{"id":5715,"date":"2023-07-14T13:05:18","date_gmt":"2023-07-14T13:05:18","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=5715"},"modified":"2026-08-20T19:23:49","modified_gmt":"2026-08-20T19:23:49","slug":"sullivan-county-missouri","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/sullivan-county-missouri\/","title":{"rendered":"Sullivan County, Missouri"},"content":{"rendered":"

Sullivan County is a county in Missouri, United States, in the north-central part of the state, about 90 miles northeast of Kansas City. It had a population of 5,999 at the 2020 census and covers 652 square miles (1,690 km2), of which 648 square miles is land, centred near 40\u00b013\u2032N 93\u00b007\u2032W.<\/p>\n

Milan is the county seat and its postal code is 63556. The county has six incorporated cities, three villages and a scatter of small unincorporated communities and former townsites, organised into 12 civil townships. Sullivan County sits in the Central time zone.<\/p>\n

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

Sullivan County has six incorporated cities, three incorporated villages, and roughly two dozen smaller places — most are unincorporated crossroads or long-faded railroad townsites. The table below marks each place’s type; population is the 2020 census figure where the Census Bureau tracks it separately, otherwise —.<\/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
Place<\/th>\nType<\/th>\nTownship<\/th>\nPop.<\/th>\nZIP<\/th>\n<\/tr>\n<\/thead>\n
Milan<\/td>\nCity · seat<\/td>\nUnion<\/td>\n1,629<\/td>\n63556<\/td>\n<\/tr>\n
Green City<\/td>\nCity<\/td>\nJackson<\/td>\n589<\/td>\n63545<\/td>\n<\/tr>\n
Newtown<\/td>\nCity<\/td>\nDuncan<\/td>\n124<\/td>\n63666<\/td>\n<\/tr>\n
Browning<\/td>\nCity<\/td>\nBowman<\/td>\n301<\/td>\n64630<\/td>\n<\/tr>\n
Greencastle<\/td>\nCity<\/td>\nClay<\/td>\n133<\/td>\n63533<\/td>\n<\/tr>\n
Harris<\/td>\nCity<\/td>\nPleasant Hill<\/td>\n132<\/td>\n64645<\/td>\n<\/tr>\n
Humphreys<\/td>\nVillage<\/td>\nMorris<\/td>\n111<\/td>\n63563<\/td>\n<\/tr>\n
Osgood<\/td>\nVillage<\/td>\nTaylor<\/td>\n135<\/td>\n64656<\/td>\n<\/tr>\n
Pollock<\/td>\nVillage<\/td>\nPolk<\/td>\n27<\/td>\n64655<\/td>\n<\/tr>\n
Bairdston<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Boynton<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Bute<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Cookman<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Cora<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Jacksonville<\/td>\nUnincorp.<\/td>\nJackson<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Judson<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Mystic<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Owasco<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Parsons<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Paw Paw<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Pennville<\/td>\nUnincorp.<\/td>\nPenn<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Reger<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Sorrell<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Sticklerville<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Winigan<\/td>\nUnincorp.<\/td>\nLiberty<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Wintersville<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The old county directory listed “Green Castle” as a separate entry from “Greencastle city” — they are the same place, spelled two ways in older records; the duplicate is merged here into the one incorporated city, Greencastle.<\/p>\n

Townships<\/h2>\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
Union<\/td>\n—<\/td>\nMilan<\/td>\n<\/tr>\n
Jackson<\/td>\n—<\/td>\nGreen City, Jacksonville<\/td>\n<\/tr>\n
Bowman<\/td>\n—<\/td>\nBrowning<\/td>\n<\/tr>\n
Buchanan<\/td>\n—<\/td>\nrural<\/td>\n<\/tr>\n
Clay<\/td>\n—<\/td>\nGreencastle<\/td>\n<\/tr>\n
Duncan<\/td>\n—<\/td>\nNewtown<\/td>\n<\/tr>\n
Liberty<\/td>\n—<\/td>\nWinigan<\/td>\n<\/tr>\n
Morris<\/td>\n—<\/td>\nHumphreys<\/td>\n<\/tr>\n
Penn<\/td>\n—<\/td>\nPennville<\/td>\n<\/tr>\n
Pleasant Hill<\/td>\n—<\/td>\nHarris<\/td>\n<\/tr>\n
Polk<\/td>\n—<\/td>\nPollock<\/td>\n<\/tr>\n
Taylor<\/td>\n—<\/td>\nOsgood<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The Census Bureau does not report separate 2020 population counts for Missouri’s minor civil divisions in Sullivan County, so township totals are left blank rather than estimated.<\/p>\n

ZIP Codes<\/h2>\n