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US relocation · 2026

Illinois flagChicago → Alabama flagBirmingham

At $100,000 gross, you’d need about $72,650 in Birmingham to match Chicago purchasing power — and same-gross take-home shifts by +$215/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Birmingham leads

City COL moves -32 from Chicago (117) to Birmingham (85). Parent median income delta (Illinois → Alabama): −$16,600. At $100,000 gross: equivalent salary ~$72,650; same-gross take-home +$215/year.

Side-by-side city scoreboard

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 →

Birmingham

118

Purchasing power index · 100 = national avg

COL index
85
Parent median income
61,200 USD
Sales tax
~9.46%
Property tax
~0.37%
Income tax
Taxed
$100k take-home
$74,445
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)

Chicago

$100,000

Birmingham

$100,000

Est. annual take-home

Chicago

$74,230

Birmingham

$74,445

Approx. combined tax + payroll burden

Chicago

25.8%

Birmingham

25.6%

Take-home difference at same gross

+$215 / yr in Birmingham vs Chicago

Equivalent gross for same lifestyle (COL-adjusted)

Birmingham only

$72,650

Change vs scenario gross

Birmingham only

-27.4%

Est. take-home at equivalent gross

Birmingham only

$56,571

Burden at equivalent gross

Birmingham only

22.1%

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 $6,186/mo in Chicago vs $6,204/mo in Birmingham—roughly +$18/mo more in Birmingham before housing ($215/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 117 for Chicago and 85 for Birmingham (100 = national average). The destination is about -27.4% 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 $72,650/yr gross in Birmingham (~$6,054/mo), with estimated take-home around $4,714/mo. Versus estimated take-home in Chicago at the scenario gross, that is about -23.8% (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 $4,376/mo is left after rent in Chicago at the scenario gross vs $5,184/mo in Birmingham at the same gross. At the equivalent gross in Birmingham, about $3,694/mo after rent. Typical rent differs by about $790/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

Chicago

$1,810

Birmingham

$1,020

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

Chicago

21.7%

Birmingham

12.2%

Rent as % of equivalent gross (Birmingham)

Birmingham only

16.8%

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

Housing: Chicago → Birmingham

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

1BR rent delta / yr

−$9,480

1BR % of $100k (Chicago)

21.7%

$1,810/mo

1BR % of $100k (Birmingham)

12.2%

$1,020/mo

Property tax (effective)

~1.88% → ~0.37%

Chicago → Birmingham

At COL-equivalent salary in Birmingham, 1BR rent is about 16.8% of gross — vs 12.2% if you keep $100,000 gross.

Apartment rent (monthly)

SizeChicagoBirminghamDelta / mo
Studio$1,550$850−$700
1 bedroom$1,810$1,020−$790
2 bedroom$2,200$1,280−$920
3 bedroom$2,800$1,580−$1,220

House rent (monthly)

SizeChicagoBirminghamDelta / mo
2 bedroom$2,300$1,350−$950
3 bedroom$3,000$1,680−$1,320
4 bedroom$3,700$2,100−$1,600

Buy instead? Est. mortgage (3BR house)

Chicago payment

$3,449/mo

Birmingham payment

$1,931/mo

Payment delta

−$1,518

Est. purchase price

$648,000 → $362,880

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 Chicago → Birmingham

Key takeaways — Chicago → Birmingham

  • Birmingham has a city cost-of-living index of 85 vs 117 in Chicago (national average = 100) — about 27% cheaper on our index.
  • At $100,000 gross (Single filer), roughly $72,650 in Birmingham matches Chicago purchasing power (-27.4% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about +$215/year (Chicago → Birmingham) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): Illinois ~$74,230 vs Alabama ~$74,445 (+$215/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$1,810/mo in Chicago vs ~$1,020/mo in Birmingham (−$9,480/year).
  • Quality-of-life snapshot (indicative): overall 45 in Chicago vs 52 in Birmingham — lower safety & better 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.