Utah to Arizona

Distance from St. George to Surprise

Straight-line distance

243.7mi

St. George, UT and Surprise, AZ are 243.7 miles (392.2 km) apart in a straight line. From St. George, the shortest path starts out heading SSE (165°).

kilometers
392.2
nautical miles
211.8
heading from St. George
165° SSE
heading from Surprise
345° NNW
St. GeorgeSurprise

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

How far St. George is from Surprise

The great-circle distance between the Census internal points of St. George and Surprise is 243.7 miles, 392.2 km or 211.8 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 243.7 miles, practically the same at this range.

Measurements

Miles
243.7
Kilometers
392.2
Nautical miles
211.8
Bearing from St. George
164.6° SSE
Bearing arriving at Surprise
165.3°
Bearing from Surprise
345.3° NNW

Halfway between St. George and Surprise

The great-circle midpoint is at 35.375201, -113.002636 (35°22'30.72"N 113°00'9.49"W). The nearest incorporated place of 1,000 or more people is Williams, AZ, with 3,482 residents, 47.0 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.

Time zones and daylight

St. George uses America/Denver and Surprise uses America/Phoenix. In January Surprise is the same clock time, and in July 1 hour behind, because only one of them observes daylight saving time. On June 21, St. George gets 14 h 43 min of daylight and Surprise 14 h 24 min; on December 21, 9 h 37 min and 9 h 55 min. St. George is 3.41° farther north, so it has the longer summer days and the shorter winter ones.

Population compared

Surprise has 1.6 times the population of St. George. From July 2020 to July 2024, St. George changed by +10.7% and Surprise by +16.0%. The trip crosses from Utah into Arizona.

  1. 01St. George, UT106,288 (+10.7%)
  2. 02Surprise, AZ167,564 (+16.0%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is St. George from Surprise?

243.7 miles, 392.2 km or 211.8 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Surprise from St. George?

SSE. The great-circle path leaves St. George on a bearing of 164.6° and arrives at Surprise on 165.3°. The return trip starts on 345.3°.

What is halfway between St. George and Surprise?

The midpoint is at 35.375201, -113.002636. The nearest incorporated place of 1,000+ is Williams, AZ, 47.0 miles from it.

Is there a time difference between St. George and Surprise?

St. George uses America/Denver and Surprise uses America/Phoenix. In January Surprise is the same clock time, and in July 1 hour behind, because only one of them observes daylight saving time.

Which is bigger, St. George or Surprise?

Surprise, with 167,564 residents in July 2024 against 106,288 for St. George, 1.6 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.