Salary needed
A $50,000 salary in Arapahoe County, CO would need to be about $49,025 in Lake County, IL, or $975 less, to match the modeled cost ratio.
Arapahoe County, CO vs Lake County, IL: Cost of Living Difference
Is it cheaper?
Lake County, IL is cheaper than Arapahoe County, CO.
Moving to Lake County, IL is estimated to save $1,227 per year.
Cheaper County
Lake County, ILSave about $1,227 per year.Salary needed
$50,000 in Arapahoe County, CO is about $49,025 in Lake County, IL.
Biggest drivers
Transport increases by $882 per year. Housing saves $1,926 per year.
Housing: $1,926 lower in Lake County, IL
Taxes: $404 higher in Lake County, IL
Childcare: about the same in both counties
Healthcare: $169 lower in Lake County, IL
Food: $139 higher in Lake County, IL
Transport: $882 higher in Lake County, IL
Arapahoe County, CO→Lake County, IL
Equivalent salary in Lake County, IL
$49,025
-1.95% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in Arapahoe County, CO: $120,608
Median Income in Lake County, IL: $132,828
Living Index in Arapahoe County, CO 52.11%
Living Index in Lake County, IL 46.39%
This estimate matches your purchasing power (equivalent salary) when moving from Arapahoe County, CO to Lake County, IL.
* Living index is estimated as (estimated total cost / area median income) * 100. A living index above 100% means modeled costs exceed median income.
Cost of Living Breakdown by Category
Summary
Moving from Arapahoe County, CO to Lake County, IL is estimated to save $1,227 per year. A $50,000 salary in Arapahoe County, CO would have similar purchasing power to about $49,025 in Lake County, IL. The largest savings come from housing and other costs.
This is a -1.95% decrease in modeled annual costs. Housing is $1,926 per year lower (-9.75%); Other Costs is $555 per year lower (-7.37%).
Below we break down the annual categories behind the difference using Economic Policy Institute 2026 Family Budget data.
Why this comparison matters
These notes use the actual annual cost differences between Arapahoe County, CO and Lake County, IL, so the page highlights the budget tradeoffs behind the total.
Affordability vs median income
Modeled annual costs equal about 52.1% of median family income in Arapahoe County, CO and 46.4% in Lake County, IL. This matters because a cheaper county can still feel tight if typical local incomes are also lower.
Housing
Housing is $1,926 per year lower in Lake County, IL than in Arapahoe County, CO. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether Lake County, IL changes their baseline budget.
Food
Food is $139 per year higher in Lake County, IL than in Arapahoe County, CO. Food costs affect weekly cash flow, so even a smaller annual gap in Lake County, IL can show up quickly for households that cook most meals at home.
Transportation
Transportation is $882 per year higher in Lake County, IL than in Arapahoe County, CO. Transportation matters for commuters because driving distance, vehicle costs, and transit access can change how much of a salary is left after getting around Lake County, IL.
Healthcare
Healthcare is $169 per year lower in Lake County, IL than in Arapahoe County, CO. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if Lake County, IL changes provider networks or plan options.
Other necessities
Other necessities is $555 per year lower in Lake County, IL than in Arapahoe County, CO. Other necessities cover everyday basics, so changes in Lake County, IL help explain the non-housing costs that can quietly add up month after month.
Childcare
Childcare is about the same in Arapahoe County, CO and Lake County, IL, so this category is not a major driver of the modeled gap. Childcare is most important for households with children; in Lake County, IL, this line can swing the result even when housing or taxes look manageable.
Taxes
Taxes is $404 per year higher in Lake County, IL than in Arapahoe County, CO. Taxes affect take-home pay, so the gap in Lake County, IL matters even if the headline salary looks similar before deductions.
What changed the most?
The following cards show the annual category differences that most affect the move to Lake County, IL.
Biggest Cost
Largest annual cost increase when moving to Lake County, IL
Annual Increase:
$882 per year
TRANSPORT has the largest annual increase when moving to Lake County, IL.
Biggest Savings
Largest annual savings when moving to Lake County, IL
Annual Savings:
$1,926 per year
HOUSING has the largest annual savings when moving to Lake County, IL.
Breakdown of price percentages per category.
Numbers are average costs per section.
| Category | Difference | |
|---|---|---|
| Housing | -10% lower | |
| Food | 3% higher | |
| Transport | 7% higher | |
| Healthcare | -3% lower | |
| Other Costs | -7% lower | |
| Childcare | 0% higher | |
| Taxes | 3% higher |
In Lake County, IL, modeled annual costs are $61,624 compared with $62,851 in Arapahoe County, CO.
Overall, annual costs are lower in Lake County, IL. The category breakdown above shows where the move creates the most room in the budget.
In this case Lake County, IL and Arapahoe County, CO are both metropolitan locations.
Use our map to visually compare multiple counties at once.
