City comparison
Decatur, IL is about 150 miles (225 km) from Oak Lawn, 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 Oak Lawn, IL takes about 17 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 57,665 in Oak Lawn — about 1.2× larger by population. By land area, Decatur covers about 44 sq mi vs 8.6 sq mi for Oak Lawn.
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 | Oak Lawn | Difference |
|---|---|---|---|
| Median rent | $770/mo | $1,285/mo | 66.9% higher in Oak Lawn |
| Median home value | $96,800 | $250,900 | 159.2% higher in Oak Lawn |
| Median household income | $49,039 | $77,221 | 57.5% higher in Oak Lawn |
| Groceries index | 93.9 | 106.3 | 13.2% higher in Oak Lawn |
| Utilities index | 91.2 | 84.3 | 8.1% higher in Decatur |
| Transportation index | 99.3 | 100.2 | 0.8% higher in Oak Lawn |
| Healthcare index | 99.5 | 100.4 | 0.8% higher in Oak Lawn |
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 $131,077 in Oak Lawn to maintain your standard of living.
Climate, safety, and demographics side by side.
Decatur, IL is about 23.7% cheaper overall than Oak Lawn, IL, based on our cost-of-living index. Housing costs are roughly 96% higher in Oak Lawn than in Decatur. If you earn $80,000 in Decatur, you'd need about $104,862 in Oak Lawn to keep the same standard of living.