City comparison
Knoxville, TN is about 400 miles (650 km) from St. Charles, MO in a straight line. By road, the drive is roughly 500 miles, or about 8 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 Knoxville, TN to St. Charles, MO takes about 49 min, covering roughly 400 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.
Knoxville has a population of 191,857, vs 70,687 in St. Charles — about 2.7× larger by population. By land area, Knoxville covers about 99 sq mi vs 25 sq mi for St. Charles.
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 | Knoxville | St. Charles | Difference |
|---|---|---|---|
| Median rent | $1,043/mo | $1,115/mo | 6.9% higher in St. Charles |
| Median home value | $184,200 | $259,700 | 41.0% higher in St. Charles |
| Median household income | $48,309 | $83,589 | 73.0% higher in St. Charles |
| Groceries index | 96.5 | 99.7 | 3.3% higher in St. Charles |
| Utilities index | 73.9 | 71.9 | 2.9% higher in Knoxville |
| Transportation index | 95.6 | 98.5 | 3.0% higher in St. Charles |
| Healthcare index | 95.1 | 98.7 | 3.8% higher in St. Charles |
How much you'd need to earn in the other city to keep the same standard of living.
If you earn $100,000 in Knoxville, you'd need $100,125 in St. Charles to maintain your standard of living.
Climate, safety, and demographics side by side.
Knoxville and St. Charles have nearly identical overall cost-of-living indices. Housing costs are roughly 4% higher in Knoxville than in St. Charles. If you earn $80,000 in Knoxville, you'd need about $80,100 in St. Charles to keep the same standard of living.