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Crunching costs, sorting signals, rendering insights.
Crunching costs, sorting signals, rendering insights.
No second income to fall back on. Our model scored 5 cities in Illinois on solo-living metrics. Rockford leads at index 67 with rent of $1,151/mo (that's pre-tax, of course). Quietly competitive.
#1 Ranked: Rockford — cost index 67, rent $1,151/mo, income $53,328
Rockford is a clear outlier at index 67
Singles scoring: rent $1,151/mo (solo housing), cost index 67, population 146,120 — livability on one income
Data sourced from Census Bureau, Zillow, BLS, and Tax Foundation — current as of 2026
No second income to fall back on. Our model scored 5 cities in Illinois on solo-living metrics. Rockford leads at index 67 with rent of $1,151/mo (that's pre-tax, of course). Quietly competitive.
Single-income living means absorbing 100% of housing costs. Our model weights rent under $1,300 — and that's before you even look at taxes — (20pts), cost of living (15pts), and city population (10pts) — because a social scene matters when you're on your own. Rockford at $1,151/mo in a city of 146,120 hits the right balance. Joliet offers a larger city as a runner-up (your mileage may vary — literally).
The #1 spot goes to Rockford, and the breakdown explains why. Renters here pay $1,151/month — saving renters $8,928 per year compared to the national average. Meanwhile, Housing is the standout at index 67, making it one of the cheapest in the country for that category. The weak spot? Healthcare at 93. It lines up with what you'd expect. A 26% rent-to-income ratio keeps most households inside the safe zone. Below the radar, but not for long.
Real talk: If you only look at rent, it's perfect. And more often than not, zoom out and it's complicated. In Rockford, the healthcare index sits at 93 — not a dealbreaker, but worth knowing about.
Spoiler: the cheapest option isn't always the smartest option. And more often than not, rockford is a clear outlier at index 67 — and that's before you even look at taxes — . #1-ranked Rockford has a cost index 37 points lower than the top-5 average of 104. That's not a marginal lead — it's a category of its own. That's a meaningful edge in practice.
Bottom line: Rockford leads this ranking for clear, data-backed reasons — but the "best" city depends on your priorities. And generally speaking, click into any city below to see the full detail page with 12-month trend charts, profession-specific salary data, and a breakdown of all five cost categories. If you're seriously considering a move, use our salary calculator to model your specific income against these numbers. If you've been scrolling through listings in high-cost metros and feeling defeated, look at these numbers again. Seriously. The difference between renting here and renting in a major coastal city could literally fund a retirement account. That's not hyperbole — run the math yourself. A thousand dollars a month saved, compounded over a decade, is a down payment on a house. In this city, that math actually works.
#1-ranked Rockford has a cost index 37 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 67 (44 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 67, while Healthcare runs 93. With 146,120 residents, it balances mid-size city convenience with manageable costs.
150,489 residents · Illinois
No sugarcoating: What does daily life actually cost in Joliet? Start with the 21% rent-to-income ratio — that's the kind of margin that lets people build savings. On the category level, Housing (index 91) is where the real savings show up, while Healthcare (index 98) is the line item most likely to surprise newcomers. Income at $88,026 and homes at $255,981 round out a profile that ranks #2 for clear reasons.
2,664,452 residents · Illinois
Dive into Chicago's numbers: cost index 134 (23 points above national average), rent $2,292/month, income $75,134, and a home price of $312,457. The city's cost profile isn't flat — Healthcare is the cheapest category at 107, while Housing runs 134. That alone makes it worth considering. As a major city with 2,664,452 residents, amenities and job markets are robust. Below the radar, but not for long.
150,245 residents · Illinois
Real talk: Why Naperville ranks #4: the numbers tell a clear story. And generally speaking, at 126 on the cost index, residents spend roughly 15% more than the typical American. Rent sits at $2,157/month while the median household pulls in $150,937/year. The Healthcare category is particularly strong at 105, though Housing (126) lags behind. Home prices average $594,498 — $127,128 above the national median. The math checks out.
113,310 residents · Illinois
The #5 spot goes to Elgin, and the breakdown explains why. And roughly speaking, that's about what we'd expect given the state context. Renters here pay $1,736/month — saving renters $1,908 per year compared to the national average. Meanwhile, Healthcare is the standout at index 100, keeping costs manageable. The weak spot? Housing at 101. 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 67 and median income of $53,328.
Rockford scores highest for singles 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 67 and rent of $1,151/mo, while Elgin (ranked #5) has a cost index of 101 and rent of $1,736/mo — a 34-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.