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US relocation · 2026

South Dakota flagSioux Falls → Illinois flagNaperville

At $100,000 gross, you’d need about $120,000 in Naperville to match Sioux Falls purchasing power — and same-gross take-home shifts by −$4,950/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Sioux Falls leads

City COL moves +18 from Sioux Falls (90) to Naperville (108). Parent median income delta (South Dakota → Illinois): +$8,000. At $100,000 gross: equivalent salary ~$120,000; same-gross take-home −$4,950/year.

Side-by-side city scoreboard

Sioux Falls

111

Purchasing power index · 100 = national avg

COL index
90
Parent median income
69,800 USD
Sales tax
~6.11%
Property tax
~1%
Income tax
None
$100k take-home
$79,180
Open calculator →

Naperville

93

Purchasing power index · 100 = national avg

COL index
108
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)

Sioux Falls

$100,000

Naperville

$100,000

Est. annual take-home

Sioux Falls

$79,180

Naperville

$74,230

Approx. combined tax + payroll burden

Sioux Falls

20.8%

Naperville

25.8%

Take-home difference at same gross

$-4,950 / yr in Naperville vs Sioux Falls

Equivalent gross for same lifestyle (COL-adjusted)

Naperville only

$120,000

Change vs scenario gross

Naperville only

+20%

Est. take-home at equivalent gross

Naperville only

$87,310

Burden at equivalent gross

Naperville only

27.2%

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 $6,598/mo in Sioux Falls vs $6,186/mo in Naperville—roughly $412/mo less in Naperville before housing ($4,950/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 90 for Sioux Falls and 108 for Naperville (100 = national average). The destination is about +20% 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 $120,000/yr gross in Naperville (~$10,000/mo), with estimated take-home around $7,276/mo. Versus estimated take-home in Sioux Falls at the scenario gross, that is about +10.3% (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 $5,698/mo is left after rent in Sioux Falls at the scenario gross vs $4,686/mo in Naperville at the same gross. At the equivalent gross in Naperville, about $5,776/mo after rent. Typical rent differs by about +$600/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

Sioux Falls

$900

Naperville

$1,500

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

Sioux Falls

10.8%

Naperville

18.0%

Rent as % of equivalent gross (Naperville)

Naperville only

15.0%

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

Housing: Sioux Falls → Naperville

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

1BR rent delta / yr

+$7,200

1BR % of $100k (Sioux Falls)

10.8%

$900/mo

1BR % of $100k (Naperville)

18%

$1,500/mo

Property tax (effective)

~1% → ~1.88%

Sioux Falls → Naperville

At COL-equivalent salary in Naperville, 1BR rent is about 15% of gross — vs 18% if you keep $100,000 gross.

Apartment rent (monthly)

SizeSioux FallsNapervilleDelta / mo
Studio$750$1,340+$590
1 bedroom$900$1,500+$600
2 bedroom$1,120$1,800+$680
3 bedroom$1,420$2,300+$880

House rent (monthly)

SizeSioux FallsNapervilleDelta / mo
2 bedroom$1,220$1,950+$730
3 bedroom$1,520$2,400+$880
4 bedroom$1,900$3,000+$1,100

Buy instead? Est. mortgage (3BR house)

Sioux Falls payment

$1,747/mo

Naperville payment

$2,759/mo

Payment delta

+$1,012

Est. purchase price

$328,320 → $518,400

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 Sioux Falls → Naperville

Key takeaways — Sioux Falls → Naperville

  • Naperville has a city cost-of-living index of 108 vs 90 in Sioux Falls (national average = 100) — about 20% more expensive on our index.
  • At $100,000 gross (Single filer), roughly $120,000 in Naperville matches Sioux Falls purchasing power (+20% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about −$4,950/year (Sioux Falls → Naperville) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): South Dakota ~$79,180 vs Illinois ~$74,230 (−$4,950/year) — city COL can still change the equivalent salary you need.
  • Sioux Falls sits in a no–state-income-tax state; Naperville does not — expect a larger tax bite at the same gross unless COL savings offset it.
  • Illustrative 1-bedroom rent: ~$900/mo in Sioux Falls vs ~$1,500/mo in Naperville (+$7,200/year).
  • Quality-of-life snapshot (indicative): overall 60 in Sioux Falls vs 53 in Naperville — 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.