1st Block Koramangala is situated in the southern part of Bangalore. The pincode of this locality is 560034. This locality is near 3rd Block Koramangala, 5th block Koramangala and Koramangala. This locality has 20+ properties to buy and 20+ properties to rent. The residents of 1st Block Koramangala rated this locality at 4.1/5 in terms of connectivity, whereas for safety, they rated it 4/5.