Quick answer
Utah has lower average 1BR rent ($1,275/mo vs $1,380/mo). State income tax: Utah (4.65%) vs Idaho (5.8%) — on a $120K salary that's $1,380/year difference.
State Comparison · 2026
Idaho vs Utah
Side-by-side on state income tax, rent, home prices, climate, and top metros — with specific dollar numbers for every claim.
Last updated: April 23, 2026
Idaho vs Utah at a Glance
| Metric | Idaho | Utah |
|---|---|---|
| Avg 1BR rent (major metros) | $1,380 | $1,275 ✓ |
| Avg median home price | $445K ✓ | $520K |
| Cheapest city | Boise ($1,380) | Provo ($1,100) ✓ |
| Priciest city | Boise ($1,380) | Salt Lake City ($1,450) |
| State income tax | 5.8% | 4.65% ✓ |
| Avg walkability | 42/100 | 65/100 ✓ |
| Cities tracked | 1 | 2 |
✓ marks the lower or more favorable value. Averages use the major metros we track in each state.
State Income Tax: Real Savings
What the rate gap actually looks like in your paycheck. Lower rate: Utah (4.65%).
Salary $80K
$920
/year saved in Utah
Salary $120K
$1,380
/year saved in Utah
Salary $200K
$2,300
/year saved in Utah
Calculation uses the effective state rate difference × gross salary. Doesn't include property tax, sales tax, or federal impact.
Deep Dive: Each State
Idaho (ID)
Tax reality
Idaho has a 5.8% flat state income tax (moderate). Property tax is low (~0.6% effective). Sales tax 6%. No estate tax. Overall moderate tax burden.
Top cities (1 tracked)
Top drawbacks
- ✕Housing growth has outpaced wage growth. Long-time Idaho residents have been priced out of Boise proper.
- ✕Summer wildfire smoke affects air quality regularly — July through September can have multiple weeks of AQI 150-200+.
- ✕Idaho is deeply conservative politically, with some policy shifts (abortion, LGBTQ+, religion in schools) recently tightening. Boise specifically leans moderate; the rest of the state is more conservative.
Utah (UT)
Tax reality
Utah has a 4.55% flat state income tax (moderate). Property tax is low (~0.55% effective). Sales tax 4.85% state + local to 7-8%. No estate tax. Overall favorable tax environment.
Top cities (2 tracked)
Top drawbacks
- ✕Winter air quality in SLC is genuinely bad. Temperature inversions trap pollution in the valley for weeks at a time — SLC occasionally has worse AQI than Beijing. January-February air quality is a real health consideration.
- ✕Growth has been intense. SLC metro added 300,000+ people in the last decade. Housing prices followed: $2,050/mo 1BR, $560K median home — well above most people's 'Utah is cheap' mental model.
- ✕Traffic along I-15 during rush hour is a parking lot. The state has invested heavily in light rail (TRAX, FrontRunner) but most residents still drive.
Frequently Asked Questions
Is Idaho or Utah cheaper to live in?
Utah has lower average 1BR rent across major metros — $1,275/mo vs $1,380/mo in Idaho, a $105/mo difference. Home prices: Idaho median is $445K vs $520K.
Idaho vs Utah: which has lower state income tax?
Utah has lower state income tax (4.65%) vs 5.8% in Idaho. On an $80K salary that's $920/year in savings. On $200K, savings grow to $2,300/year.
Should I move from Idaho to Utah?
Idaho has a 5.8% flat state income tax (moderate). Property tax is low (~0.6% effective). Sales tax 6%. No estate tax. Overall moderate tax burden.
What are the best cities in Idaho vs Utah?
Idaho's largest metros include Boise. Utah's largest metros include Salt Lake City, Provo. Cost of living varies significantly within each state — a Idaho suburb can be 40% cheaper than its flagship city, and vice versa.