City comparison
Decatur, IL is about 150 miles (250 km) from Elmhurst, IL in a straight line. By road, the drive is roughly 200 miles, or about 3 h 15 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 Decatur, IL to Elmhurst, 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 45,648 in Elmhurst — about 1.6× larger by population. By land area, Decatur covers about 44 sq mi vs 10 sq mi for Elmhurst.
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 | Elmhurst | Difference |
|---|---|---|---|
| Median rent | $770/mo | $1,843/mo | 139.4% higher in Elmhurst |
| Median home value | $96,800 | $516,900 | 434.0% higher in Elmhurst |
| Median household income | $49,039 | $143,492 | 192.6% higher in Elmhurst |
| Groceries index | 93.9 | 106.3 | 13.2% higher in Elmhurst |
| Utilities index | 91.2 | 84.3 | 8.1% higher in Decatur |
| Transportation index | 99.3 | 100.2 | 0.8% higher in Elmhurst |
| Healthcare index | 99.5 | 100.4 | 0.8% higher in Elmhurst |
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 $133,174 in Elmhurst to maintain your standard of living.
Climate, safety, and demographics side by side.
Decatur, IL is about 24.9% cheaper overall than Elmhurst, IL, based on our cost-of-living index. Housing costs are roughly 103% higher in Elmhurst than in Decatur. If you earn $80,000 in Decatur, you'd need about $106,539 in Elmhurst to keep the same standard of living.