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Oklahoma cost of living & income (2026)

Quick answer: Oklahoma has a cost-of-living index of 83.5 (100 = national baseline), an illustrative estimated annual cost of living of about $41,750, median household income of $66,148, combined average sales tax about 8.99%, and regular gas about $3.460/gal in the June 2026 AAA snapshot used on the hub.

COL index83.5100 = US baseline
Est. annual COL$41,750
Median HH income$66,148
Sales tax (comb.)8.99%
Gas (87 octane)$3.460/galJune 2026 AAA
Largest cityOklahoma City (702,767)

Taxes & economy

Income tax: Flat 2.5% (reductions ongoing)

Sales tax: 4.5% state (combined avg. ~8.99%)

Major industries: Energy (oil/gas/wind), agriculture (cattle, wheat), aerospace, manufacturing, tourism

Climate snapshot

Summer high ~93°F (July) · Winter low ~27°F (January)

Culture (context)

National Cowboy & Western Heritage Museum / OKC National Memorial

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FAQ

What is Oklahoma's cost of living index?

Oklahoma's cost-of-living index is 83.5 (national baseline 100) in this 2026 classroom snapshot.

What is the estimated annual cost of living in Oklahoma?

The explorer lists an illustrative estimated annual cost of living of about $41,750 for Oklahoma.

What is median household income in Oklahoma?

Median household income in Oklahoma is $66,148 in this dataset.

What is the combined average sales tax rate in Oklahoma?

The combined average sales tax rate shown for Oklahoma is 8.99%. State and local rules vary; see the Tax Foundation citation on the hub.

Does Oklahoma have a state income tax?

State income tax in Oklahoma: Flat 2.5% (reductions ongoing).

What was regular gas in Oklahoma in this snapshot?

87-octane gas is listed at $3.460 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.