Cost of living in New Castle, Delaware

New Castle, Delaware has about 5,579 people. That count is a 2020–2024 Census average, not a headcount from one day.

A typical home is worth about $285,100.

HUD's fair-market rent for a 2-bedroom in New Castle County is $1,860 a month. That is the county number, not an apartment listing in New Castle. It runs from October 2026 through September 2027.

In the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area, prices sit at 102.6 when the U.S. average is 100. That is a 2024 BEA index.

Delaware taxes wages. A typical combined sales tax is 0.0% as of January 1, 2026. That mix is statewide, not New Castle's exact store tax.

In July 2026, a typical Delaware home paid 18.48¢ per kilowatt-hour. That is a state average from EIA, not New Castle's bill.

EIA does not publish a Delaware gasoline price. For the week of October 12, 2026, the Central Atlantic (PADD 1B) all-grades price was $4.470 a gallon. At 12,000 miles a year and 25 mpg, the index counts that as $2,145.60 a year. Those miles are our standard, not a Census figure, and every town in Delaware shares this price.

Among 48 places we list in Delaware with a rent figure, 10 have higher typical rent than New Castle.