business sites; “×1.5” means the sector is 1.5 times more common than nationally.
- Professional, scientific and technical29.2% ×1.4
- Health and social work12.9% ×1.2
- Wholesale and retail trade10.7% ×0.8
- Construction7.0% ×0.7
- Education5.9% ×1.0
- Finance and insurance5.3% ×1.9
- Arts, entertainment and recreation5.0% ×0.9
- Information and communication4.3% ×0.8
Frequently asked questions
What is the population of Wassenaar?
Wassenaar has 27,975 residents (2026), ranking 205 of 342 municipalities.
How big is Wassenaar?
Wassenaar covers 51.4 km², with a density of 545 people per km².
Is the population of Wassenaar growing?
Between 2016 and 2026, the population of Wassenaar went from 25,885 to 27,975, a change of +8.1%.
Where is Wassenaar?
Wassenaar is in South Holland. It belongs to Agglomeratie 's-Gravenhage (COROP region). Latitude 52.145, longitude 4.401.
Average official property value (WOZ) of dwellings: what is the figure for Wassenaar?
In Wassenaar, “Average official property value (WOZ) of dwellings” stands at 788,000 € (2026), ranking 5 of 342 municipalities; the national median is 438,000 €.
Average natural gas use per dwelling: what is the figure for Wassenaar?
In Wassenaar, “Average natural gas use per dwelling” stands at 1,250 m³ (2025), ranking 4 of 342 municipalities; the national median is 900 m³.
How much electricity does a solar panel produce in Wassenaar?
In Wassenaar, a 1 kWp south-facing system tilted at 40° produces about 1,073 kWh a year.
Which municipalities border Wassenaar?
The nearest to Wassenaar are Voorschoten (3.8 km), Oegstgeest (5.1 km), Leidschendam-Voorburg (6.2 km), Katwijk (6.3 km), Leiden (6.3 km).