| Official Name: | Sulphur City, Arkansas |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Arkansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Washington |
| Subdivision Type3: | Township |
| Subdivision Name3: | White River |
| Established Title: | First post office |
| Established Date: | 1882 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 414 |
| Pushpin Map: | Arkansas#USA |
| Pushpin Map Caption: | Sulphur City's position in Arkansas. |
| Coordinates: | 35.965°N -94.0506°W |
| Area Code: | 479 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 78490 |
Sulphur City (formerly Sulphur Springs and Mankins) is an unincorporated community in White River Township, Washington County, Arkansas, United States. It is located at the intersection of Black Oak Road (Washington County Road 57 CR 57) and Whitehouse Road (CR 43). The community is on the east bank of the Middle Fork of the White River. The community of Black Oak lies approximately 1.5 miles to the northwest on the opposite side of the river.[1]
The first settler in the area was Peter Mankins Sr., who ran a prosperous livestock business until the outbreak of the Civil War. A post office was built in 1882, first known as Sulphur Springs, but the name was changed to Mankins since another community by that name already existed in Benton County. Shortly after the change, the community was renamed Sulphur City. The post office closed in 1960.[2]