1. Garner, Iowa, USA 
2. Geneva, Iowa, USA 
3. Gillett Grove, Iowa, USA 
4. Gilman, Iowa, USA 
5. Gladbrook, Iowa, USA 
6. Glenwood, Iowa, USA 
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7. Grand Junction, Iowa, USA 
8. Grange Township, Iowa, USA 
9. Grant Township, Iowa, USA (2) 
10. Grant, Iowa, USA 
11. Greene County, Iowa, USA 
12. Greene, Iowa, USA 
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13. Greenville, Iowa, USA 
14. Griswold, Iowa, USA 
15. Grundy Center, Iowa, USA 
16. Gundy County, Iowa, USA 
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