Columbus Junction, IA
Full City Profile · Iowa · Louisa County County
3.9
/5.0
B+
Good
2,129
Population
990/sq mi density
$76,518
Median Income
$30,420 per capita
$114,200
Home Value
$164,797 Zillow
$591
Median Rent
21.0% income on rent
49°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$76,518 median income, 3.3% unemployment
A+
Affordability
5.0 / 5.0
$114,200 home value, $591/mo rent
C
Education
2.4 / 5.0
17.1% bachelor's degree or higher
Columbus Junction experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 20°F in January while summers reach 73°F in July. Annual precipitation totals 38.8 inches. The area receives 31.3 inches of snow annually.
Temperature
20°F Jan (-6°C)
73°F Jul (23°C)
| Annual Average | 48.8°F |
| 10% below US avg | |
| January Average | 20°F (-6°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 630 ft (192 m) |
| Area | 2.2 sq mi (5.7 km²) |
| Population Density | 990/sq mi |
| Coordinates | 41.2789°N, 91.3639°W |
| Timezone | America/Chicago |
| County | Louisa County County |
| Nearest Airport | Southeast Iowa Regional (BRL) 36 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 17.5 / 100 |
| Social Vulnerability | 13.6 / 100 |
| Community Resilience | 58.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-6°C) | 1.2 in | Coldest, Driest |
| February | 24°F (-4°C) | 1.9 in | |
| March | 37°F (3°C) | 2.3 in | |
| April | 50°F (10°C) | 3.9 in | |
| May | 61°F (16°C) | 5.4 in | Wettest |
| June | 70°F (21°C) | 4.9 in | |
| July | 73°F (23°C) | 4.1 in | Warmest |
| August | 72°F (22°C) | 4.2 in | |
| September | 64°F (18°C) | 3.8 in | |
| October | 51°F (11°C) | 3.0 in | |
| November | 38°F (3°C) | 2.2 in | |
| December | 26°F (-3°C) | 1.9 in |
Columbus Junction has a seasonal temperature swing of 53°F / from 20°F in January to 73°F in July. Total annual precipitation is 38.8 inches, with May being the wettest month (5.4") and January the driest (1.2").