All Countries
Mertzon, TX
Full City Profile · Texas · Irion County County
3.3
/5.0
B
Good
819
Population
539/sq mi density
$60,956
Median Income
$28,844 per capita
$121,700
Home Value
$271,515 Zillow
$861
Median Rent
41.3% income on rent
64°F
Avg Temperature
328 sunny days/yr
330
Violent Crime/100K
3,845 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$60,956 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$121,700 home value, $861/mo rent
F
Safety
1.0 / 5.0
330 violent crimes/100K
C+
Education
2.9 / 5.0
24.3% bachelor's degree or higher
Mertzon enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 44°F in January while summers reach 82°F in July. The area gets 328 sunny days per year. Annual precipitation totals 21.6 inches. Air quality is rated Good with a median AQI of 42.
Temperature
44°F Jan (7°C)
82°F Jul (28°C)
| Annual Average | 63.9°F |
| 18% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 328 days/yr |
Geography
| Elevation | 2,211 ft (674 m) |
| Area | 1.5 sq mi (3.9 km²) |
| Population Density | 539/sq mi |
| Coordinates | 31.2620°N, 100.8208°W |
| Timezone | America/Chicago |
| County | Irion County County |
| Nearest Airport | San Angelo Regional/Mathis Field (SJT) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 1.8 / 100 |
| Social Vulnerability | 71.7 / 100 |
| Community Resilience | 15.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.8 in | Coldest, Driest |
| February | 49°F (9°C) | 1.2 in | |
| March | 56°F (14°C) | 1.0 in | |
| April | 65°F (18°C) | 1.6 in | |
| May | 73°F (23°C) | 3.0 in | |
| June | 79°F (26°C) | 2.3 in | |
| July | 82°F (28°C) | 1.5 in | Warmest |
| August | 81°F (27°C) | 2.4 in | |
| September | 74°F (24°C) | 3.3 in | Wettest |
| October | 65°F (18°C) | 2.2 in | |
| November | 54°F (12°C) | 1.1 in | |
| December | 46°F (8°C) | 0.9 in |
Mertzon has a seasonal temperature swing of 38°F / from 44°F in January to 82°F in July. Total annual precipitation is 21.1 inches, with September being the wettest month (3.3") and January the driest (0.8").