Mex. C.P. 56860

This is the Mexican postal Service site to look up codigos postales. It will give you what you need.
http://www.sepomex.gob.mx/Sepomex/Servicios/Busca+tu+Codigo+Postal/
Your address is in the state of Mexico, town or municipality is: Juchitepec de Mariano Riva Palacio. So, not sure exactly where this place is, it may be part of the Mexico City Metro area, but for sure it is high up in the mountains and far from the beach...

Thanks for the website but I can't use it. It's in Spanish.
Assuming Juchitepec de Mariano Riva Palacio is part of the Metro area, For a 1st timer to Mexico which direction would you choose to go from there?

Although I have been to various parts of Mexico City and surrounding area over the years, I haven't been to the town you are looking at. Here's the information I found:
" Juchitepec municipio, Mexico state, central Mexico, 29 mi/47 km SE of Mexico city, and in the Zona Metropolitana de la Ciudad de Mexico."
I would suggest doing a lot of web searches finding out all you can. For a first timer, Mexico City and surroundings might be pretty overwhelming. To get there from the airport y9u would need to a taxi or a series of buses that would require being able to speak Spanish. Likewsie, this could be a very rough area (I don't know) as some parts of Mexico City are. My advice is to communicate extensively with your friend in Mexico and get lots of specifics to see if you could work this out. One more tyhing to take into account which is purley my opinion, Mexicans are incredibly hospitable people and are often very generous when they don't have much. We became familiar with a family one summer in Saltillo and they invited us to come down and stay at there house during the winter. When we came they made tremendous sacrifices, sleeping onthe floor and insisting we take the beds, etc. We also realized we were putting them out financially. They never said a word but it became a concern to me. Anyway, over and over again, Mexican folks have given to me when they have not had enough for themselves. Anyway, get your information, because if what I found is correct, you would be going to a place that is one of the biggest municipalities in the world and quite overwhelming on occasion.