State comparison
Idaho vs New Mexico: which state is better to live in?
New Mexico costs a median household about $410 a year less in state and local taxes than Idaho, mostly because its income tax takes 4.2% of a median income against 5.0% in Idaho.
Idaho
Moderate tax burden · COL index 96
Wins 10 categories
New Mexico
Moderate tax burden · COL index 91
Wins 4 categories
Taxes: Idaho vs New Mexico
Idaho has a flat 5.8% income tax, which works out to 5.0% on a median income of $74,580, or $3,698 a year. New Mexico has a graduated income tax topping out at 5.9%, which works out to 4.2% on a median income of $74,580, or $3,112 a year. New Mexico wins on income tax at 2026 rates.
Property tax is 0.48% of home value a year in Idaho and 0.55% in New Mexico (Tax Foundation, 2023); on each state's median home that is $2,040 against $1,815, so Idaho has the lower rate.
Combined state and local sales tax averages 6.02% in Idaho and 7.82% in New Mexico; Idaho is lower.
Add it up for a household earning $74,580 (the 2022 national median) and owning the median home: $7,085 a year in Idaho, $6,677 in New Mexico. New Mexico is cheaper on total state and local tax.
Housing and cost of living
Idaho's cost of living index is 96 and New Mexico's is 91, where 100 is the national average; New Mexico is about 5% cheaper day to day.
The median home costs $425K in Idaho and $330K in New Mexico (Zillow, 2024), a $95K gap in New Mexico's favor. A two-bedroom rents for about $1,500 a month in Idaho and $1,250 in New Mexico.
Home insurance averages $800 a year in Idaho and $1,600 in New Mexico, so Idaho is cheaper to insure.
Safety
Violent crime runs 228 incidents per 100,000 residents in Idaho and 778 in New Mexico (FBI Crime Data Explorer, 2023); Idaho is the safer state by that measure, with a rate 241% lower. Property crime is 1,535 per 100,000 in Idaho against 3,286 in New Mexico, again favoring Idaho.
Health
Life expectancy is 77.7 years in Idaho and 74.1 in New Mexico (County Health Rankings, 2024), a 3.6-year edge for Idaho. The Commonwealth Fund's 2023 scorecard ranks Idaho's health system 32nd of 50 and New Mexico's 49th, so Idaho scores better on care.
9.0% of Idaho residents have no health insurance against 9.2% in New Mexico, which favors Idaho. Both states expanded Medicaid.
Schools
Education Week's 2023 Quality Counts report ranks Idaho's K-12 schools 30th in the country and New Mexico's 46th, 16 places apart in Idaho's favor. Neither state runs a school-choice voucher program.
Laws and politics
In the 2024 presidential election Idaho went to Trump by 30 points and New Mexico went to Harris by 10 points.
Idaho has permitless carry and a Giffords gun-law grade of F; New Mexico has shall-issue carry permits and a grade of B-, so New Mexico regulates guns more tightly and Idaho is the friendlier state for gun owners.
Abortion is banned with narrow exceptions in Idaho and protected by state law in New Mexico, and marijuana is illegal in Idaho and legal for adults in New Mexico as of 2026. The minimum wage is $7.25 an hour in Idaho and $12.00 in New Mexico.
Climate and risk
Natural disaster risk is moderate in Idaho (wildfire, earthquake) and high in New Mexico (wildfire, drought, flash-flood), so Idaho is the lower-risk state. Annual average air quality index is 48 in Idaho and 44 in New Mexico (under 50 is good), favoring New Mexico.
Tax figures use a household earning the national median income and owning each state's median home, at tax year 2026 rates, last checked against state sources on 2026-09-14. The table below has every number.
Taxes
Housing & Cost of Living
Crime & Safety
Healthcare
Education
Childcare
Utilities & Daily Costs
Social Policy
Category wins
10
Idaho
4
New Mexico
Run the full slider tool to score these states against your specific income, home value, retirement, and lifestyle priorities.
Score For My Profile →Questions people ask
Is Idaho or New Mexico better to live in?
It depends on what you weigh most. New Mexico on taxes ($6,677 a year for a median household against $7,085); New Mexico on everyday costs (index 91 against 96); Idaho on safety (228 violent crimes per 100,000 against 778); Idaho on schools (ranked 30th against 46th).
Which is cheaper, Idaho or New Mexico?
New Mexico is cheaper day to day: cost of living index 91 against 96. The median home is $425K in Idaho and $330K in New Mexico (2024). On state and local taxes New Mexico saves a median household about $410 a year.
Does Idaho or New Mexico have lower taxes?
New Mexico. A household earning $74,580 pays about $7,085 a year in Idaho ($3,698 income tax, $2,040 property tax on the median home and $1,347 in sales tax) and $6,677 in New Mexico ($3,112 income tax, $1,815 property tax on the median home and $1,750 in sales tax), at 2026 rates.
Which is safer, Idaho or New Mexico?
Idaho, on the FBI's 2023 figures. Violent crime is 228 per 100,000 residents in Idaho and 778 in New Mexico; property crime is 1,535 against 3,286.
Which has better schools, Idaho or New Mexico?
Idaho. Education Week's 2023 Quality Counts report ranks Idaho 30th of 50 for K-12 and New Mexico 46th.
Is Idaho or New Mexico better for retirees?
Both treat retirement income about the same. Idaho does not tax Social Security, partly exempts pensions and has no estate or inheritance tax; New Mexico does not tax Social Security, partly exempts pensions and has no estate or inheritance tax. Property tax on a median home is $2,040 a year in Idaho and $1,815 in New Mexico.