The calculated distance (air line) between Kodamachō-kodamaminami and Saitama is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Saitama is certainly longer, as only the direct route (as the crow flies) between Kodamachō-kodamaminami and Saitama has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles