City comparison
Rockford, IL is about 175 miles (275 km) from Springfield, IL in a straight line. By road, the drive is roughly 225 miles, or about 3 h 30 min behind the wheel at highway speeds.
Driving distance is a rough estimate (great-circle × 1.25); driving time assumes a 60 mph blended average. Real trips run 10–20% longer with stops.
A direct flight from Rockford, IL to Springfield, IL takes about 21 min, covering roughly 175 miles in a straight line. Connecting itineraries with a layover typically add 1–3 hours.
Block-to-block estimate at ~500 mph cruise, including taxi, climb, and descent — what an airline would publish, not pure airborne time.
Rockford has a population of 148,173, vs 114,214 in Springfield — about 1.3× larger by population. By land area, Rockford covers about 65 sq mi vs 61 sq mi for Springfield.
Population from US Census ACS. Land area from the Census Gazetteer (city proper, excluding inland water).
Cost indices by category, with the US city average (100) marked.
Index: 100 = US city average. Lower is more affordable.
Side-by-side costs, salaries, and sub-category indices.
| Metric | Rockford | Springfield | Difference |
|---|---|---|---|
| Median rent | $906/mo | $913/mo | 0.8% higher in Springfield |
| Median home value | $114,100 | $147,700 | 29.4% higher in Springfield |
| Median household income | $50,744 | $62,419 | 23.0% higher in Springfield |
| Groceries index | 93.9 | 93.9 | ≈ equal |
| Utilities index | 89.6 | 90.5 | 1.0% higher in Springfield |
| Transportation index | 99.3 | 99.3 | ≈ equal |
| Healthcare index | 99.5 | 99.5 | ≈ equal |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Rockford, you'd need $100,821 in Springfield to maintain your standard of living.
Climate, safety, and demographics side by side.
Rockford, IL is about 0.8% cheaper overall than Springfield, IL, based on our cost-of-living index. If you earn $80,000 in Rockford, you'd need about $80,657 in Springfield to keep the same standard of living.