Illinois

Distance from Aurora to Chicago

Straight-line distance

31.6mi

Aurora, IL and Chicago, IL are 31.6 miles (50.8 km) apart in a straight line. From Aurora, the shortest path starts out heading E (81°).

kilometers
50.8
nautical miles
27.4
heading from Aurora
81° E
heading from Chicago
261° W
AuroraChicago

Orange line: great-circle path · ring: midpoint · thin lines: county borders

How far Aurora is from Chicago

The great-circle distance between the Census internal points of Aurora and Chicago is 31.6 miles, 50.8 km or 27.4 nautical miles. That is the shortest path over the Earth's surface, computed with the haversine formula on a sphere with the mean Earth radius, 6,371.0 km. A course held on one compass bearing (a rhumb line) would be 31.6 miles, practically the same at this range.

Measurements

Miles
31.6
Kilometers
50.8
Nautical miles
27.4
Bearing from Aurora
80.5° E
Bearing arriving at Chicago
80.9°
Bearing from Chicago
260.9° W

Halfway between Aurora and Chicago

The great-circle midpoint is at 41.800647, -87.987674 (41°48'2.33"N 87°59'15.62"W). The nearest incorporated place of 1,000 or more people is Westmont, IL, with 24,308 residents, 0.9 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.

Time zones and daylight

Both use America/Chicago, so there is no time difference. On June 21, Aurora gets 15 h 13 min of daylight and Chicago 15 h 13 min; on December 21, 9 h 09 min and 9 h 08 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Chicago has 15.1 times the population of Aurora. From July 2020 to July 2024, Aurora changed by +0.2% and Chicago by -0.9%. Both are in Illinois.

  1. 01Aurora, IL180,710 (+0.2%)
  2. 02Chicago, IL2,721,308 (-0.9%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Aurora from Chicago?

31.6 miles, 50.8 km or 27.4 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Chicago from Aurora?

E. The great-circle path leaves Aurora on a bearing of 80.5° and arrives at Chicago on 80.9°. The return trip starts on 260.9°.

What is halfway between Aurora and Chicago?

The midpoint is at 41.800647, -87.987674. The nearest incorporated place of 1,000+ is Westmont, IL, 0.9 miles from it.

Is there a time difference between Aurora and Chicago?

Both use America/Chicago, so there is no time difference.

Which is bigger, Aurora or Chicago?

Chicago, with 2,721,308 residents in July 2024 against 180,710 for Aurora, 15.1 times as many.

Sources and data as of

Data as of: Census 2024 Gazetteer internal points and Vintage 2024 estimates; time zones from Open-Meteo.

  1. 01Census 2024 Gazetteer, places
  2. 02Census Vintage 2024 subcounty population estimates
  3. 03SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
  4. 04IANA time zone database (clock times and daylight saving rules)

How every number is computed: methodology. Spotted a wrong figure? Report an error.