{"id":3331,"date":"2023-05-04T17:56:59","date_gmt":"2023-05-04T17:56:59","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=3331"},"modified":"2026-08-15T06:36:35","modified_gmt":"2026-08-15T06:36:35","slug":"floyd-county-iowa","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/floyd-county-iowa\/","title":{"rendered":"Floyd County, Iowa"},"content":{"rendered":"

Floyd County is a county in Iowa, United States, on the state’s rolling north-central plains along the Cedar River. It had a population of 15,627 at the 2020 census and covers 501 square miles (1,300 km2) centred near 43\u00b003\u2032N 92\u00b047\u2032W.<\/p>\n

Charles City is the county seat, and its postal code is 50616. The county has seven incorporated cities, twelve civil townships, and a handful of unincorporated communities. Floyd County sits in the Central time zone.<\/p>\n

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

Floyd County has seven incorporated cities \u2014 all classed as cities under Iowa law, none as towns \u2014 plus several unincorporated places and one census-designated community. Population figures below are the 2020 census counts; unincorporated places show — where no separate census count exists.<\/p>\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
Charles City<\/td>\nCity · seat<\/td>\nSaint Charles<\/td>\n7,396<\/td>\n50616<\/td>\n<\/tr>\n
Nora Springs<\/td>\nCity<\/td>\nUnion<\/td>\n1,369<\/td>\n50458<\/td>\n<\/tr>\n
Rockford<\/td>\nCity<\/td>\nRockford<\/td>\n758<\/td>\n50468<\/td>\n<\/tr>\n
Rudd<\/td>\nCity<\/td>\nRudd<\/td>\n358<\/td>\n50471<\/td>\n<\/tr>\n
Floyd<\/td>\nCity<\/td>\nFloyd<\/td>\n313<\/td>\n50435<\/td>\n<\/tr>\n
Marble Rock<\/td>\nCity<\/td>\nRock Grove<\/td>\n271<\/td>\n50653<\/td>\n<\/tr>\n
Colwell<\/td>\nCity<\/td>\nSaint Charles<\/td>\n55<\/td>\n50620<\/td>\n<\/tr>\n
Roseville<\/td>\nCDP<\/td>\nSaint Charles<\/td>\n—<\/td>\n50616<\/td>\n<\/tr>\n
Nora Junction<\/td>\nUnincorp.<\/td>\nUnion<\/td>\n—<\/td>\n50458<\/td>\n<\/tr>\n
Midway<\/td>\nUnincorp.<\/td>\nCedar<\/td>\n—<\/td>\n50616<\/td>\n<\/tr>\n
Oakwood<\/td>\nUnincorp.<\/td>\nRockford<\/td>\n—<\/td>\n50468<\/td>\n<\/tr>\n
Powersville<\/td>\nUnincorp.<\/td>\nNiles<\/td>\n—<\/td>\n50435<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Nilesville, Aureola, Carrville, Floyd Crossing, Howardville, and the Greenfield Park manufactured-home court appear on older county maps as rural crossroads and platted settlements within Niles, Cedar, and Rock Grove townships; none carries its own post office today, and residents there use the ZIP of the nearest incorporated town.<\/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
Saint Charles<\/td>\n—<\/td>\nCharles City, Colwell, Roseville<\/td>\n<\/tr>\n
Union<\/td>\n—<\/td>\nNora Springs, Nora Junction<\/td>\n<\/tr>\n
Rockford<\/td>\n—<\/td>\nRockford, Oakwood<\/td>\n<\/tr>\n
Rock Grove<\/td>\n—<\/td>\nMarble Rock<\/td>\n<\/tr>\n
Rudd<\/td>\n—<\/td>\nRudd<\/td>\n<\/tr>\n
Floyd<\/td>\n—<\/td>\nFloyd<\/td>\n<\/tr>\n
Niles<\/td>\n—<\/td>\nPowersville, Nilesville<\/td>\n<\/tr>\n
Cedar<\/td>\n—<\/td>\nMidway<\/td>\n<\/tr>\n
Pleasant Grove<\/td>\n—<\/td>\nrural, no platted town<\/td>\n<\/tr>\n
Riverton<\/td>\n—<\/td>\nrural, no platted town<\/td>\n<\/tr>\n
Scott<\/td>\n—<\/td>\nrural, no platted town<\/td>\n<\/tr>\n
Ulster<\/td>\n—<\/td>\nrural, no platted town<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

ZIP Codes<\/h2>\n