Iowa to Illinois

Distance from Davenport to Rockford

Straight-line distance

92.9mi

Davenport, IA and Rockford, IL are 92.9 miles (149.5 km) apart in a straight line. From Davenport, the shortest path starts out heading ENE (58°).

kilometers
149.5
nautical miles
80.7
heading from Davenport
58° ENE
heading from Rockford
239° WSW
DavenportRockford

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

How far Davenport is from Rockford

The great-circle distance between the Census internal points of Davenport and Rockford is 92.9 miles, 149.5 km or 80.7 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 92.9 miles, practically the same at this range.

Measurements

Miles
92.9
Kilometers
149.5
Nautical miles
80.7
Bearing from Davenport
58.0° ENE
Bearing arriving at Rockford
59.0°
Bearing from Rockford
239.0° WSW

Halfway between Davenport and Rockford

The great-circle midpoint is at 41.910623, -89.837938 (41°54'38.24"N 89°50'16.58"W). The nearest incorporated place of 1,000 or more people is Morrison, IL, with 3,988 residents, 9.6 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, Davenport gets 15 h 12 min of daylight and Rockford 15 h 16 min; on December 21, 9 h 10 min and 9 h 05 min. Rockford is 0.70° farther north, so it has the longer summer days and the shorter winter ones.

Population compared

Rockford has 1.5 times the population of Davenport. From July 2020 to July 2024, Davenport changed by -0.7% and Rockford by -0.8%. The trip crosses from Iowa into Illinois.

  1. 01Davenport, IA100,938 (-0.7%)
  2. 02Rockford, IL147,486 (-0.8%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Davenport from Rockford?

92.9 miles, 149.5 km or 80.7 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Rockford from Davenport?

ENE. The great-circle path leaves Davenport on a bearing of 58.0° and arrives at Rockford on 59.0°. The return trip starts on 239.0°.

What is halfway between Davenport and Rockford?

The midpoint is at 41.910623, -89.837938. The nearest incorporated place of 1,000+ is Morrison, IL, 9.6 miles from it.

Is there a time difference between Davenport and Rockford?

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

Which is bigger, Davenport or Rockford?

Rockford, with 147,486 residents in July 2024 against 100,938 for Davenport, 1.5 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.