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Lewisville, ID
Full City Profile · Idaho · Jefferson County County
2.9
/5.0
C+
Fair
489
Population
741/sq mi density
$70,417
Median Income
$25,561 per capita
$228,800
Home Value
$383,172 Zillow
$800
Median Rent
15.0% income on rent
47°F
Avg Temperature
302 sunny days/yr
25
Violent Crime/100K
1,847 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$70,417 median income, 7.9% unemployment
A+
Affordability
4.9 / 5.0
$228,800 home value, $800/mo rent
F
Safety
1.0 / 5.0
25 violent crimes/100K
C
Education
2.1 / 5.0
14.2% bachelor's degree or higher
Lewisville experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 23°F in January while summers reach 71°F in July. The area gets 302 sunny days per year. Annual precipitation totals 13.5 inches. Air quality is rated Good with a median AQI of 33.
Temperature
23°F Jan (-5°C)
71°F Jul (22°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 4,798 ft (1,462 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 741/sq mi |
| Coordinates | 43.6957°N, 112.0139°W |
| Timezone | America/Boise |
| County | Jefferson County County |
| Nearest Airport | Idaho Falls Regional (IDA) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 40.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 39.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Hell's Half Acre (41 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hell's Half Acre | Shield | 1,631 m (5,351 ft) | -3250 | 41 km |
| Craters of the Moon | Pyroclastic cone(s) | 2,005 m (6,578 ft) | -130 | 124 km |
| Wapi Lava Field | Shield | 1,604 m (5,262 ft) | -300 | 133 km |
| Yellowstone | Caldera(s) | 2,805 m (9,203 ft) | -1350 | 135 km |
| Black Butte Crater Lava Field | Shield | 1,478 m (4,849 ft) | -8400 | 197 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 0.8 in | |
| February | 25°F (-4°C) | 0.7 in | Driest |
| March | 34°F (1°C) | 0.7 in | |
| April | 43°F (6°C) | 0.9 in | |
| May | 52°F (11°C) | 1.4 in | Wettest |
| June | 60°F (16°C) | 1.4 in | |
| July | 71°F (22°C) | 0.8 in | Warmest |
| August | 66°F (19°C) | 0.7 in | |
| September | 56°F (13°C) | 0.9 in | |
| October | 45°F (7°C) | 0.8 in | |
| November | 31°F (-1°C) | 1.0 in | |
| December | 20°F (-6°C) | 0.9 in | Coldest |
Lewisville has a seasonal temperature swing of 50°F / from 20°F in December to 71°F in July. Total annual precipitation is 11.1 inches, with May being the wettest month (1.4") and February the driest (0.7").