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Arizona cost of living & income (2026)

Quick answer: Arizona has a cost-of-living index of 107.6 (100 = national baseline), an illustrative estimated annual cost of living of about $53,800, median household income of $81,486, combined average sales tax about 8.52%, and regular gas about $4.221/gal in the June 2026 AAA snapshot used on the hub.

COL index107.6100 = US baseline
Est. annual COL$53,800
Median HH income$81,486
Sales tax (comb.)8.52%
Gas (87 octane)$4.221/galJune 2026 AAA
Largest cityPhoenix (1,650,070)

Taxes & economy

Income tax: Flat 2.5%

Sales tax: 5.6% state (combined avg. ~8.52%)

Major industries: Technology/semiconductors, tourism, agriculture, aerospace, real estate

Climate snapshot

Summer high ~107°F (July, Phoenix area) · Winter low ~41°F (January, Phoenix area)

Culture (context)

Heard Museum / Grand Canyon area

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FAQ

What is Arizona's cost of living index?

Arizona's cost-of-living index is 107.6 (national baseline 100) in this 2026 classroom snapshot.

What is the estimated annual cost of living in Arizona?

The explorer lists an illustrative estimated annual cost of living of about $53,800 for Arizona.

What is median household income in Arizona?

Median household income in Arizona is $81,486 in this dataset.

What is the combined average sales tax rate in Arizona?

The combined average sales tax rate shown for Arizona is 8.52%. State and local rules vary; see the Tax Foundation citation on the hub.

Does Arizona have a state income tax?

State income tax in Arizona: Flat 2.5%.

What was regular gas in Arizona in this snapshot?

87-octane gas is listed at $4.221 per gallon (AAA, June 2026) in the explorer data.

Sources on the hub: Tax Foundation (sales tax), BEA / ACS (income & COL), AAA gas (June 20, 2026). Educational snapshot — not relocation or tax advice.