50 states · DE
Quick answer: Delaware has a cost-of-living index of 101.7 (100 = national baseline), an illustrative estimated annual cost of living of about $50,850, median household income of $87,534, combined average sales tax about 0.00%, and regular gas about $3.814/gal in the June 2026 AAA snapshot used on the hub.
Income tax: Graduated 0%–6.6%
Sales tax: None statewide
Major industries: Finance/corporate services, chemicals/pharma, agriculture, tourism
Summer high ~85°F (July) · Winter low ~26°F (January)
Hagley Museum (industrial history)
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Delaware's cost-of-living index is 101.7 (national baseline 100) in this 2026 classroom snapshot.
The explorer lists an illustrative estimated annual cost of living of about $50,850 for Delaware.
Median household income in Delaware is $87,534 in this dataset.
The combined average sales tax rate shown for Delaware is 0.00%. State and local rules vary; see the Tax Foundation citation on the hub.
State income tax in Delaware: Graduated 0%–6.6%.
87-octane gas is listed at $3.814 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.