The population of Katwijk aan den Rijn is 6,020.
Koudekerk aan den Rijn's population is 4,257.
Ouderkerk aan den IJssel's population is 5,700.
Krimpen aan den IJssel's population is 28,757.
The population of Alphen aan den Rijn is 72,674.
Capelle aan den IJssel's population is 65,501.
Capelle aan den IJssel's population density is 4,580 people per square kilometer.
The population density of Krimpen aan den IJssel is 3,673 people per square kilometer.
The area of Ouderkerk aan den IJssel is 18.14 square kilometers.
The area of Krimpen aan den IJssel is 8,930,000.0 square meters.
The area of Alphen aan den Rijn is 57.68 square kilometers.
The area of Capelle aan den IJssel is 15.42 square kilometers.
Alphen aan den Rijn railway station was created in 1878.