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Crunching costs, sorting signals, rendering insights.
Crunching costs, sorting signals, rendering insights.
Veterans' benefits — pension, VA disability, GI Bill — stretch farther in some cities. We ranked 5 cities in Illinois on cost, state tax burden, and healthcare. Rockford leads with index 86 and 4.95% state tax.
#1 Ranked: Rockford — cost index 86, rent $1,151/mo, income $53,328
Rockford is a clear outlier at index 86
Veteran scoring: cost index 86, state tax 4.95%, healthcare index 89 — preserving earned benefits
Data sourced from Census Bureau, Zillow, BLS, and Tax Foundation — current as of 2026
Veterans' benefits — pension, VA disability, GI Bill — stretch farther in some cities. We ranked 5 cities in Illinois on cost, state tax burden, and healthcare. Rockford leads with index 86 and 4.95% state tax.
What does daily life actually cost in Rockford? Start with the 26% rent-to-income ratio — tight but manageable for most households. On the category level, Housing (index 66) is where the real savings show up, while Healthcare (index 89) is the line item most likely to surprise newcomers. Income at $53,328 and homes at $172,610 round out a profile that ranks #1 for clear reasons. Solidly above average.
With that foundation in place: Illinois — Chicago's premium versus downstate bargains. The 5 cities we track here average a cost index of 104 and median income of $91,148. It's a clear buyer's market compared to national norms. The typical rent runs $1,779/month, which is $116 less than the national median.
If you're ready to act on this, three things to do next: 1) Click into the city pages for the top 3 and check rent trends — direction matters more than the snapshot. 2) Run your income through the salary calculator for a personalized cost comparison. 3) Compare your top two picks head-to-head on our comparison page. The data is here; the decision is yours.
#1-ranked Rockford has a cost index 18 points lower than the top-5 average of 104. That's not a marginal lead — it's a category of its own.
Rent in #1-ranked Rockford has increased from $1,087 to $1,151/mo over the past 12 months — a 6% increase. Rising costs may erode its top ranking over time.
146,120 residents · Illinois
Dive into Rockford's numbers: cost index 86 (26 points below national average), rent $1,151/month, income $53,328, and a home price of $172,610. The city's cost profile isn't flat — Housing is the cheapest category at 66, while Healthcare runs 89. With 146,120 residents, it balances mid-size city convenience with manageable costs.
150,489 residents · Illinois
Here's Joliet by the numbers — and there's a lot to like (and a little to watch). Cost index: 97. Rent: $1,559/month. Income: $88,026/year. Home price: $255,981. Population: 150,489. The strongest category is Utilities at 89; the most expensive is Healthcare at 100. Translate that rent to annual numbers, and residents are saving renters $4,032 per year vs. the national median. This is where the math gets real for actual people.
2,664,452 residents · Illinois
A closer look at Chicago: the cost index of 111 breaks down to a Utilities index of 102 (strongest category) and a Housing index of 127 (weakest). And in most cases, median rent is $2,292/month — 21% above the national median — while household income sits at $75,134, meaning locals spend about 37% of income on rent. That exceeds the recommended 30% threshold — affordability here depends on earning above the median.
150,245 residents · Illinois
Naperville earns its position at #4 through a combination that's hard to replicate. The 122 cost index sits 10 points above the national baseline, and the $150,937 median income means purchasing power here is partially offset by higher costs. Homes list at $594,498 — $127,128 above the national median, reflecting the local market dynamics. On the cost side, Utilities leads the way at 112, while Housing trails at 154.
113,310 residents · Illinois
The #5 spot goes to Elgin, and the breakdown explains why. And more often than not, renters here pay $1,736/month — saving renters $1,908 per year compared to the national average. Meanwhile, Utilities is the standout at index 94, keeping costs manageable. The weak spot? Healthcare at 106. At a 24% rent-to-income ratio, there's genuine breathing room in the average household budget.
Rockford ranks #1 in Illinois for this analysis with a cost index of 86 and median income of $53,328.
Rockford scores highest for military veterans due to its below-average cost of living, median rent of $1,151/mo, and competitive median income of $53,328.
Our cost of living index uses real Zillow rent data as the foundation, indexed to 100 (national median). Sub-categories (housing, food, transport, utilities, healthcare) are derived from the overall index with regional adjustments. Data is updated monthly.
Rockford (ranked #1) has a cost index of 86 and rent of $1,151/mo, while Elgin (ranked #5) has a cost index of 103 and rent of $1,736/mo — a 17-point difference in cost of living.
City data is refreshed monthly from Census Bureau population estimates, Zillow rent and home price indices, BLS salary data, and Tax Foundation tax rates. Last updated: 2026.
The median 1-bedroom rent in Rockford is $1,151/month as of 2026, based on Zillow's Observed Rent Index. This is $744 below the national median of $1,895/month.
The median home price in Rockford is $172,610, which is 3.2× the local median income. That's within the standard 3.5× affordability rule for most local earners. The national median home price is $467,370.
Illinois has a 4.95% state income tax rate. Combined state and local sales tax averages 8.83%, and the effective property tax rate is 1.73%.
This ranking was generated using data current as of early 2026. Population and income data comes from the Census Bureau's American Community Survey (5-year estimates). Rent and home price data is from Zillow's monthly releases. Tax rates are from the Tax Foundation's 2025 edition. Rankings are refreshed monthly.