Sector 21 is an locality in JalVayu Vihar, Noida, Gautam Buddh Nagar District, Uttar Pradesh, India, 201301. Sector 20 (0.86 Km), Sector 26 (1.42 Km), Sector 12 (1.42 Km), Sector 27 (2.2 Km), Sector 30 (2.28 Km) are the nearby areas to Sector 21. New Delhi, Noida, Bishanpura are the nearby cities to Sector 21.