City comparison

Davenport, IA vs Modesto, CA

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

Key findings

  • Prices in Modesto, CA are 16.9% higher than in Davenport, IA. Someone earning $100,000 in Davenport, IA would need about $116,900 in Modesto, CA to live the same way.
  • Rent is the bigger story: a typical 1-bedroom costs $1,356 a month in Modesto, CA versus $928 in Davenport, IA. On $100,000, that's 22% of take-home pay in Modesto, CA and 15% in Davenport, IA.
  • On $100,000, estimated state income tax is about $1,922 a year higher in Modesto, CA than in Davenport, IA.
  • For federal employees, locality pay changes a GS-13 step 1 salary by +23.0% moving from Davenport, IA to Modesto, CA ($108,137 → $133,060), while prices change by +16.9%. Net effect of the transfer: +5.3% in real buying power.
DavenportModesto
Price level (U.S. = 100):Under 9292–9898–102102–108Over 108
  • Davenport, IA: price level 89.1 (much cheaper)
  • Modesto, CA: price level 104.1 (pricier)

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

Side by side

Davenport, IAModesto, CA
Price level (U.S. = 100)289.1104.1
$100,000 is worth, in the other city2$116,872 in Modesto$85,564 in Davenport
Typical 1-bedroom rent3$928/mo$1,356/mo
Take-home on $100,00014,15,8$76,032$74,110
State income tax on $100,000 (estimate)8$3,148 (IA)$5,070 (CA)
Rent burden on $100,00015%22%
Median pay, all jobs4$48,550$50,610
Federal locality pay area7Davenport-Moline, IA-ILSan Jose-San Francisco-Oakland, CA

Rent areas: Davenport-Moline-Rock Island, IA-IL MSA and Modesto, CA MSA. Metro areas: Davenport-Moline-Rock Island, IA-IL and Modesto, CA.

What costs more or less

Davenport, IAModesto, CA
Price level (U.S. = 100)DavenportModesto
Housing (rent)68.3108.5
Goods94.2105.2
Utilities89.9152.3
Other services93.5100.3
Overall89.1104.1
BEA Regional Price Parities2. Housing covers rents.

Moving with the same $100,000 salary

Davenport, IA → Modesto, CA

Same pay buys less

Buying power −14.4%; rent takes 22% of take-home; state tax +$1,922/yr.

38 Weak offer

Modesto, CA → Davenport, IA

Same pay goes further

Buying power +16.9%; rent takes 15% of take-home; state tax −$1,922/yr.

100 Strong offer

Federal employees: GS pay

Davenport, IA is in the Davenport-Moline, IA-IL pay area; Modesto, CA is in San Jose-San Francisco-Oakland, CA. The last column shows what a transfer from Davenport, IA to Modesto, CA at the same grade and step does to real buying power.

Grade5,2Davenport, IAModesto, CAReal change, Davenport → Modesto
GS-9 step 1$62,708$77,161+5.3%
GS-11 step 1$75,871$93,358+5.3%
GS-12 step 1$90,937$111,896+5.3%
GS-13 step 1$108,137$133,060+5.3%
GS-14 step 1$127,786$157,236+5.3%

Pay for common jobs

Median annual pay4Davenport, IAModesto, CAModesto pay in Davenport dollars
Information Security Analysts$108,280not published—
Software Developers$115,780$119,770$102,480 (−11.5%)
Accountants and Auditors$77,600$83,560$71,497 (−7.9%)
Registered Nurses$77,150$132,590$113,449 (+47.1%)

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

Check your own offer

Loading calculator…

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.