I read a book in high school and cannot remember the name.  The book
was a post-apocalyptic story written in a "new" language that was
created by the survivors of the nuclear war.

Dear hardyms-ga, 

I believe you are referring to Riddley Walker by Russell Hoban.

This is the publisher?s review:

"A brilliant, unique, and completely realized work of fiction,
"Riddley Walker"--first published in 1980--is set in a remote future
in a post-nuclear holocaust England (Inland), where humanity has
regressed to an iron-age, semi-literate state, represented by a
language created especially by Hoban for the book."

Barnes & Noble
http://search.barnesandnoble.com/booksearch/isbninquiry.asp?pwb=1&ean=9780253212344

Amazon.com has the first sentence of the book:
"On my naming day when I come 12 I gone front spear and kilt a wyld
boar he parbly ben the las wyld pig on the Bundel Downs any how there
hadnt ben none for a long time befor him nor I aint looking to see
none agen."

You can use their 'search inside' feature to read more of he book.
http://www.amazon.com/exec/obidos/ASIN/0253212340/103-1669328-4517405


This site is devoted to analysis of the book and includes a guide to
?Riddleyspeak?.
http://www.graphesthesia.com/rw/


I hope this is the book you are seeking. If it is not, or the answer
is unclear, then please ask for clarification of this research before
rating the answer. I shall respond to the clarification request as
soon as I receive it.
Thank you
answerfinder

Successful search strategy: post apocalyptic book "new language"

Answerfinder--
Thank you so much!  I have asked everyone from literature professors
(I myself am a psychology professor) to prolific readers, and none
have been able to answer me.  It has been so long since I read the
book (I graduated high school in 1983, which would have been shortly
after the book was published), but I just couldn't think of the name. 
This is the first time I have used Google Answers, but it won't be my
last!