Jasper County is a county in Iowa, United States, on the eastern edge of the Des Moines metropolitan area. It had a population of 37,813 at the 2020 census and covers 733 square miles (1,899 km2) centred near 41\u00b041\u2032N 93\u00b004\u2032W.<\/p>\n
Newton is the county seat, and its postal code is 50208. The county holds roughly a dozen incorporated cities plus a scatter of unincorporated communities, is divided into 19 civil townships, and sits in the Central time zone. Its FIPS code is 19099.<\/p>\n
Jasper County has about a dozen incorporated cities and roughly fifteen unincorporated communities. Iowa does not distinguish “towns” from “cities” — every incorporated municipality here carries the "City" designation regardless of size. Places marked Unincorp. have no municipal government of their own.<\/p>\n
| Place<\/th>\n | Type<\/th>\n | Pop.<\/th>\n | ZIP<\/th>\n<\/tr>\n<\/thead>\n |
|---|---|---|---|
| Newton<\/td>\n | City · seat<\/td>\n | 15,760<\/td>\n | 50208<\/td>\n<\/tr>\n |
| Mitchellville<\/td>\n | City<\/td>\n | 2,485<\/td>\n | —<\/td>\n<\/tr>\n |
| Colfax<\/td>\n | City<\/td>\n | 2,255<\/td>\n | 50054<\/td>\n<\/tr>\n |
| Monroe<\/td>\n | City<\/td>\n | 1,967<\/td>\n | 50170<\/td>\n<\/tr>\n |
| Prairie City<\/td>\n | City<\/td>\n | 1,700<\/td>\n | 50228<\/td>\n<\/tr>\n |
| Baxter<\/td>\n | City<\/td>\n | 962<\/td>\n | 50028<\/td>\n<\/tr>\n |
| Sully<\/td>\n | City<\/td>\n | 881<\/td>\n | 50251<\/td>\n<\/tr>\n |
| Kellogg<\/td>\n | City<\/td>\n | 606<\/td>\n | 50135<\/td>\n<\/tr>\n |
| Lynnville<\/td>\n | City<\/td>\n | —<\/td>\n | 50153<\/td>\n<\/tr>\n |
| Mingo<\/td>\n | City<\/td>\n | —<\/td>\n | 50168<\/td>\n<\/tr>\n |
| Reasnor<\/td>\n | City<\/td>\n | —<\/td>\n | 50232<\/td>\n<\/tr>\n |
| Killduff<\/td>\n | City<\/td>\n | —<\/td>\n | 50137<\/td>\n<\/tr>\n |
| Ira<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | 50127<\/td>\n<\/tr>\n |
| Clyde<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Galesburg<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Goddard<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Green Castle<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Lambs Grove<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Metz<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Newburg<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Oakland Acres<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Oswalt<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Prairiebell<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Rushville<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Severs<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Valeria<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n |
| Vandalia<\/td>\n | Unincorp.<\/td>\n | —<\/td>\n | —<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Mitchellville straddles the Jasper–Polk county line; most of the city, and its post office, sit in Polk County, so it is listed here without a Jasper-side ZIP.<\/p>\n Townships<\/h2>\nJasper County is divided into 19 civil townships: Buena Vista, Clear Creek, Des Moines, Elk Creek, Fairview, Hickory Grove, Independence, Kellogg, Lynn Grove, Malaka, Mariposa, Mound Prairie, Newton, Palo Alto, Poweshiek, Richland, Rock Creek, Sherman and Washington. Current township-level population figures and boundary maps are not published in a form this page can verify, so they are omitted rather than estimated. Newton Township holds the county seat, and Kellogg Township holds the city of Kellogg — the county’s other townships are rural and centred on the unincorporated communities and farmland between the cities listed above.<\/p>\n ZIP Codes<\/h2>\nThe unincorporated communities of Clyde, Galesburg, Goddard, Green Castle, Lambs Grove, Metz, Newburg, Oakland Acres, Oswalt, Prairiebell, Rushville, Severs, Valeria and Vandalia have no post office of their own and are served by the ZIP code of the nearest listed town.<\/p>\n Geography<\/h2>\nJasper County lies on the rolling glaciated plain east of Des Moines. The North Skunk River crosses the county’s southern half and the South Skunk River its western side, joining downstream in Keokuk County; Rock Creek and Lake Mariposa, formed by a dam on Rock Creek near Ira, are the county’s main bodies of standing water and the core of Rock Creek State Park.<\/p>\n Jasper County borders Marshall County<\/a> to the north, Poweshiek County<\/a> to the east, Mahaska County<\/a> to the southeast, Marion County<\/a> to the south, Polk County<\/a> to the west and Story County<\/a> to the northwest.<\/p>\n Jasper County’s population was 37,813 at the 2020 census, worked out to roughly 52 people per square mile of land. Newton, the county seat, is by far the largest place with 15,760 residents; Mitchellville, whose population of 2,485 is split with Polk County, is the second-largest community associated with the county. Jasper County’s median household income runs below the Iowa median of $71,433 — Newton’s manufacturing-era job losses over the past two decades have kept county income growth slower than the state’s fast-growing metro counties.<\/p>\n Newton was long a company town for the Maytag Corporation, which built washing machines there from 1893 until the plant closed in 2007. Part of the former Maytag campus is now the Iowa Speedway, a NASCAR- and IndyCar-sanctioned short track, and TPI Composites operates a wind-turbine blade factory on another section of the old site. DMACC’s Newton campus and the Jasper County seat’s role as the regional retail and medical hub for the surrounding towns round out the county’s economy; the rest of the county is farmland in corn and soybeans. Sully, settled by Dutch immigrants, still holds an annual Sully Fall Festival.<\/p>\n Jasper County was organized in 1846 and named for Sergeant William Jasper, a Revolutionary War soldier killed at the 1779 Siege of Savannah. Newton was platted as the county seat the same decade. The Maytag Corporation, founded in Newton in 1893, made the city a nationally known manufacturing center for most of the 20th century; its 2007 plant closure, after Whirlpool’s acquisition of Maytag, was one of the defining local economic events of the 2000s and prompted the redevelopment that became Iowa Speedway.<\/p>\n Interstate 80 runs east–west across the northern part of the county through Newton and Colfax; US Routes 6 and 65 and Iowa Highways 14, 117, 163, 224 and 330 serve the rest of the county.<\/p>\n Des Moines International Airport, about 30 miles west of Newton via I-80, is the nearest commercial airport.<\/p>\n Where is Jasper County, Iowa?<\/strong> What is the population of Jasper County?<\/strong> How big is Jasper County?<\/strong> What is the county seat of Jasper County?<\/strong> How many towns are in Jasper County?<\/strong> What ZIP codes are in Jasper County?<\/strong> |