| Petersburg, Iowa | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Iowa#USA |
| Pushpin Label: | Petersburg |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Muscatine |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 771 |
| Coordinates: | 41.56°N -90.7942°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 464285[1] |
Petersburg is an unincorporated community in Muscatine County, Iowa, United States. It lies at an elevation of 771 feet (235 m). The community is part of the Muscatine Micropolitan Statistical Area.