California

Distance from Santa Rosa to Vacaville

Straight-line distance

40.4mi

Santa Rosa, CA and Vacaville, CA are 40.4 miles (65.0 km) apart in a straight line. From Santa Rosa, the shortest path starts out heading E (98°).

kilometers
65.0
nautical miles
35.1
heading from Santa Rosa
98° E
heading from Vacaville
279° W
Santa RosaVacaville

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

How far Santa Rosa is from Vacaville

The great-circle distance between the Census internal points of Santa Rosa and Vacaville is 40.4 miles, 65.0 km or 35.1 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 40.4 miles, practically the same at this range.

Measurements

Miles
40.4
Kilometers
65.0
Nautical miles
35.1
Bearing from Santa Rosa
98.3° E
Bearing arriving at Vacaville
98.8°
Bearing from Vacaville
278.8° W

Halfway between Santa Rosa and Vacaville

The great-circle midpoint is at 38.402778, -122.337178 (38°24'10.00"N 122°20'13.84"W). The nearest incorporated place of 1,000 or more people is Yountville, CA, with 3,280 residents, 1.7 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/Los_Angeles, so there is no time difference. On June 21, Santa Rosa gets 14 h 51 min of daylight and Vacaville 14 h 51 min; on December 21, 9 h 29 min and 9 h 29 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Santa Rosa has 1.7 times the population of Vacaville. From July 2020 to July 2024, Santa Rosa changed by -0.3% and Vacaville by +1.8%. Both are in California.

  1. 01Santa Rosa, CA177,524 (-0.3%)
  2. 02Vacaville, CA103,994 (+1.8%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Santa Rosa from Vacaville?

40.4 miles, 65.0 km or 35.1 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Vacaville from Santa Rosa?

E. The great-circle path leaves Santa Rosa on a bearing of 98.3° and arrives at Vacaville on 98.8°. The return trip starts on 278.8°.

What is halfway between Santa Rosa and Vacaville?

The midpoint is at 38.402778, -122.337178. The nearest incorporated place of 1,000+ is Yountville, CA, 1.7 miles from it.

Is there a time difference between Santa Rosa and Vacaville?

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

Which is bigger, Santa Rosa or Vacaville?

Santa Rosa, with 177,524 residents in July 2024 against 103,994 for Vacaville, 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.