All Countries
Waterloo, IA
Full City Profile · Iowa · Black Hawk County County
3.1
/5.0
B
Good
66,947
Population
1,087/sq mi density
$56,344
Median Income
$33,372 per capita
$150,200
Home Value
$143,771 Zillow
$896
Median Rent
27.4% income on rent
46°F
Avg Temperature
260 sunny days/yr
452
Violent Crime/100K
2,484 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$56,344 median income, 4.2% unemployment
A+
Affordability
5.0 / 5.0
$150,200 home value, $896/mo rent
F
Safety
1.0 / 5.0
452 violent crimes/100K (19% above avg)
C+
Education
2.8 / 5.0
22.6% bachelor's degree or higher
Waterloo experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 71°F in July. The area gets 260 sunny days per year. Annual precipitation totals 37.9 inches. The area receives 33.6 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
17°F Jan (-8°C)
71°F Jul (22°C)
| Annual Average | 46.0°F |
| 15% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 892 ft (272 m) |
| Area | 63.2 sq mi (163.8 km²) |
| Population Density | 1,087/sq mi |
| Coordinates | 42.4923°N, 92.3519°W |
| Timezone | America/Chicago |
| County | Black Hawk County County |
| Nearest Airport | Waterloo Regional (ALO) 5 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 9.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 76.6 / 100 |
| Social Vulnerability | 23.4 / 100 |
| Community Resilience | 94.6 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 0.9 in | Coldest, Driest |
| February | 23°F (-5°C) | 1.0 in | |
| March | 35°F (2°C) | 2.3 in | |
| April | 48°F (9°C) | 3.5 in | |
| May | 60°F (16°C) | 4.3 in | |
| June | 70°F (21°C) | 4.5 in | |
| July | 71°F (22°C) | 4.6 in | Warmest, Wettest |
| August | 71°F (22°C) | 4.1 in | |
| September | 63°F (17°C) | 3.5 in | |
| October | 51°F (10°C) | 2.6 in | |
| November | 35°F (2°C) | 2.0 in | |
| December | 22°F (-6°C) | 1.3 in |
Waterloo has a seasonal temperature swing of 54°F / from 17°F in January to 71°F in July. Total annual precipitation is 34.6 inches, with July being the wettest month (4.6") and January the driest (0.9").