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Crunching costs, sorting signals, rendering insights.
Crunching costs, sorting signals, rendering insights.
The nomad equation: maximize runway between payments. We scored 5 cities across Illinois for cost, utilities, and rent. Rockford (index 86, rent $1,151/mo) is the top pick for 2026.
146,120 residents · Illinois
Here's Rockford by the numbers — and there's a lot to like (and a little to watch). Cost index: 86. Rent: $1,151/month. Income: $53,328/year. Home price: $172,610. Population: 146,120. The strongest category is Housing at 66; the most expensive is Healthcare at 89. Translate that rent to annual numbers, and residents are saving renters $8,928 per year vs. the national median. On a fixed income, this is the metric that matters most.
150,489 residents · Illinois
A closer look at Joliet: the cost index of 97 — which, honestly, is lower than you'd expect here — breaks down to a Utilities index of 89 (strongest category) and a Healthcare index of 100 (weakest). Median rent is $1,559/month — 18% below the national median — while household income sits at $88,026, meaning locals spend about 21% of income on rent. That's a healthy margin by any standard.
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). 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.
113,310 residents · Illinois
Why Elgin ranks #4: the numbers tell a clear story. At 103 on the cost index, residents save roughly 9% less than the typical American. Rent sits at $1,736/month while the median household pulls in $88,316/year. The Utilities category is particularly strong at 94, though Healthcare (106) lags behind. Home prices average $323,259 — $144,111 below the national median.
150,245 residents · Illinois
Dive into Naperville's numbers: cost index 122 (10 points above national average), rent $2,157/month, income $150,937, and a home price of $594,498. The city's cost profile isn't flat — Utilities is the cheapest category at 112, while Housing runs 154. It lines up with what you'd expect. With 150,245 residents, it balances mid-size city convenience with manageable costs.
#1 Ranked: Rockford — cost index 86, rent $1,151/mo, income $53,328
Rockford is a clear outlier at index 86
Digital-nomad scoring: cost index 86, utilities 79, rent $1,151/mo — minimum monthly burn rate
Data sourced from Census Bureau, Zillow, BLS, and Tax Foundation — current as of 2026
The nomad equation: maximize runway between payments. We scored 5 cities across Illinois for cost, utilities, and rent. Rockford (index 86, rent $1,151/mo) is the top pick for 2026.
Rockford earns its position at #1 through a combination that's hard to replicate. The 86 cost index sits 26 points below the national baseline, and the $53,328 median income means purchasing power here is amplified by the low cost base. Homes list at $172,610 — $294,760 below the national median — a genuine ownership opportunity. On the cost side, Housing leads the way at 66, while Healthcare trails at 89.
Bottom line: Rockford leads this ranking for clear, data-backed reasons — but the "best" city depends on your priorities. 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.
#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 ranges from $1,151/mo in Rockford to $2,157/mo in Naperville — a monthly difference of $1,006, or $12,072 per year.
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.
Rockford ranks #1 in Illinois for this analysis with a cost index of 86 and median income of $53,328.
Rockford scores highest for digital nomads 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 Naperville (ranked #5) has a cost index of 122 and rent of $2,157/mo — a 36-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.