Political subdivision

1. Any unit of government, such as counties, cities, school districts, and water and conservation districts having authority to hold elections for public offices or on ballot measures.

Source: Election Terminology Glossary - Draft, National Institute of Standards and Technology (NIST), https://pages.nist.gov/ElectionGlossary/; Glossary of terms database; U.S. Election Assistance Commission https://www.eac.gov/glossary/