Labor Economics Arbitrage & Career Benchmarks

Chicago-Naperville-Elgin, IL-IN vs. Custer County, SD

Empirical side-by-side analysis of regional cost of living, HUD fair market rents, statutory tax burdens, and occupational compensation spread.

Curated Head-to-Head Matchups
IL Market

Chicago-Naperville-Elgin, IL-IN

Cost of Living Index: 125.8 · Flat Tax
All-Occupation Median (BLS) $54,720
HUD 1BR Rent$1,780/mo
Est. Take-Home$43,584/yr
Top State Tax Rate4.95%
Local Income Tax0.00%
Explore Chicago-Naperville-Elgin, IL-IN Dossier
VS
SD Market

Custer County, SD

Cost of Living Index: 102.1 · No State Income Tax
Rapid City Metro Median (BLS) $46,270
HUD 1BR Rent$949/mo
Est. Take-Home$39,358/yr
Top State Tax Rate0.00%
Local Income Tax0.00%
Explore Custer County, SD Dossier

Executive Takeaway & Purchasing Power Verdict

The BLS median wage across all occupations is $54,720 in Chicago-Naperville-Elgin, IL-IN and $46,270 in Custer County, SD (BLS figure for the Rapid City, SD metro area), 15.4% lower in Custer County. HUD's one-bedroom Fair Market Rent is $1,780 a month in Chicago and $949 in Custer County (46.7% lower in Custer County). On a $75,000 salary a single filer pays no state and local income tax in Custer County, versus $3,568 in Chicago. EPI family budgets put overall living costs 18.8% lower in Custer County, so $75,000 in Chicago goes about as far as $60,880 in Custer County. Adjusted for living costs, the median wage buys about 4.2% more in Custer County, SD than in Chicago-Naperville-Elgin, IL-IN.

Chicago-Naperville-Elgin, IL-IN vs Custer County, SD: Shared Occupation Wages

Comparing empirical BLS median wages across common professions in both labor markets.

Category / Role Chicago-Naperville-Elgin, IL-IN Median Custer County, SD Median Advantage Delta Action

Head-to-Head Comparison Frequently Asked Questions

Is it cheaper to live in Chicago-Naperville-Elgin, IL-IN or Custer County, SD?

Custer County, SD is cheaper: its cost-of-living index (from EPI family budgets, U.S. = 100) is 102.1 versus 125.8 in Chicago-Naperville-Elgin, IL-IN. HUD's one-bedroom Fair Market Rent is $1,780 a month in Chicago-Naperville-Elgin, IL-IN and $949 in Custer County, SD.

How much do I need to earn in Custer County, SD to match $75,000 in Chicago-Naperville-Elgin, IL-IN?

About $60,880. That scales $75,000 by the ratio of the two metros' cost-of-living indexes (125.8 in Chicago-Naperville-Elgin, IL-IN, 102.1 in Custer County, SD); it does not account for differences in taxes.

Do jobs pay more in Chicago-Naperville-Elgin, IL-IN or Custer County, SD?

The BLS median wage across all occupations is $54,720 in Chicago-Naperville-Elgin, IL-IN and $46,270 in Custer County, SD (BLS figure for the Rapid City, SD metro area). Pay for a specific occupation can differ; the table on this page compares BLS medians for occupations published in both metros.

How do income taxes compare between Chicago-Naperville-Elgin, IL-IN and Custer County, SD?

Chicago-Naperville-Elgin, IL-IN has a top state rate of 4.95%; a single filer earning $75,000 pays $3,568 in state and local income tax there. Custer County, SD has no state income tax; a single filer earning $75,000 pays $0 in state and local income tax there. Federal income tax and FICA are the same in both.

Where does the median wage go further?

Dividing each metro's BLS median wage by its cost-of-living index, the median wage buys about 4.2% more in Custer County, SD than in Chicago-Naperville-Elgin, IL-IN.

Reciprocal Route & Triangular Silo Links

Chicago-Naperville-Elgin, IL-IN vs. Custer County, SD: Reverse Comparison & Regional Hubs

Reverse Comparison: Custer County, SD vs. Chicago-Naperville-Elgin, IL-IN
Chicago-Naperville-Elgin, IL-IN vs. Custer County, SD Overview

Side-by-side wage, living expense, & tax arbitrage comparison for Chicago-Naperville-Elgin, IL-IN vs. Custer County, SD. Empirical BLS earnings & HUD. Official 2026 economic data for Chicago-Naperville-Elgin, IL-IN vs. Custer County, SD compiled from Bureau of Labor Statistics OEWS surveys, HUD Fair Market Rents, and statutory tax codes.

Quick answers
Is it cheaper to live in Chicago-Naperville-Elgin, IL-IN or Custer County, SD?

Custer County, SD is cheaper: its cost-of-living index (from EPI family budgets, U.S. = 100) is 102.1 versus 125.8 in Chicago-Naperville-Elgin, IL-IN. HUD's one-bedroom Fair Market Rent is $1,780 a month in Chicago-Naperville-Elgin, IL-IN and $949 in Custer County, SD.

How much do I need to earn in Custer County, SD to match $75,000 in Chicago-Naperville-Elgin, IL-IN?

About $60,880. That scales $75,000 by the ratio of the two metros' cost-of-living indexes (125.8 in Chicago-Naperville-Elgin, IL-IN, 102.1 in Custer County, SD); it does not account for differences in taxes.