City comparison

Charleston, SC vs Rockford, IL

What a paycheck is really worth in each city: prices, rent and state taxes.

Key findings

  • Prices in Charleston, SC are 9.6% higher than in Rockford, IL. Someone earning $100,000 in Rockford, IL would need about $109,600 in Charleston, SC to live the same way.
  • Rent is the bigger story: a typical 1-bedroom costs $1,630 a month in Charleston, SC versus $895 in Rockford, IL. On $100,000, that's 26% of take-home pay in Charleston, SC and 14% in Rockford, IL.
  • Estimated state income tax on $100,000 is close: $4,843 a year in SC and $4,805 in IL.
  • For federal employees, locality pay changes a GS-13 step 1 salary by +11.8% moving from Charleston, SC to Rockford, IL ($106,437 → $118,984), while prices change by −8.7%. Net effect of the transfer: +22.5% in real buying power.
CharlestonRockford
Price level (U.S. = 100):Under 9292–9898–102102–108Over 108
  • Charleston, SC: price level 101.0 (about average)
  • Rockford, IL: price level 92.2 (cheaper)

Map drawn from Census Bureau state boundaries and metro locations9,10; dot colours show BEA price levels2.

Side by side

Charleston, SCRockford, IL
Price level (U.S. = 100)2101.092.2
$100,000 is worth, in the other city2$91,276 in Rockford$109,558 in Charleston
Typical 1-bedroom rent3$1,630/mo$895/mo
Take-home on $100,00014,15,8$74,337$74,375
State income tax on $100,000 (estimate)8$4,843 (SC)$4,805 (IL)
Rent burden on $100,00026%14%
Median pay, all jobs4$49,150$47,120
Federal locality pay area7Rest of U.S.Chicago-Naperville, IL-IN-WI

Rent areas: Charleston-North Charleston, SC MSA and Rockford, IL MSA. Metro areas: Charleston-North Charleston, SC and Rockford, IL.

What costs more or less

Charleston, SCRockford, IL
Price level (U.S. = 100)CharlestonRockford
Housing (rent)119.870.1
Goods96.393.6
Utilities88.289.4
Other services98.399.6
Overall101.092.2
BEA Regional Price Parities2. Housing covers rents.

Moving with the same $100,000 salary

Charleston, SC → Rockford, IL

Same pay goes further

Buying power +9.6%; rent takes 14% of take-home; state tax −$38/yr.

99 Strong offer

Rockford, IL → Charleston, SC

Same pay buys less

Buying power −8.7%; rent takes 26% of take-home; state tax +$38/yr.

40 Weak offer

On the GS pay scale?

Charleston, SC is in the Rest of U.S. pay area; Rockford, IL is in Chicago-Naperville, IL-IN-WI. The last column shows what a transfer from Charleston, SC to Rockford, IL at the same grade and step does to real buying power.

Grade5,2Charleston, SCRockford, ILReal change, Charleston → Rockford
GS-9 step 1$61,722$68,999+22.5%
GS-11 step 1$74,678$83,482+22.5%
GS-12 step 1$89,508$100,059+22.5%
GS-13 step 1$106,437$118,984+22.5%
GS-14 step 1$125,776$140,604+22.5%

Pay for common jobs

Median annual pay4Charleston, SCRockford, ILRockford pay in Charleston dollars
Elementary School Teachers, Except Special Education$61,020$64,200$70,336 (+15.3%)
Software Developers$132,150$107,640$117,928 (−10.8%)
Accountants and Auditors$79,350$75,260$82,453 (+3.9%)
Registered Nurses$92,800$80,930$88,665 (−4.5%)

"Not published" means BLS doesn't release an estimate for that job in that metro.

Check your own offer

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Taxes are estimates for a single filer taking the standard deduction; city and county income taxes are not included. See the methodology.

Notes & Sources

  1. U.S. Census Bureau, Metropolitan Statistical Area population estimates (Vintage 2025) (2025). Retrieved 2026-09-29.
  2. U.S. Bureau of Economic Analysis, Regional Price Parities by MSA (MARPP), all items (2024). Retrieved 2026-09-29.
  3. U.S. Department of Housing and Urban Development, Fair Market Rents, 1-bedroom (2026). Retrieved 2026-09-29.
  4. U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025, metropolitan areas (2025). Retrieved 2026-09-29.
  5. U.S. Office of Personnel Management, General Schedule (GS) pay rates with locality pay, 2026 (2026). Retrieved 2026-09-29.
  6. U.S. Office of Personnel Management, Locality codes used in the 2026 GS pay spreadsheet (2026). Retrieved 2026-09-29.
  7. U.S. Office of Personnel Management, 2026 Locality Pay Area Definitions (counties in each pay area) (2026). Retrieved 2026-09-29.
  8. Tax Foundation, State Individual Income Tax Rates and Brackets, 2026 (2026). Retrieved 2026-09-29.
  9. U.S. Census Bureau, Cartographic boundary file: states, 1:20,000,000 (2024) (2024). Retrieved 2026-09-29.
  10. U.S. Census Bureau, Gazetteer file: core based statistical areas (2025) (2025). Retrieved 2026-09-29.
  11. U.S. Census Bureau, American Community Survey 5-year estimates, 2020-2024, table C24010 (occupation of employed residents) by ZIP code area (2024). Retrieved 2026-09-29.
  12. U.S. Census Bureau, ZIP Code Tabulation Area relationship files (2020; Connecticut 2022) and Gazetteer locations (2025) (2025). Retrieved 2026-09-29.
  13. U.S. Census Bureau, Cartographic boundary files (ZIP code areas 2020; counties and states 2024) and TIGER/Line primary roads (2024) (2024). Retrieved 2026-09-29.
  14. Internal Revenue Service, Rev. Proc. 2025-32 (2026 tax brackets and standard deduction) (2026). Retrieved 2026-09-29.
  15. Internal Revenue Service, Publication 15 (Circular E), Employer's Tax Guide for 2026 (Social Security and Medicare) (2026). Retrieved 2026-09-29.
  16. U.S. Department of Labor, Employment and Training Administration, O*NET 31.0 Database: Job Titles (used under CC BY 4.0; O*NET is a trademark of USDOL/ETA) (2026). Retrieved 2026-10-14.