Places beginning with JA in Iowa, United States
- Jack Creek, Township of
- Jackson
- Jackson County
- Jackson Junction
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jacksonville
- Jacksonville
- Jacksonville (historical)
- Jacksonville, Township of
- Jacobs
- Jamaica
- James
- Jamestown
- Jamestown
- James, Township of
- Jamestown, Township of
- Jamison
- Janesville
- Jasper County
- Jasper, Township of
- Jasper, Township of
- Jay