City comparison
Decatur, IL is about 150 miles (225 km) from Lombard, IL in a straight line. By road, the drive is roughly 175 miles, or about 3 h 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 Decatur, IL to Lombard, IL takes about 18 min, covering roughly 150 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.
Decatur has a population of 70,975, vs 44,055 in Lombard — about 1.6× larger by population. By land area, Decatur covers about 44 sq mi vs 10 sq mi for Lombard.
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 | Decatur | Lombard | Difference |
|---|---|---|---|
| Median rent | $770/mo | $1,741/mo | 126.1% higher in Lombard |
| Median home value | $96,800 | $308,900 | 219.1% higher in Lombard |
| Median household income | $49,039 | $95,509 | 94.8% higher in Lombard |
| Groceries index | 93.9 | 106.3 | 13.2% higher in Lombard |
| Utilities index | 91.2 | 84.3 | 8.1% higher in Decatur |
| Transportation index | 99.3 | 100.2 | 0.8% higher in Lombard |
| Healthcare index | 99.5 | 100.4 | 0.8% higher in Lombard |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Decatur, you'd need $132,798 in Lombard to maintain your standard of living.
Climate, safety, and demographics side by side.
Decatur, IL is about 24.7% cheaper overall than Lombard, IL, based on our cost-of-living index. Housing costs are roughly 102% higher in Lombard than in Decatur. If you earn $80,000 in Decatur, you'd need about $106,238 in Lombard to keep the same standard of living.