Amerikas forente stater
- Pittsburg, folketellingsutpekt sted i Lawrence County, Alabama
- Pittsburg, en by i Contra Costa-fylket, California
- Pittsburg, Williamson County landsby, Illinois
- Pittsburg, by i Crawford County, Kansas
- Pittsburg, en by i Coos County, New Hampshire
- Pittsburg, by i Pittsburg County, Oklahoma
- Pittsburg, by i Camp County, Texas