Jefferson County

Batavia
Fairfield
Libertyville
Lockridge
Packwood
HASC code :US-IA-JE
FIPS 6-4 code :19101
Capital :Fairfield
Largest city :Fairfield
Elevation :High : Packwood 813 ft
Low : Lockridge 720 ft
Population :16,181
Land Area :435 sq mi
(1,127 km²)
Density :37.20/sq mi
(14.36/km²)
Time zone :UTC -6