The calculated distance (air line) between Zacatepec and Iztapalapa is approximately 49 miles respectively 79 kilometers.
By car or train, the actual journey to Iztapalapa is certainly longer, as only the direct route (as the crow flies) between Zacatepec and Iztapalapa has been calculated here.
Air line (approximately)
79 kilometers
43 nautical miles