A few facts about Ter Aar
- Ter Aar has a population of about 9,600.
- It's part of South Holland.
- Rotterdam, the largest city in the Netherlands, is about 31 km away.
- The nearest bigger city is Alphen aan den Rijn, about 5 km away.
- Towns nearby: Leiden (15 km), Hoofddorp (15 km) and Gouda (17 km).