Illinois to Missouri

Distance from Springfield to St. Louis

Straight-line distance

86.0mi

Springfield, IL and St. Louis, MO are 86.0 miles (138.5 km) apart in a straight line. From Springfield, the shortest path starts out heading SSW (202°).

kilometers
138.5
nautical miles
74.8
heading from Springfield
202° SSW
heading from St. Louis
22° NNE
SpringfieldSt. Louis

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

How far Springfield is from St. Louis

The great-circle distance between the Census internal points of Springfield and St. Louis is 86.0 miles, 138.5 km or 74.8 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 86.0 miles, practically the same at this range.

Measurements

Miles
86.0
Kilometers
138.5
Nautical miles
74.8
Bearing from Springfield
202.1° SSW
Bearing arriving at St. Louis
201.7°
Bearing from St. Louis
21.7° NNE

Halfway between Springfield and St. Louis

The great-circle midpoint is at 39.213785, -89.947068 (39°12'49.62"N 89°56'49.45"W). The nearest incorporated place of 1,000 or more people is Carlinville, IL, with 5,582 residents, 5.8 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, Springfield gets 15 h 00 min of daylight and St. Louis 14 h 52 min; on December 21, 9 h 21 min and 9 h 28 min. Springfield is 1.16° farther north, so it has the longer summer days and the shorter winter ones.

Population compared

St. Louis has 2.5 times the population of Springfield. From July 2020 to July 2024, Springfield changed by -1.2% and St. Louis by -6.9%. The trip crosses from Illinois into Missouri.

  1. 01Springfield, IL112,949 (-1.2%)
  2. 02St. Louis, MO279,695 (-6.9%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Springfield from St. Louis?

86.0 miles, 138.5 km or 74.8 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is St. Louis from Springfield?

SSW. The great-circle path leaves Springfield on a bearing of 202.1° and arrives at St. Louis on 201.7°. The return trip starts on 21.7°.

What is halfway between Springfield and St. Louis?

The midpoint is at 39.213785, -89.947068. The nearest incorporated place of 1,000+ is Carlinville, IL, 5.8 miles from it.

Is there a time difference between Springfield and St. Louis?

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

Which is bigger, Springfield or St. Louis?

St. Louis, with 279,695 residents in July 2024 against 112,949 for Springfield, 2.5 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.