Median one-bedroom rent across the cities we track is $1,133 in Idaho versus $1,430 in South Carolina. Overall, Idaho runs roughly 21% cheaper on rent than South Carolina, its main day-to-day cost driver.
Median household income across tracked cities is $81,308 in Idaho and $90,038 in South Carolina — about 10% higher in South Carolina. Idaho has a top state income tax rate of 5.30% and a 6% state sales tax; South Carolina has a top state income tax rate of 6.00% and a 6% state sales tax.
State Taxes
Housing (median across tracked cities)
Income (median across tracked cities)
Climate (median across tracked cities)
Idaho vs South Carolina — FAQ
- Is it cheaper to live in Idaho or South Carolina?
- Idaho is cheaper on rent — its median one-bedroom of $1,133 runs about 21% below South Carolina's $1,430, based on the cities we track in each state.
- How much more do you need to earn to live in Idaho than in South Carolina?
- To keep rent near the recommended 30% of gross income, based on median rent across tracked cities, you'd want to earn roughly $45,000 a year in Idaho versus $57,000 in South Carolina.
- Which has lower taxes, Idaho or South Carolina?
- Idaho has a top state income tax rate of 5.30% and a 6% state sales tax. South Carolina has a top state income tax rate of 6.00% and a 6% state sales tax.
Housing, income, and climate are medians across the 1/1 cities we track in Idaho/South Carolina — not population-weighted statewide figures. Taxes are exact state-level rates. Sources: US Census Bureau, ACS 5-Year; NOAA Climate Normals 1981–2010; Tax Foundation 2026.