Idaho vs New Mexico Cost of Living
Purchasing power
Your $75,000 is worth different amounts in each state
$75,529
in Idaho
$80,043
in New Mexico
Each cell = 1% of purchasing power. Green = value, red = gap.
Spending breakdown
Estimated annual spending on a $75,000 salary
What things actually cost
Real dollar costs side by side
Category breakdown
| Category | Idaho | New Mexico | Difference |
|---|---|---|---|
| Housing | 100.3 | 88.6 | +13% |
| Groceries | 98.9 | 97.0 | +2% |
| Utilities | 73.0 | 83.8 | -13% |
| Transportation | 106.5 | 93.6 | +14% |
| Healthcare | 106.9 | 108.3 | -1% |
| Dining & Misc | 102.4 | 97.2 | +5% |
| Overall | 99.3 | 93.7 | +6% |
Index values relative to national average (100). Positive difference = more expensive in Idaho.
What things actually cost
| Item | Idaho | New Mexico | Difference |
|---|---|---|---|
| Median home price | $420,000 | $290,000 | +$130,000 |
| Average 2BR rent | $1,404/mo | $1,240/mo | +$164 |
| Gas price | $3.41/gal | $3.42/gal | $0.01 |
| Electric bill | $84/mo | $81/mo | +$3 |
| Infant childcare | $9,630/yr | $14,244/yr | $4,614 |
Salary equivalent: Idaho → New Mexico
What a Idaho salary buys you in New Mexico, adjusted for cost of living.
| Salary in Idaho | Equivalent in New Mexico | Difference |
|---|---|---|
| $50,000 | $47,180 | +$2,820 |
| $75,000 | $70,770 | +$4,230 |
| $100,000 | $94,361 | +$5,639 |
| $150,000 | $141,541 | +$8,459 |
| $200,000 | $188,721 | +$11,279 |
Positive = your money goes further in New Mexico. Based on overall COL index ratio.
Based on MERIC/C2ER 2025 composite indices. Dollar amounts from AAA, EIA, Zillow, and Child Care Aware.
Overview
Idaho is 6% more expensive than New Mexico overall. Idaho has an index of 99.3 vs 93.7 for New Mexico (national average = 100).
FAQ
Is it cheaper to live in Idaho or New Mexico?
New Mexico is cheaper to live in. Idaho is 6% more expensive overall. The biggest driver is housing — median home prices are $420,000 in Idaho vs $290,000 in New Mexico.
Is New Mexico cheaper than Idaho?
Yes, New Mexico is 6% cheaper than Idaho overall based on the MERIC/C2ER cost-of-living index. Housing, groceries, and utilities all factor into the difference.
Is Idaho more expensive than New Mexico?
Yes, Idaho is 6% more expensive than New Mexico based on the MERIC/C2ER composite index. Housing is typically the largest factor in the difference.
What salary in New Mexico equals $100,000 in Idaho?
To maintain the same purchasing power as a $100,000 salary in Idaho, you would need approximately $94,361 in New Mexico. This is based on the overall cost-of-living index (99.3 vs 93.7).
How do housing costs compare between Idaho and New Mexico?
Housing is significantly cheaper in New Mexico. Median home prices are $420,000 in Idaho vs $290,000 in New Mexico — a $130,000 difference. Average 2-bedroom rent is $1,404/mo vs $1,240/mo.
What costs more in Idaho vs New Mexico?
Transportation is 14% higher in Idaho (index 106.5 vs 93.6). Housing is 13% higher in Idaho (index 100.3 vs 88.6). Utilities is 13% lower in Idaho (index 73 vs 83.8).
Is gas cheaper in Idaho or New Mexico?
Gas averages $3.41/gallon in Idaho and $3.42/gallon in New Mexico — a $0.01 difference per gallon.
Idaho vs New Mexico cost of living — how do they compare?
Idaho has an overall cost-of-living index of 99.3 and New Mexico has 93.7 (national average = 100). Idaho is 6% more expensive overall. Use the calculator above to see how this affects your specific salary.
How do taxes compare between Idaho and New Mexico?
Cost of living is only part of the picture — state income taxes also affect your take-home pay. Idaho has a flat income tax rate of 5.80%, simplified from a progressive system. New Mexico uses a progressive income tax with 4 brackets and a top rate of 5.90% on income over $210,000. Use the Idaho vs New Mexico paycheck comparison to see how a specific salary compares after federal and state taxes, FICA, and deductions.
Do I need to file state tax returns in Idaho and New Mexico?
Idaho requires residents to file a state income tax return annually, typically due April 15. New Mexico requires residents to file a state income tax return annually, typically due April 15. If you move between states mid-year, you typically file a part-year resident return in each state for the income earned while living there.
Where does this cost of living data come from?
Cost-of-living indices are from the MERIC/C2ER 2025 Annual Average. Dollar amounts use AAA gas prices (March 2025), EIA electricity rates (2024), Child Care Aware childcare costs (2024), Zillow home values (2024-2025), and BEA Regional Price Parities.
Related tools
- Idaho Cost of Living — Housing, groceries, gas, and more
- New Mexico Cost of Living — Housing, groceries, gas, and more
- Idaho vs New Mexico Paycheck Comparison — Compare take-home pay after taxes
- House Affordability in Idaho — How much house can you afford?
- House Affordability in New Mexico — How much house can you afford?
- Idaho Tax Brackets — See 2026 marginal rates
- New Mexico Tax Brackets — See 2026 marginal rates
- Idaho Mortgage Calculator — Estimate monthly payments with local rates
- New Mexico Mortgage Calculator — Estimate monthly payments with local rates
- Idaho Bonus Tax Calculator — See how bonuses are taxed differently
- New Mexico Bonus Tax Calculator — See how bonuses are taxed differently
- Gross-Up Calculator — Find the salary you need to hit a target take-home
- Salary to Hourly Converter — Convert annual salary to hourly rate
- Compare any two states
Based on MERIC/C2ER 2025 composite indices and publicly available price data. Cost of living varies significantly by metro area within a state. These are statewide averages.