City comparison

Fort Collins, CO vs Rockford, IL

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

Key findings

  • Prices in Fort Collins, CO are 9.7% higher than in Rockford, IL. Someone earning $100,000 in Rockford, IL would need about $109,700 in Fort Collins, CO to live the same way.
  • Rent is the bigger story: a typical 1-bedroom costs $1,537 a month in Fort Collins, CO versus $895 in Rockford, IL. On $100,000, that's 24% of take-home pay in Fort Collins, CO and 14% in Rockford, IL.
  • On $100,000, estimated state income tax is about $1,114 a year higher in Rockford, IL than in Fort Collins, CO.
  • For federal employees, locality pay changes a GS-13 step 1 salary by +0.3% moving from Fort Collins, CO to Rockford, IL ($118,675 → $118,984), while prices change by −8.9%. Net effect of the transfer: +10.0% in real buying power.
Fort CollinsRockford
Price level (U.S. = 100):Under 9292–9898–102102–108Over 108
  • Fort Collins, CO: price level 101.1 (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

Fort Collins, CORockford, IL
Price level (U.S. = 100)2101.192.2
$100,000 is worth, in the other city2$91,126 in Rockford$109,738 in Fort Collins
Typical 1-bedroom rent3$1,537/mo$895/mo
Take-home on $100,00014,15,8$75,488$74,375
State income tax on $100,000 (estimate)8$3,692 (CO)$4,805 (IL)
Rent burden on $100,00024%14%
Median pay, all jobs4$55,310$47,120
Federal locality pay area7Denver-Aurora, COChicago-Naperville, IL-IN-WI

Rent areas: Fort Collins-Loveland, CO MSA and Rockford, IL MSA. Metro areas: Fort Collins-Loveland, CO and Rockford, IL.

What costs more or less

Fort Collins, CORockford, IL
Price level (U.S. = 100)Fort CollinsRockford
Housing (rent)120.670.1
Goods96.193.6
Utilities82.289.4
Other services99.899.6
Overall101.192.2
BEA Regional Price Parities2. Housing covers rents.

Moving with the same $100,000 salary

Fort Collins, CO → Rockford, IL

Same pay goes further

Buying power +9.7%; rent takes 14% of take-home; state tax +$1,114/yr.

99 Strong offer

Rockford, IL → Fort Collins, CO

Same pay buys less

Buying power −8.9%; rent takes 24% of take-home; state tax −$1,114/yr.

41 Weak offer

On the GS pay scale?

Fort Collins, CO is in the Denver-Aurora, CO pay area; Rockford, IL is in Chicago-Naperville, IL-IN-WI. The last column shows what a transfer from Fort Collins, CO to Rockford, IL at the same grade and step does to real buying power.

Grade5,2Fort Collins, CORockford, ILReal change, Fort Collins → Rockford
GS-9 step 1$68,819$68,999+10.0%
GS-11 step 1$83,265$83,482+10.0%
GS-12 step 1$99,800$100,059+10.0%
GS-13 step 1$118,675$118,984+10.0%
GS-14 step 1$140,239$140,604+10.0%

Pay for common jobs

Median annual pay4Fort Collins, CORockford, ILRockford pay in Fort Collins dollars
Elementary School Teachers, Except Special Education$62,930$64,200$70,452 (+12.0%)
Software Developers$133,990$107,640$118,122 (−11.8%)
Accountants and Auditors$89,340$75,260$82,589 (−7.6%)
Registered Nurses$97,600$80,930$88,811 (−9.0%)

"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.