Jasper County
Also known as Jasper County, Missouri, Jasper County, MO
county in Missouri, United States
Key facts
- Country
- United States
- State
- Missouri
- Founded
- January 2, 1841
- Named after
- William Jasper
- Seat
- Carthage
- Largest city
- Joplin
- Total
- 641 sq mi (1,660 km )
- Land
- 638 sq mi (1,650 km )
- Water
- 2.8 sq mi (7.3 km ) 0.4%
- Estimate 2025
- 127,428
- Density
- 192/sq mi (74.3/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
Article
Jasper County is located in the southwest portion of the U.S. state of Missouri. As of the 2020 census, the population was 122,761. Its county seat is Carthage, and its largest city is Joplin. The county was organized in 1841 and named for William Jasper, a hero of the American Revolutionary War. Jasper County is included in the Joplin Metropolitan Statistical Area. The Jasper County Sheriff's Office has legal jurisdiction throughout the county.
History