Composite Index
102.2
US average = 100.0
Arizona (AZ) | Composite 102.2
Arizona sits at 102.2 on the 2026 C2ER cost of living index, almost exactly the US average. The 2023 transition to a flat 2.5 percent income tax (one of the lowest flat rates in the country) was a significant change. Phoenix metro has absorbed years of California in-migration; housing supply is catching up slowly. Outside Phoenix, the state is meaningfully cheaper.
Composite Index
102.2
US average = 100.0
Median Home
$394,200
2BR rent $1,380/mo
Median Income
$69,056
Household, Census ACS
Category breakdown
| Category | AZ index | National avg | Difference |
|---|---|---|---|
| Housing | 107.8 | 100.0 | 7.8% |
| Groceries | 96.5 | 100.0 | -3.5% |
| Utilities | 100.3 | 100.0 | 0.3% |
| Transportation | 101.8 | 100.0 | 1.8% |
| Healthcare | 95.3 | 100.0 | -4.7% |
| Miscellaneous | 100.4 | 100.0 | 0.4% |
Sources: BEA Regional Price Parities, C2ER Cost of Living Index, Census ACS 5-year (median income, home value), Arizona Department of Revenue (income and sales tax), EIA (electricity rates), KFF (uninsured rate), Zillow ZHVI, Arizona Department of Water Resources.
Pros / offsets
Flat 2.5 percent state income tax. Arizona transitioned from graduated brackets (which topped out at 4.5 percent) to a flat 2.5 percent rate in 2023, among the lowest non-zero state income tax rates in the country. The Arizona Department of Revenue publishes the schedule. For a high-earning household relocating from California (top marginal 13.3 percent), the saving on $200,000 of income is roughly $20,000 per year.
Low effective property tax. 0.51 percent effective rate per the Tax Foundation, well below the national average. On the $394,200 median home, the typical annual bill is around $2,000. The Arizona Constitution caps annual primary-residence assessment increases at 5 percent, which dampens the property-tax shock during rapid price appreciation.
Healthcare sub-index 95.3. Below the national average. Strong provider network in Phoenix metro (Mayo Clinic Scottsdale, Banner Health, HonorHealth) and the Veterans Health Administration in Tucson. Medicare cost burden is moderate.
Strong broadband. 195 Mbps average per FCC National Broadband Map, with 85 percent of households at 100+ Mbps. Phoenix and Tucson have full fiber options from Cox, CenturyLink/Quantum Fiber, and Google Fiber expansion.
Cons / drivers
Summer cooling cost is a real expense. Phoenix averages 100-plus degrees from June through September; air conditioning runs 24/7 for four months. Average residential electricity rate 13.62 cents per kWh per EIA is mid-pack, but consumption per household is roughly 25 percent above the US average because of cooling load. APS and SRP customer summer bills routinely exceed $300 in single-family homes.
Phoenix housing supply is constrained. Housing sub-index 107.8 statewide. Phoenix MSA median home $445,000 per Zillow ZHVI; Scottsdale and Paradise Valley routinely exceed $1 million. The 2020-2024 price run-up driven by California in-migration and remote-work flexibility absorbed available inventory faster than construction added.
Combined sales tax 7-9 percent. 5.6 percent state plus city and county can push combined rates to 8-9 percent in Phoenix metro cities. Groceries are taxed in some municipalities (Phoenix taxes groceries at the city level even though the state portion is exempt); always check the city ordinance.
Water cost will trend up. The Colorado River shortage declaration (Tier 1 in 2022, Tier 2a in 2023) reduced Arizona's Colorado River allocation; water rates in central Arizona have been adjusted upward and groundwater extraction limits in the Phoenix Active Management Area have constrained new master-planned community approvals. Long-term, water-supply cost will be a structural pressure on Arizona household budgets.
Tax + benefit signals
State income tax
2.5%
Graduated or flat
Property tax effective
0.51%
Of assessed value, annual
Sales tax (state)
5.60%
Local can add 1-4% more
Uninsured rate
9.1%
Medicaid: expanded
Metro variation
Arizona state composite 102.2 masks meaningful regional variation:
Phoenix / Scottsdale / Tempe / Mesa: Roughly 105-120 on the Regional Price Parity scale. Median home Phoenix metro $445,000. Scottsdale and Paradise Valley exceed $1 million median for single-family. The metro added more than 500,000 residents in 2020-2024.
Tucson: Roughly 90-95. Median home around $340,000. University of Arizona, Davis-Monthan Air Force Base, and a strong retiree economy. Substantially cheaper than Phoenix despite the same state-level tax structure.
Flagstaff: Roughly 115-125. Resort and Northern Arizona University demand combined with limited buildable land (Coconino National Forest surrounds the city) keeps housing tight. Median home around $625,000. Snowy winters and high elevation distinguish it from the rest of the state.
Prescott / Prescott Valley: Roughly 100-110. Retiree migration target with cooler high-desert climate. Median home around $475,000.
Yuma / Lake Havasu / smaller cities: Roughly 85-90. Median home $250,000-300,000. Agricultural-and-tourism economies with lower wages but very affordable housing.
For metro-level Regional Price Parities, the BEA publishes the full table for all Arizona MSAs.
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