Idaho to Washington
Distance from Nampa to Spokane Valley
Straight-line distance
283.6mi
Nampa, ID and Spokane Valley, WA are 283.6 miles (456.5 km) apart in a straight line. From Nampa, the shortest path starts out heading N (354°).
- kilometers
- 456.5
- nautical miles
- 246.5
- heading from Nampa
- 354° N
- heading from Spokane Valley
- 173° S
Orange line: great-circle path · ring: midpoint · thin lines: county borders
How far Nampa is from Spokane Valley
The great-circle distance between the Census internal points of Nampa and Spokane Valley is 283.6 miles, 456.5 km or 246.5 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 283.6 miles, practically the same at this range.
Measurements
- Miles
- 283.6
- Kilometers
- 456.5
- Nautical miles
- 246.5
- Bearing from Nampa
- 353.7° N
- Bearing arriving at Spokane Valley
- 353.2°
- Bearing from Spokane Valley
- 173.2° S
Halfway between Nampa and Spokane Valley
The great-circle midpoint is at 45.624689, -116.885661 (45°37'28.88"N 116°53'8.38"W). The nearest incorporated place of 1,000 or more people is Enterprise, OR, with 2,083 residents, 23.5 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.
Time zones and daylight
Nampa uses America/Boise and Spokane Valley uses America/Los_Angeles; Spokane Valley is 1 hour behind all year. On June 21, Nampa gets 15 h 26 min of daylight and Spokane Valley 16 h 00 min; on December 21, 8 h 56 min and 8 h 25 min. Spokane Valley is 4.08° farther north, so it has the longer summer days and the shorter winter ones.
Population compared
Nampa has 1.1 times the population of Spokane Valley. From July 2020 to July 2024, Nampa changed by +15.7% and Spokane Valley by +4.5%. The trip crosses from Idaho into Washington.
- 01Nampa, ID117,350 (+15.7%)
- 02Spokane Valley, WA108,267 (+4.5%)
Questions people ask
How far is Nampa from Spokane Valley?
283.6 miles, 456.5 km or 246.5 nautical miles along the great circle between the two Census internal points. Road distance is longer.
Which direction is Spokane Valley from Nampa?
N. The great-circle path leaves Nampa on a bearing of 353.7° and arrives at Spokane Valley on 353.2°. The return trip starts on 173.2°.
What is halfway between Nampa and Spokane Valley?
The midpoint is at 45.624689, -116.885661. The nearest incorporated place of 1,000+ is Enterprise, OR, 23.5 miles from it.
Is there a time difference between Nampa and Spokane Valley?
Nampa uses America/Boise and Spokane Valley uses America/Los_Angeles; Spokane Valley is 1 hour behind all year.
Which is bigger, Nampa or Spokane Valley?
Nampa, with 117,350 residents in July 2024 against 108,267 for Spokane Valley, 1.1 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.
- 01Census 2024 Gazetteer, places
- 02Census Vintage 2024 subcounty population estimates
- 03SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
- 04IANA time zone database (clock times and daylight saving rules)
How every number is computed: methodology. Spotted a wrong figure? Report an error.