Jefferson County
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- Population
- 229,458
- Area
- 656.26 sq mi (1,699.71 km²), 7.83 sq mi water
- Median age
- 40.3
- Households
- 88,309
- Persons per household
- 2.6
- Median household income
- $82,851
- Median house value
- $237,200
Demographics: 2020–2024 ACS
Today
69°F
Slight Chance Rain Showers then Mostly Cloudy20% precip
Tonight
48°F
Partly Cloudy3% precip
Saturday
72°F
Sunny
Saturday Night
48°F
Partly Cloudy
Cities & Towns in Jefferson County
ArnoldBarnhartBriarwood EstatesByrnes MillCedar HillCedar Hill LakesCrystal CityDe SotoEurekaFestusHerculaneumHigh RidgeHillsboroHorineImperialKimmswickLaBarque CreekLake TekakwithaMurphyOlympian VillageParkdalePeaceful VillagePevelyRaintree PlantationScotsdaleSummer SetUnincorporated Jefferson County
Local News
City of Eureka
Published 23 hours ago
Old Town Oktoberfest
Jefferson County
Published September 25
MODOT Announces US Route 61-67 Corridor Safety Demonstration
Jefferson County
Published September 23
Project Redbird South Phase 3 (US-61 Roundabout)
City of Eureka
Published September 18
Parks and Recreation Department Now Hiring
The Eureka Parks and Recreation Department is now hiring a Full Time Recreation Assistant - Programs & Athletics!
Jefferson County
Published September 08