
Newton
- County:
- Jasper County
- County Seat:
- Yes
- Area (mi²):
- 11.255
- State:
- Iowa
Newton is a city located in Jasper County, Iowa. Newton has a 2025 population of 15,576. It is also the county seat of .Newton is currently declining at a rate of -0.22% annually and its population has decreased by -1.09% since the most recent census, which recorded a population of 15,748 in 2020.
The average household income in Newton is $73,509 with a poverty rate of 11.22%. The median age in Newton is 43.2 years: 39.6 years for males, and 47.2 years for females.