Neighboring Block Groups:
Block Group 181728-1,
Block Group 181716-1,
Block Group 181724-1,
Block Group 181726-1,
Block Group 181728-2,
Block Group 181724-2,
Block Group 181721-2,
Block Group 181726-3,
Block Group 181716-3,
Block Group 181723-3,
Block Group 181718-3