State comparison
Arizona vs Colorado: which state is better to live in?
Arizona costs a median household about $1,800 a year less in state and local taxes than Colorado, mostly because its income tax takes 2.5% of a median income against 4.4% in Colorado.
Arizona
Moderate tax burden · COL index 102
Wins 7 categories
Colorado
Moderate tax burden · COL index 110
Wins 8 categories
Taxes: Arizona vs Colorado
Arizona has a flat 2.5% income tax, which works out to 2.5% on a median income of $74,580, or $1,865 a year. Colorado has a flat 4.4% income tax, which works out to 4.4% on a median income of $74,580, or $3,282 a year. Arizona wins on income tax at 2026 rates.
Property tax is 0.51% of home value a year in Arizona and 0.48% in Colorado (Tax Foundation, 2023); on each state's median home that is $2,142 against $2,616, so Colorado has the lower rate.
Combined state and local sales tax averages 8.37% in Arizona and 7.76% in Colorado; Colorado is lower.
Add it up for a household earning $74,580 (the 2022 national median) and owning the median home: $5,879 a year in Arizona, $7,634 in Colorado. Arizona is cheaper on total state and local tax.
Housing and cost of living
Arizona's cost of living index is 102 and Colorado's is 110, where 100 is the national average; Arizona is about 8% cheaper day to day.
The median home costs $420K in Arizona and $545K in Colorado (Zillow, 2024), a $125K gap in Arizona's favor. A two-bedroom rents for about $1,600 a month in Arizona and $1,850 in Colorado.
Home insurance averages $1,850 a year in Arizona and $2,800 in Colorado, so Arizona is cheaper to insure.
Safety
Violent crime runs 474 incidents per 100,000 residents in Arizona and 453 in Colorado (FBI Crime Data Explorer, 2023); Colorado is the safer state by that measure, with a rate 5% lower. Property crime is 2,624 per 100,000 in Arizona against 2,859 in Colorado, again favoring Arizona.
Health
Life expectancy is 76.3 years in Arizona and 78.8 in Colorado (County Health Rankings, 2024), a 2.5-year edge for Colorado. The Commonwealth Fund's 2023 scorecard ranks Arizona's health system 34th of 50 and Colorado's 9th, so Colorado scores better on care.
10.8% of Arizona residents have no health insurance against 7.4% in Colorado, which favors Colorado. Both states expanded Medicaid.
Schools
Education Week's 2023 Quality Counts report ranks Arizona's K-12 schools 45th in the country and Colorado's 9th, 36 places apart in Colorado's favor. Arizona runs a school-choice voucher program; Colorado does not.
Laws and politics
In the 2024 presidential election Arizona went to Trump by 5 points and Colorado went to Harris by 11 points.
Arizona has permitless carry and a Giffords gun-law grade of F; Colorado has shall-issue carry permits and a grade of A-, so Colorado regulates guns more tightly and Arizona is the friendlier state for gun owners.
Abortion is banned with narrow exceptions in Arizona and protected by state law in Colorado, and marijuana is legal for adults in both as of 2026. The minimum wage is $14.35 an hour in Arizona and $14.42 in Colorado.
Climate and risk
Natural disaster risk is moderate in Arizona (wildfire, extreme-heat, drought) and high in Colorado (wildfire, blizzard, tornado), so Arizona is the lower-risk state. Annual average air quality index is 46 in Arizona and 50 in Colorado (under 50 is good), favoring Arizona.
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
7
Arizona
8
Colorado
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 Arizona or Colorado better to live in?
It depends on what you weigh most. Arizona on taxes ($5,879 a year for a median household against $7,634); Arizona on everyday costs (index 102 against 110); Colorado on safety (453 violent crimes per 100,000 against 474); Colorado on schools (ranked 9th against 45th).
Which is cheaper, Arizona or Colorado?
Arizona is cheaper day to day: cost of living index 102 against 110. The median home is $420K in Arizona and $545K in Colorado (2024). On state and local taxes Arizona saves a median household about $1,800 a year.
Does Arizona or Colorado have lower taxes?
Arizona. A household earning $74,580 pays about $5,879 a year in Arizona ($1,865 income tax, $2,142 property tax on the median home and $1,873 in sales tax) and $7,634 in Colorado ($3,282 income tax, $2,616 property tax on the median home and $1,736 in sales tax), at 2026 rates.
Which is safer, Arizona or Colorado?
Colorado, on the FBI's 2023 figures. Violent crime is 474 per 100,000 residents in Arizona and 453 in Colorado; property crime is 2,624 against 2,859.
Which has better schools, Arizona or Colorado?
Colorado. Education Week's 2023 Quality Counts report ranks Arizona 45th of 50 for K-12 and Colorado 9th. Arizona also offers school-choice vouchers.
Is Arizona or Colorado better for retirees?
Arizona is friendlier to retirees on paper. Arizona does not tax Social Security, partly exempts pensions and has no estate or inheritance tax; Colorado taxes Social Security, partly exempts pensions and has no estate or inheritance tax. Property tax on a median home is $2,142 a year in Arizona and $2,616 in Colorado.