EntityQ2661951· pop 30· linked from 39 articlesJeffersonSign in to savecity in South Dakota, United StatesConnectionsrace and ethnicity in the United States CensusEntity2020 United States CensusEntitycityEntitymarriageEntityThomas JeffersonEntityIowaEntityNebraskaEntitySouth DakotaEntitytime zoneEntitygeographic coordinate systemEntitypopulation densityEntityU.S. stateEntityDaylight saving timeConceptAfrican AmericansEntitycensusEntityMissouri RiverEntityQ5390EntityUTC−06:00EntitySioux CityEntityUnited States Census BureauEntityCategoriesCities in South DakotaCities in Union County, South DakotaSioux City metropolitan area