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