Petersburg is a city in Monroe County.
Petersburg was founded as Summerfield in 1836 by Richard Peters, who sold the land necessary to do that. He was the first postmaster of that place. It later got the name Petersburgh in honor of the founder (and eventually had the letter aitch removed).
- Saint Peter's Lutheran Church, 343 East Center Street, ☎ .
- Petersburg United Methodist Church, 152 Saline Street, ☎ .
Area code: 734