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Iowa Colony, TX
Full City Profile · Texas · Brazoria County County
3.8
/5.0
B+
Good
11,028
Population
996/sq mi density
$126,167
Median Income
$47,835 per capita
$356,300
Home Value
$333,261 Zillow
$2,188
Median Rent
18.0% income on rent
69°F
Avg Temperature
314 sunny days/yr
57
Violent Crime/100K
1,243 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$126,167 median income, 4.4% unemployment
A+
Affordability
5.0 / 5.0
$356,300 home value, $2,188/mo rent
F
Safety
1.0 / 5.0
57 violent crimes/100K
A+
Education
4.5 / 5.0
44.1% bachelor's degree or higher
Iowa Colony enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 53°F in January while summers reach 83°F in July. The area gets 314 sunny days per year. Annual precipitation totals 55.1 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
53°F Jan (12°C)
83°F Jul (28°C)
| Annual Average | 69.3°F |
| 28% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 7.3 sq mi (18.9 km²) |
| Population Density | 996/sq mi |
| Coordinates | 29.4411°N, 95.4238°W |
| Timezone | America/Chicago |
| County | Brazoria County County |
| Nearest Airport | William P Hobby (HOU) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0382 ppm |
| NO₂ (Nitrogen Dioxide) | 6.4 ppb |
| SO₂ (Sulfur Dioxide) | 0.55 ppb |
| PM2.5 (Fine Particles) | 8.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.6 / 100 |
| Social Vulnerability | 24.0 / 100 |
| Community Resilience | 82.0 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 3.7 in | Coldest |
| February | 55°F (13°C) | 3.0 in | |
| March | 62°F (17°C) | 2.8 in | Driest |
| April | 68°F (20°C) | 3.0 in | |
| May | 75°F (24°C) | 4.7 in | |
| June | 80°F (27°C) | 5.8 in | |
| July | 83°F (28°C) | 4.8 in | Warmest |
| August | 83°F (28°C) | 4.4 in | |
| September | 79°F (26°C) | 6.1 in | Wettest |
| October | 71°F (21°C) | 3.9 in | |
| November | 62°F (16°C) | 4.3 in | |
| December | 55°F (13°C) | 3.6 in |
Iowa Colony has a seasonal temperature swing of 29°F / from 53°F in January to 83°F in July. Total annual precipitation is 50.0 inches, with September being the wettest month (6.1") and March the driest (2.8").