{"id":2754,"date":"2023-04-15T19:04:36","date_gmt":"2023-04-15T19:04:36","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=2754"},"modified":"2026-08-11T21:32:52","modified_gmt":"2026-08-11T21:32:52","slug":"jefferson-county-illinois","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/jefferson-county-illinois\/","title":{"rendered":"Jefferson County, Illinois"},"content":{"rendered":"

Jefferson County is a county in Illinois, United States, in the region known locally as
\nLittle Egypt, about 74 miles west of St. Louis, Missouri. It had a population of 37,113 at the
\n2020 census, an estimated 36,147 by 2025, and covers 584 square miles (1,510 km2), of which 571
\nsquare miles (1,480 km2) are land, centred near 38°18′N 88°55′W.<\/p>\n

Mount Vernon is the county seat and the county’s largest city; its postal code is 62864. The
\ncounty holds 3 cities, 7 incorporated villages, 1 census-designated place and 24 unincorporated
\ncommunities across 16 townships, and it runs on Central Time. Its FIPS code is 17081.<\/p>\n

Towns & Villages in Jefferson County<\/h2>\n

Jefferson County has 35 named places on record: 3 cities (one the county seat), 7 incorporated
\nvillages, 1 census-designated place and 24 unincorporated communities with no local government of
\ntheir own. CDP stands for census designated place; Unincorp. covers crossroads and rural
\ncommunities with no formal boundary.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Place<\/th>\nType<\/th>\nTownship<\/th>\nPop.<\/th>\nZIP<\/th>\n<\/tr>\n<\/thead>\n
Mount Vernon<\/td>\nCity · seat<\/td>\nMount Vernon<\/td>\n14,600<\/td>\n62864<\/td>\n<\/tr>\n
Centralia<\/td>\nCity<\/td>\nGrand Prairie<\/td>\n12,182<\/td>\n62801<\/td>\n<\/tr>\n
Ina<\/td>\nTown<\/td>\nSpring Garden<\/td>\n1,641<\/td>\n62846<\/td>\n<\/tr>\n
Bluford<\/td>\nTown<\/td>\nWebber<\/td>\n630<\/td>\n62814<\/td>\n<\/tr>\n
Woodlawn<\/td>\nTown<\/td>\nShiloh<\/td>\n617<\/td>\n62898<\/td>\n<\/tr>\n
Dix<\/td>\nTown<\/td>\nRome<\/td>\n469<\/td>\n62830<\/td>\n<\/tr>\n
Bonnie<\/td>\nTown<\/td>\nSpring Garden<\/td>\n374<\/td>\n62816<\/td>\n<\/tr>\n
Waltonville<\/td>\nTown<\/td>\nBald Hill<\/td>\n408<\/td>\n62894<\/td>\n<\/tr>\n
Belle Rive<\/td>\nTown<\/td>\nPendleton<\/td>\n309<\/td>\n62810<\/td>\n<\/tr>\n
Nason<\/td>\nCity<\/td>\nElk Prairie<\/td>\n199<\/td>\n62816<\/td>\n<\/tr>\n
Opdyke<\/td>\nCDP<\/td>\nPendleton<\/td>\n236<\/td>\n62872<\/td>\n<\/tr>\n
Bakerville<\/td>\nUnincorp.<\/td>\nDodds<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Morganville<\/td>\nUnincorp.<\/td>\nDodds<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Shirley<\/td>\nUnincorp.<\/td>\nDodds<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Camp Ground<\/td>\nUnincorp.<\/td>\nMount Vernon<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Idlewood<\/td>\nUnincorp.<\/td>\nMount Vernon<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Summersville<\/td>\nUnincorp.<\/td>\nMount Vernon<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Drivers<\/td>\nUnincorp.<\/td>\nShiloh<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Webster Hill Estates<\/td>\nUnincorp.<\/td>\nShiloh<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Spring Garden<\/td>\nUnincorp.<\/td>\nSpring Garden<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Baldwin Heights<\/td>\nUnincorp.<\/td>\nGrand Prairie<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Cravat<\/td>\nUnincorp.<\/td>\nGrand Prairie<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Emerson City<\/td>\nUnincorp.<\/td>\nBald Hill<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Scheller<\/td>\nUnincorp.<\/td>\nBald Hill<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Dareville<\/td>\nUnincorp.<\/td>\nElk Prairie<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Marcoe<\/td>\nUnincorp.<\/td>\nMcClellan<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Harmony<\/td>\nUnincorp.<\/td>\nFarrington<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Shields<\/td>\nUnincorp.<\/td>\nFarrington<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Stratton<\/td>\nUnincorp.<\/td>\nFarrington<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Divide<\/td>\nUnincorp.<\/td>\nField<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Texico<\/td>\nUnincorp.<\/td>\nField<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Boyd<\/td>\nUnincorp.<\/td>\nRome<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Markham City<\/td>\nUnincorp.<\/td>\nWebber<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Marlow<\/td>\nUnincorp.<\/td>\nWebber<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Williamsburg<\/td>\nUnincorp.<\/td>\nBlissville<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Three places on this list straddle boundaries. Centralia’s population figure above is
\ncitywide — the largest portion of the city sits in Marion County, with smaller slices
\nreaching into Jefferson, Clinton and Washington counties. Waltonville sits at the meeting point
\nof four townships (Bald Hill, Blissville, Elk Prairie and McClellan), so its village limits cross
\ntownship lines rather than sitting inside one. Nason, at 199 residents, is the least populous
\nincorporated city in Illinois and shares its 62816 ZIP with neighboring Bonnie rather than
\ncarrying one of its own.<\/p>\n

Townships<\/h2>\n

Jefferson County’s 16 townships range from Mount Vernon Township, which contains most of the
\ncounty seat, to rural Moore’s Prairie Township with no incorporated community of its own.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Township<\/th>\nPop. (2020)<\/th>\nMain settlements<\/th>\n<\/tr>\n<\/thead>\n
Mount Vernon<\/td>\n12,576<\/td>\nMount Vernon (part), Camp Ground, Idlewood, Summersville<\/td>\n<\/tr>\n
Shiloh<\/td>\n6,524<\/td>\nMount Vernon (part), Woodlawn (part), Drivers, Webster Hill Estates<\/td>\n<\/tr>\n
Dodds<\/td>\n2,690<\/td>\nMount Vernon (part), Bakerville, Morganville, Shirley<\/td>\n<\/tr>\n
Spring Garden<\/td>\n2,586<\/td>\nBonnie, Ina, Spring Garden<\/td>\n<\/tr>\n
Webber<\/td>\n2,104<\/td>\nBluford, Markham City, Marlow<\/td>\n<\/tr>\n
Rome<\/td>\n1,710<\/td>\nDix, Boyd<\/td>\n<\/tr>\n
Field<\/td>\n1,482<\/td>\nDivide, Texico<\/td>\n<\/tr>\n
McClellan<\/td>\n1,269<\/td>\nMount Vernon (part), Waltonville (part), Marcoe<\/td>\n<\/tr>\n
Casner<\/td>\n1,209<\/td>\nRural — no incorporated community<\/td>\n<\/tr>\n
Pendleton<\/td>\n1,191<\/td>\nBelle Rive, Opdyke<\/td>\n<\/tr>\n
Grand Prairie<\/td>\n900<\/td>\nCentralia (part), Baldwin Heights, Cravat<\/td>\n<\/tr>\n
Bald Hill<\/td>\n800<\/td>\nWaltonville (part), Emerson City, Scheller<\/td>\n<\/tr>\n
Elk Prairie<\/td>\n701<\/td>\nNason, Waltonville (part), Dareville<\/td>\n<\/tr>\n
Farrington<\/td>\n599<\/td>\nHarmony, Shields, Stratton<\/td>\n<\/tr>\n
Blissville<\/td>\n400<\/td>\nWaltonville (part), Williamsburg<\/td>\n<\/tr>\n
Moore’s Prairie<\/td>\n372<\/td>\nRural — no incorporated community<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

ZIP Codes<\/h2>\n