Rengsdorf is a small town on the edge of the Westerwald above the Middle Rhine Valley.
The home of Friedrich („Fritz“) Karl Henkel, founder of the Henkel company (investors of Persil).
On the B256 between Neuwied and the A3 Altenkirchen exit.
The closest rail station is Neuwied on the right hand Rhine line. The Köln–Frankfurt high-speed rail line runs near the town, but the closest station on this line is Montabaur, about three-quarters of an hour by car.
Primary administrative division