Cost of Living: Illinois vs New Jersey
Illinois is cheaper for a single adult by about $864/month, mainly driven by rent.
Comparison at a glance
- Monthly difference$864/moIllinois saves vs New Jersey
- Housing difference$500/moIllinois cheaper on 1BR rent
- Grocery difference$80/moIllinois has a lighter basket
- Equivalent salary≈ $95,500$75,000 in Illinois → New Jersey
- Cheaper overallIllinois~27% lower single-adult budget
- Affordability winnerIllinoisLower combined rent + essentials
Side-by-side single-adult budget
The big differences between Illinois and New Jersey come down to rent and tax. Groceries, transport, and utilities are usually within 10–15%; housing can swing the total by hundreds of dollars per month.
Cost of Living Verdict
Six quick takes on where Illinois and New Jersey actually pull ahead.
- Cheaper overallIllinois
Illinois runs about $864/mo lower for a single-adult budget (~27% cheaper).
- Better housing affordabilityIllinois
Average 1BR rent is $1,400 vs $1,900.
- Better for familiesIllinois
Illinois keeps the family-of-four monthly total lower thanks to cheaper 2BR rent and groceries.
- Better for retireesIllinois
Illinois combines lower rent and healthcare with a softer income-tax burden — easier on a fixed pension.
- Better for remote workersIllinois
Illinois has a lower cost index (94 vs 113), so an out-of-state salary stretches further.
- Better purchasing powerTie
Median household income relative to local prices is similar in both regions.
What this difference means in practice
The headline gap broken into the four buckets that actually move household budgets.
- Housing impact
Illinois is roughly 36% cheaper on housing (~$500/mo less than New Jersey) — compounds quickly across a year.
- Daily spending
Illinois is roughly 20% cheaper on groceries (~$80/mo less than New Jersey) — compounds quickly across a year.
- Transport & utilities
Illinois is roughly 20% cheaper on transport + utilities (~$128/mo less than New Jersey) — compounds quickly across a year.
- Lifestyle
Illinois is roughly 20% cheaper on lifestyle (dining + extras) (~$95/mo less than New Jersey) — compounds quickly across a year.
Purchasing power snapshot
Which region stretches a dollar further, category by category.
- Housingstrong advantageIllinois
Illinois is the cheaper place to rent or own.
- Groceriesmoderate advantageIllinois
Weekly grocery basket is lighter in Illinois.
- Utilitiesmoderate advantageIllinois
Lower monthly utility load in Illinois.
- Transportmoderate advantageIllinois
Cheaper commuting overall in Illinois.
- Healthcaremoderate advantageIllinois
Lower out-of-pocket healthcare in Illinois.
- Lifestylemoderate advantageIllinois
Dining, entertainment, and extras are cheaper in Illinois.
Who benefits more?
The same comparison reads very differently depending on the household.
- FamiliesIllinois
Lower 2BR rent and grocery load make Illinois the easier family budget.
- SinglesIllinois
Cheaper 1BR rent and entertainment costs tilt to Illinois.
- RetireesIllinois
Illinois eases housing and healthcare — important on a fixed income.
- Remote workersIllinois
An out-of-state salary stretches further in Illinois thanks to a lower cost index.
- StudentsIllinois
Lower rent and commuting costs make Illinois easier on a tight student budget.
- High earnersNew Jersey
New Jersey blends a more efficient tax load with stronger local incomes.
Equivalent lifestyle salary
How much you'd need in New Jersey to match the lifestyle a given salary buys in Illinois.
needed in New Jersey for the same lifestyle.
needed in New Jersey for the same lifestyle.
needed in New Jersey for the same lifestyle.
Housing affordability
Housing is the dominant gap: Illinois runs roughly 36% cheaper on 1BR rent and 35% cheaper on 2BR — enough to reshape household budgets.
Ownership affordability follows the same shape: lower rents typically signal more attainable mortgage payments at similar incomes.
Category-by-category
| Category | Illinois | New Jersey | Lower |
|---|---|---|---|
| Housing (1BR rent) | $1,400 | $1,900 | Illinois |
| Groceries | $395 | $475 | Illinois |
| Utilities | $183 | $220 | Illinois |
| Transportation | $451 | $542 | Illinois |
| Healthcare | $301 | $362 | Illinois |
| Top income tax | 0.0% | 0.1% | Tied |
| Lifestyle (dining + extras) | $470 | $565 | Illinois |
Comparison FAQ
- Is Illinois more expensive than New Jersey?
- New Jersey is roughly 27% more expensive than Illinois for a single-adult monthly budget — about $864 more per month.
- How much salary do I need to move from Illinois to New Jersey?
- If $100,000 supports your lifestyle in Illinois, you'd need roughly $127,000 in New Jersey to maintain the same purchasing power.
- Which region offers better affordability?
- Illinois comes out lower on the combined single-adult budget — about $864/mo cheaper than New Jersey.
- Is housing significantly cheaper in one of them?
- Housing is the dominant gap: Illinois runs roughly 36% cheaper on 1BR rent and 35% cheaper on 2BR — enough to reshape household budgets.
- Can a remote worker benefit from moving?
- Yes — a remote salary anchored to New Jersey rates stretches further in Illinois, where local prices and taxes are lower.
- What income is considered comfortable in New Jersey?
- Roughly $78,000/yr gross typically supports a comfortable single-adult lifestyle in New Jersey, leaving room for savings on top of monthly costs.
Related cost-of-living comparisons
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- New Jersey vs New York cost of living
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These estimates are approximate and may vary by city, taxes, rent, family size, and personal spending. Use them as a starting point, not a substitute for personalised financial or tax advice.