Cities:
Clear Lake,
Dougherty,
Fertile,
Grafton,
Hanlontown,
Joice,
Kensett,
Manly,
Mason City,
Meservey,
Nora Springs,
Northwood,
Plymouth,
Rock Falls,
Rockwell,
Swaledale,
Thornton,
Ventura
Townships:
Barton,
Bath,
Bristol,
Brookfield,
Clear Lake,
Danville,
Deer Creek,
Dougherty,
Falls,
Fertile,
Geneseo,
Grant,
Grimes,
Grove,
Hartland,
Kensett,
Lake,
Lime Creek,
Lincoln,
Lincoln,
Mason,
Mount Vernon,
Owen,
Pleasant Valley,
Portland,
Silver Lake,
Union,
Union
ZIP Codes:
50401,
50428,
50433,
50434,
50440,
50444,
50446,
50448,
50449,
50450,
50456,
50457,
50458,
50459,
50464,
50467,
50468,
50469,
50472,
50475,
50477,
50479,
50482
Unified School Districts: