Illinois to Indiana

Distance from Aurora to South Bend

Straight-line distance

104.4mi

Aurora, IL and South Bend, IN are 104.4 miles (168.0 km) apart in a straight line. From Aurora, the shortest path starts out heading E (93°).

kilometers
168.0
nautical miles
90.7
heading from Aurora
93° E
heading from South Bend
274° W
AuroraSouth Bend

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

How far Aurora is from South Bend

The great-circle distance between the Census internal points of Aurora and South Bend is 104.4 miles, 168.0 km or 90.7 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 104.4 miles, practically the same at this range.

Measurements

Miles
104.4
Kilometers
168.0
Nautical miles
90.7
Bearing from Aurora
92.6° E
Bearing arriving at South Bend
94.0°
Bearing from South Bend
274.0° W

Halfway between Aurora and South Bend

The great-circle midpoint is at 41.724478, -87.278767 (41°43'28.12"N 87°16'43.56"W). The nearest incorporated place of 1,000 or more people is Ogden Dunes, IN, with 1,172 residents, 8.0 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.

Time zones and daylight

Aurora uses America/Chicago and South Bend uses America/Indiana/Indianapolis; South Bend is 1 hour ahead all year. On June 21, Aurora gets 15 h 13 min of daylight and South Bend 15 h 12 min; on December 21, 9 h 09 min and 9 h 09 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Aurora has 1.7 times the population of South Bend. From July 2020 to July 2024, Aurora changed by +0.2% and South Bend by +0.4%. The trip crosses from Illinois into Indiana.

  1. 01Aurora, IL180,710 (+0.2%)
  2. 02South Bend, IN103,713 (+0.4%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Aurora from South Bend?

104.4 miles, 168.0 km or 90.7 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is South Bend from Aurora?

E. The great-circle path leaves Aurora on a bearing of 92.6° and arrives at South Bend on 94.0°. The return trip starts on 274.0°.

What is halfway between Aurora and South Bend?

The midpoint is at 41.724478, -87.278767. The nearest incorporated place of 1,000+ is Ogden Dunes, IN, 8.0 miles from it.

Is there a time difference between Aurora and South Bend?

Aurora uses America/Chicago and South Bend uses America/Indiana/Indianapolis; South Bend is 1 hour ahead all year.

Which is bigger, Aurora or South Bend?

Aurora, with 180,710 residents in July 2024 against 103,713 for South Bend, 1.7 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.