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US relocation · 2026

Idaho flagBoise → Washington

At $100,000 gross, you’d need about $132,353 in Washington to match Boise purchasing power — and same-gross take-home shifts by −$1,260/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Boise leads

City COL moves +33 from Boise (102) to Washington (135). At $100,000 gross: equivalent salary ~$132,353; same-gross take-home −$1,260/year.

Side-by-side city scoreboard

Boise

98

Purchasing power index · 100 = national avg

COL index
102
Parent median income
70,800 USD
Sales tax
~6.03%
Property tax
~0.5%
Income tax
Taxed
$100k take-home
$73,880
Open calculator →

Washington

74

Purchasing power index · 100 = national avg

COL index
135
Parent median income
—
Sales tax
~6%
Property tax
~0.56%
Income tax
Taxed
$100k take-home
$72,620
Open calculator →
●Example scenario: $100,000 gross (Single filer, 2026)
Illustrative numbers only—same formulas as the calculator. Take-home rows assume you earn the scenario gross while living in each city (local taxes apply). Below the tables, use “Open calculator — personalize results” to enter your salary, filing status, rent or buy, and more—the full tool uses this same city pair.

Salary & estimated take-home (USD)

Annual gross (scenario)

Boise

$100,000

Washington

$100,000

Est. annual take-home

Boise

$73,880

Washington

$72,620

Approx. combined tax + payroll burden

Boise

26.1%

Washington

27.4%

Take-home difference at same gross

$-1,260 / yr in Washington vs Boise

Equivalent gross for same lifestyle (COL-adjusted)

Washington only

$132,353

Change vs scenario gross

Washington only

+32.4%

Est. take-home at equivalent gross

Washington only

$92,419

Burden at equivalent gross

Washington only

30.2%

Snapshot: how to read this move ($100,000 scenario)

  • Monthly take-home at the same gross. At $100,000/year, estimated take-home is about $6,157/mo in Boise vs $6,052/mo in Washington—roughly $105/mo less in Washington before housing ($1,260/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 102 for Boise and 135 for Washington (100 = national average). The destination is about +32.4% more expensive than the origin for that basket—then state/province and payroll taxes shift take-home further.

  • Equivalent salary to keep the same lifestyle. To match purchasing power after COL, the model suggests about $132,353/yr gross in Washington (~$11,029/mo), with estimated take-home around $7,702/mo. Versus estimated take-home in Boise at the scenario gross, that is about +25.1% (by design, equivalent gross targets similar real spending power after COL and taxes; exact match varies with rounding).

  • Cash after typical 1BR rent (illustrative). Using average 1-bedroom rent in the housing table, roughly $4,877/mo is left after rent in Boise at the scenario gross vs $3,852/mo in Washington at the same gross. At the equivalent gross in Washington, about $5,502/mo after rent. Typical rent differs by about +$920/mo between the two cities in our data.

Figures use the same tax and COL engine as the calculator; your household, deductions, and neighborhood can change outcomes. Use the calculator below for your exact salary and housing choice.

Housing snapshot · average rent · 1-bedroom apartment

Typical monthly rent

Boise

$1,280

Washington

$2,200

Rent as % of scenario gross ($100,000/yr)

Boise

15.4%

Washington

26.4%

Rent as % of equivalent gross (Washington)

Washington only

19.9%

Rent benchmarks are city-level estimates; neighborhoods vary. Mortgage (buy) and other home sizes are available in the full calculator.

Housing: Boise → Washington

Approximate median monthly rents for the primary metros in Boise and Washington. Negative delta means housing is cheaper in Washington. Figures are planning estimates — neighborhoods vary.

1BR rent delta / yr

+$11,040

1BR % of $100k (Boise)

15.4%

$1,280/mo

1BR % of $100k (Washington)

26.4%

$2,200/mo

Property tax (effective)

~0.5% → ~0.56%

Boise → Washington

At COL-equivalent salary in Washington, 1BR rent is about 19.9% of gross — vs 26.4% if you keep $100,000 gross.

Apartment rent (monthly)

SizeBoiseWashingtonDelta / mo
Studio$1,050$1,950+$900
1 bedroom$1,280$2,200+$920
2 bedroom$1,580$2,950+$1,370
3 bedroom$1,980$3,800+$1,820

House rent (monthly)

SizeBoiseWashingtonDelta / mo
2 bedroom$1,680$3,000+$1,320
3 bedroom$2,100$3,800+$1,700
4 bedroom$2,650$4,800+$2,150

Buy instead? Est. mortgage (3BR house)

Boise payment

$2,414/mo

Washington payment

$4,369/mo

Payment delta

+$1,954

Est. purchase price

$453,600 → $820,800

Illustrative P&I only: 20% down, 7% APR, 30-year fixed. Price ≈ annual rent × 18 (price-to-rent). Taxes, insurance, and HOA not included — open the calculator Housing section to adjust.

Sources: approximate metro medians (Zillow / Zumper-style US benchmarks; CMHC-style for Canada). Property tax rates are statewide effective averages. Personalize unit size, rent vs buy, and down payment in the relocation calculator.

Model housing for Boise → Washington

Key takeaways — Boise → Washington

  • Washington has a city cost-of-living index of 135 vs 102 in Boise (national average = 100) — about 32% more expensive on our index.
  • At $100,000 gross (Single filer), roughly $132,353 in Washington matches Boise purchasing power (+32.4% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about −$1,260/year (Boise → Washington) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): Idaho ~$73,880 vs District of Columbia ~$72,620 (−$1,260/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$1,280/mo in Boise vs ~$2,200/mo in Washington (+$11,040/year).
  • Quality-of-life snapshot (indicative): overall 63 in Boise vs 54 in Washington — lower safety in the new city.

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Estimates for planning only. Cost-of-living indices and tax rules change; verify with local sources or a professional before relocating.