Iowa

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Statewide:
Spay Iowa

Greene County:
Paws of Greene County - Jefferson
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Guthrie County:
Panora Pets - Panora

Jefferson County:
Noah's Ark Animal Foundation - Fairfield

Johnson County:
Johnson County Humane Society - Iowa City

Linn County:
Iowa Humane Alliance - Cedar Rapids 

Washington County:
Paws and More Animal Shelter - Washington

Western Iowa:
Western Iowa's Feral Cat Program

Winneshiek County:
Humane Society of Northeast Iowa - Decorah