Is it cheaper to live in Boise or Wilmington?

Wilmington, DE is cheaper. Its monthly baseline of $1,230 (1BR rent + utilities) runs about 2% below Boise, ID's $1,260, mainly because of rent.

How much more do you need to earn to live in Boise than in Wilmington?

To keep rent near the recommended 30% of gross income, you'd want to earn roughly $45,000 a year in Boise versus $41,000 in Wilmington.

Which has lower taxes, Boise or Wilmington?

Boise is taxed under Idaho's rules (a top state income tax rate of 5.30% and a 6% state sales tax); Wilmington under Delaware's (a top state income tax rate of 6.60% and no state sales tax).

Boise vs Wilmington Cost of Living 2026

Boise

Idaho

$1,260/mo est.

Wilmington

Delaware

$1,230/mo est.

Monthly estimate = 1BR rent + electricity + gas

A one-person monthly baseline (1BR rent plus typical utilities) runs $1,260 in Boise, ID versus $1,230 in Wilmington, DE. Overall, Wilmington, DE is roughly 2% cheaper to live in day-to-day than Boise, ID, driven mainly by rent.

Median household income is $81,308 in Boise, ID and $55,269 in Wilmington, DE — about 32% higher in Boise, ID. Idaho has a top state income tax rate of 5.30% and a 6% state sales tax; Delaware has a top state income tax rate of 6.60% and no state sales tax.

Boise, ID

Wilmington, DE

Rent

Studio

$1,021

$1,103

+8% in Wilmington, DE

1 Bedroom

$1,133

$1,024

+10% in Boise, ID

2 Bedroom

$1,342

$1,213

+10% in Boise, ID

3 Bedroom

$1,749

$1,394

+20% in Boise, ID

Buying a Home

Median Home Value

$456,000

$224,500

+51% in Boise, ID

Income

Median Household Income

$81,308

$55,269

+32% in Boise, ID

Metro Median Wage (annual)

$49,100

$54,310

+11% in Wilmington, DE

People & Lifestyle

Median Age

38.2 yr

37.0 yr

+1.2 yr in Boise, ID

Homeownership

63.0%

46.0%

+17.0 pp in Boise, ID

Bachelor's+ (25+)

46.6%

33.1%

+13.5 pp in Boise, ID

Avg Commute

19.1 min

23.0 min

+3.9 min in Wilmington, DE

Crime (per 100k/yr)

Violent Crime

301

1,138.2

+278% in Wilmington, DE

Property Crime

1,135.1

3,182.4

+180% in Wilmington, DE

FBI Crime Data Explorer. Offenses per 100,000 residents per year; agency reporting practices vary, so this is approximate.

Climate

Avg Annual Temperature

52.5°F

54.9°F

+2.4°F in Wilmington, DE

Annual Precipitation

11.7 in

43.1 in

+31.3 in in Wilmington, DE

Gas

Regular Gasoline

$4.29/gal

$3.86/gal

+10% in Boise, ID

Area: Rocky Mountain (PADD 4) vs East Coast (PADD 1).

Utilities

Electricity (¢/kWh)

12.3

19.4

+57% in Wilmington, DE

Natural Gas ($/MCF)

$10.82

$22.51

+108% in Wilmington, DE

Residential, state-level averages (EIA). MCF = 1,000 cubic feet.

Groceries

Milk (gal)

$4.82

$4.00

+17% in Boise, ID

Bread (lb)

$2.04

$1.75

+14% in Boise, ID

Eggs (doz)

$2.19

$2.21

+1% in Wilmington, DE

Ground Beef (lb)

$7.36

$6.45

+12% in Boise, ID

Chicken (lb)

$2.01

$1.90

+6% in Boise, ID

Bananas (lb)

$0.70

$0.62

+12% in Boise, ID

Average prices — West vs South (BLS). Regional where available, otherwise U.S. average.

State Taxes

Sales Tax (ID / DE)

None

+6.0 pp in ID

Income Tax (top rate)

5.30%

6.60%

+1.3 pp in DE

Boise vs Wilmington — FAQ

Is it cheaper to live in Boise or Wilmington?: Wilmington, DE is cheaper. Its monthly baseline of $1,230 (1BR rent + utilities) runs about 2% below Boise, ID's $1,260, mainly because of rent.
How much more do you need to earn to live in Boise than in Wilmington?: To keep rent near the recommended 30% of gross income, you'd want to earn roughly $45,000 a year in Boise versus $41,000 in Wilmington.
Which has lower taxes, Boise or Wilmington?: Boise is taxed under Idaho's rules (a top state income tax rate of 5.30% and a 6% state sales tax); Wilmington under Delaware's (a top state income tax rate of 6.60% and no state sales tax).

Sources: US Census Bureau, ACS 5-Year (rent, income, home value, demographics); NOAA Climate Normals 1981–2010 (climate); EIA weekly retail (gas); Tax Foundation 2026 (state taxes).