Quick answer
New Mexico has lower average 1BR rent ($1,050/mo vs $1,380/mo). State income tax: New Mexico (4.9%) vs Idaho (5.8%) — on a $120K salary that's $1,080/year difference.
State Comparison · 2026
Idaho vs New Mexico
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 New Mexico at a Glance
| Metric | Idaho | New Mexico |
|---|---|---|
| Avg 1BR rent (major metros) | $1,380 | $1,050 ✓ |
| Avg median home price | $445K | $285K ✓ |
| Cheapest city | Boise ($1,380) | Albuquerque ($1,050) ✓ |
| Priciest city | Boise ($1,380) | Albuquerque ($1,050) |
| State income tax | 5.8% | 4.9% ✓ |
| Avg walkability | 42/100 ✓ | 42/100 |
| Cities tracked | 1 | 1 |
✓ 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: New Mexico (4.9%).
Salary $80K
$720
/year saved in New Mexico
Salary $120K
$1,080
/year saved in New Mexico
Salary $200K
$1,800
/year saved in New Mexico
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.
New Mexico (NM)
Tax reality
New Mexico has a progressive state income tax up to 5.9%. Property tax is low (~0.8% effective). Sales/gross receipts tax 5.125% state + local to 7-8%. No estate tax. Overall moderate tax burden.
Top cities (1 tracked)
Top drawbacks
- ✕New Mexico ranks near the bottom of US states on multiple metrics — poverty rate, child welfare indicators, educational attainment, and violent crime. Public services are underfunded.
- ✕Albuquerque has real public safety concerns — the city has consistently been among the highest-crime per-capita major cities in the US over the past decade.
- ✕Public schools rank near the bottom of US states. Wealthy areas have private schools; public schools in most districts struggle.
Frequently Asked Questions
Is Idaho or New Mexico cheaper to live in?
New Mexico has lower average 1BR rent across major metros — $1,050/mo vs $1,380/mo in Idaho, a $330/mo difference. Home prices: New Mexico median is $285K vs $445K.
Idaho vs New Mexico: which has lower state income tax?
New Mexico has lower state income tax (4.9%) vs 5.8% in Idaho. On an $80K salary that's $720/year in savings. On $200K, savings grow to $1,800/year.
Should I move from Idaho to New Mexico?
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 New Mexico?
Idaho's largest metros include Boise. New Mexico's largest metros include Albuquerque. Cost of living varies significantly within each state — a Idaho suburb can be 40% cheaper than its flagship city, and vice versa.