Phenix City is located in the county seat in Russell County in Alabama. Portions of Lee County are addressed as Phenix City, 36870 ZIP code, for the sole purpose that Smiths Station does not have full incorporation to annex the area. As of the 2010 census, the population of the city was 32,822.
The median income for a household in the city was $26,720, and the median income for a family was $33,740. Males had a median income of $28,906 versus $21,348 for females. The per capita income for the city was $14,619. About 18.8% of families and 21.3% of the population were below the poverty line, including 29.5% of those under age 18 and 20.6% of those age 65 or over.