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US relocation · 2026

California flagSan Diego → Illinois flagChicago

At $100,000 gross, you’d need about $80,137 in Chicago to match San Diego purchasing power — and same-gross take-home shifts by +$1,436/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Chicago leads

City COL moves -29 from San Diego (146) to Chicago (117). Parent median income delta (California → Illinois): −$15,700. At $100,000 gross: equivalent salary ~$80,137; same-gross take-home +$1,436/year.

Side-by-side city scoreboard

San Diego

68

Purchasing power index · 100 = national avg

COL index
146
Parent median income
93,500 USD
Sales tax
~9.03%
Property tax
~0.7%
Income tax
Taxed
$100k take-home
$72,794
Open calculator →

Chicago

85

Purchasing power index · 100 = national avg

COL index
117
Parent median income
77,800 USD
Sales tax
~8.98%
Property tax
~1.88%
Income tax
Taxed
$100k take-home
$74,230
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)

San Diego

$100,000

Chicago

$100,000

Est. annual take-home

San Diego

$72,794

Chicago

$74,230

Approx. combined tax + payroll burden

San Diego

27.2%

Chicago

25.8%

Take-home difference at same gross

+$1,436 / yr in Chicago vs San Diego

Equivalent gross for same lifestyle (COL-adjusted)

Chicago only

$80,137

Change vs scenario gross

Chicago only

-19.9%

Est. take-home at equivalent gross

Chicago only

$61,240

Burden at equivalent gross

Chicago only

23.6%

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 $6,066/mo in San Diego vs $6,186/mo in Chicago—roughly +$120/mo more in Chicago before housing ($1,436/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 146 for San Diego and 117 for Chicago (100 = national average). The destination is about -19.9% less 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 $80,137/yr gross in Chicago (~$6,678/mo), with estimated take-home around $5,103/mo. Versus estimated take-home in San Diego at the scenario gross, that is about -15.9% (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 $3,566/mo is left after rent in San Diego at the scenario gross vs $4,376/mo in Chicago at the same gross. At the equivalent gross in Chicago, about $3,293/mo after rent. Typical rent differs by about $690/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

San Diego

$2,500

Chicago

$1,810

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

San Diego

30.0%

Chicago

21.7%

Rent as % of equivalent gross (Chicago)

Chicago only

27.1%

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

Housing: San Diego → Chicago

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

1BR rent delta / yr

−$8,280

1BR % of $100k (San Diego)

30%

$2,500/mo

1BR % of $100k (Chicago)

21.7%

$1,810/mo

Property tax (effective)

~0.7% → ~1.88%

San Diego → Chicago

At COL-equivalent salary in Chicago, 1BR rent is about 27.1% of gross — vs 21.7% if you keep $100,000 gross.

Apartment rent (monthly)

SizeSan DiegoChicagoDelta / mo
Studio$1,950$1,550−$400
1 bedroom$2,500$1,810−$690
2 bedroom$3,200$2,200−$1,000
3 bedroom$4,200$2,800−$1,400

House rent (monthly)

SizeSan DiegoChicagoDelta / mo
2 bedroom$3,200$2,300−$900
3 bedroom$4,100$3,000−$1,100
4 bedroom$5,200$3,700−$1,500

Buy instead? Est. mortgage (3BR house)

San Diego payment

$4,714/mo

Chicago payment

$3,449/mo

Payment delta

−$1,265

Est. purchase price

$885,600 → $648,000

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 San Diego → Chicago

Key takeaways — San Diego → Chicago

  • Chicago has a city cost-of-living index of 117 vs 146 in San Diego (national average = 100) — about 20% cheaper on our index.
  • At $100,000 gross (Single filer), roughly $80,137 in Chicago matches San Diego purchasing power (-19.9% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about +$1,436/year (San Diego → Chicago) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): California ~$72,794 vs Illinois ~$74,230 (+$1,436/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$2,500/mo in San Diego vs ~$1,810/mo in Chicago (−$8,280/year).
  • Quality-of-life snapshot (indicative): overall 75 in San Diego vs 45 in Chicago — lower safety & worse weather 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.