static variable storage class

foo.c:                         bar.c:
static int foo = 1;            static int foo = 10;
void fooTest() {               void barTest() {
  static int bar = 2;            static int bar = 20;
  foo++;                         foo++;
  bar++;                         bar++;
  printf("%d,%d", foo, bar);     printf("%d, %d", foo, bar);
}                              }

If I compile both files and link it to a main that calls fooTest() and barTest repeatedly, the printf statements increment independently. Makes sense since the foo and bar variables are local to the translation unit.
But where is the storage allocated?