All Countries
Youngsville, LA
Full City Profile · Louisiana · St. Martin Parish County
3.7
/5.0
B+
Good
16,664
Population
1,328/sq mi density
$113,164
Median Income
$40,657 per capita
$263,200
Home Value
$275,361 Zillow
$1,318
Median Rent
26.9% income on rent
68°F
Avg Temperature
313 sunny days/yr
93
Violent Crime/100K
1,045 property/100K
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$113,164 median income, 1.7% unemployment
A+
Affordability
5.0 / 5.0
$263,200 home value, $1,318/mo rent
F
Safety
1.0 / 5.0
93 violent crimes/100K
B+
Education
4.0 / 5.0
37.3% bachelor's degree or higher
Youngsville enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 52°F in January while summers reach 81°F in July. The area gets 313 sunny days per year. Annual precipitation totals 66.8 inches. Air quality is rated Good with a median AQI of 42.
Temperature
52°F Jan (11°C)
81°F Jul (27°C)
| Annual Average | 67.8°F |
| 26% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 11.0 sq mi (28.4 km²) |
| Population Density | 1,328/sq mi |
| Coordinates | 30.0958°N, 91.9965°W |
| Timezone | America/Chicago |
| County | St. Martin Parish County |
| Nearest Airport | Lafayette Regional/Paul Fournet Field (LFT) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0410 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.3 / 100 |
| Social Vulnerability | 88.0 / 100 |
| Community Resilience | 81.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 5.4 in | Coldest |
| February | 54°F (12°C) | 4.2 in | |
| March | 61°F (16°C) | 4.3 in | |
| April | 68°F (20°C) | 4.4 in | |
| May | 75°F (24°C) | 5.1 in | |
| June | 80°F (27°C) | 5.9 in | |
| July | 81°F (27°C) | 7.0 in | Wettest |
| August | 82°F (28°C) | 6.0 in | Warmest |
| September | 78°F (26°C) | 5.4 in | |
| October | 69°F (21°C) | 4.1 in | Driest |
| November | 60°F (16°C) | 4.3 in | |
| December | 54°F (12°C) | 5.4 in |
Youngsville has a seasonal temperature swing of 30°F / from 52°F in January to 82°F in August. Total annual precipitation is 61.4 inches, with July being the wettest month (7.0") and October the driest (4.1").