Boston vs Rockford
Cost of Living Comparison · 2026 Data
Boston
Rockford
💡 The Verdict
Rockford is 51% cheaper than Boston overall. A $75,000 salary in Boston is equivalent to $37,037 in Rockford.
Category-by-Category Breakdown
Index values for Boston (left) vs Rockford (right). National average = 100.
Detailed Price Comparison
Estimated item-level prices in Boston versus Rockford. Differences shown from Boston perspective.
| Item | Boston | Rockford | Difference |
|---|---|---|---|
| 1-Bed Rent | $2,180/mo | $870/mo | +$1310.00 |
| 2-Bed Rent | $2,800/mo | $1,230/mo | +$1570.00 |
| 3-Bed Rent | $3,740/mo | $1,520/mo | +$2220.00 |
| Bread (loaf) | $3.28 | $2.56 | +$0.72 |
| Milk (gallon) | $3.92 | $3.40 | +$0.52 |
| Eggs (dozen) | $3.68 | $3.06 | +$0.62 |
| Coffee (latte) | $6.03 | $4.75 | +$1.28 |
| Gas (gallon) | $3.50 | $3.00 | +$0.50 |
| Restaurant Meal | $20.49 | $12.96 | +$7.53 |
💰 Salary Equivalence
A $75,000 salary in Boston has the same purchasing power as $37,037 in Rockford.
Conversely, $75,000 in Rockford equals $151,875 in Boston.
💼 Take-Home Pay Comparison
Estimated annual take-home pay on a $75,000 salary after federal, FICA, and state income taxes.
Both states have similar effective tax rates on this salary level. Massachusetts details → · Illinois details →
Reading These Numbers: Boston (162) vs Rockford (80)
Boston at 162 is 62% above the US average, while Rockford at 80 is 20% below average. There is a meaningful cost gap between these two cities that affects day-to-day budgeting.
In Boston, the composite index of 162 reflects a weighted calculation where housing carries the most influence at 242, followed by groceries (108), utilities (126), transportation (107), and healthcare (118). Housing is the primary cost driver here.
For renters: With median rents of $2,800/mo in Boston and $1,230/mo in Rockford, the annual rent difference is approximately $18,840.0. Over a 5-year period, that compounds to $94,200.0 in savings by choosing the more affordable city.
For homebuyers: The $310,000.0 difference in median home prices between Boston and Rockford translates to meaningful differences in mortgage payments at current rates. Factor this into your budget alongside property taxes and insurance, which also vary by location.
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Making Your Decision: Boston vs Rockford
Choosing between Boston and Rockford involves more than just comparing index numbers. Consider how each category aligns with your personal spending patterns. If you work from home, transportation costs matter less than housing and utilities. If you eat out frequently, the groceries index may understate your actual food spending — look at the restaurant meal prices in the detailed comparison table above instead.
Long-term affordability in Boston versus Rockford depends partly on cost trajectory. Cities experiencing rapid population growth tend to see costs rise faster than established metros where supply has caught up with demand. While our index captures current conditions, consider whether the city trending cheaper today might converge toward average over the next five to ten years as more people discover it. Our quarterly updates help track these shifts over time.