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Laplace, LA
Full City Profile · Louisiana · St. John the Baptist Parish County
3.1
/5.0
B
Good
28,480
Population
1,363/sq mi density
$68,028
Median Income
$31,315 per capita
$188,900
Home Value
$171,269 Zillow
$1,097
Median Rent
26.8% income on rent
71°F
Avg Temperature
313 sunny days/yr
519
Violent Crime/100K
2,623 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$68,028 median income, 4.8% unemployment
A+
Affordability
5.0 / 5.0
$188,900 home value, $1,097/mo rent
F
Safety
1.0 / 5.0
519 violent crimes/100K (37% above avg)
C+
Education
2.6 / 5.0
20.2% bachelor's degree or higher
Laplace has a warm climate with an average annual temperature of 71°F (22°C). Winters average 54°F in January while summers reach 84°F in July. The area gets 313 sunny days per year. Annual precipitation totals 60.1 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
54°F Jan (12°C)
84°F Jul (29°C)
| Annual Average | 70.9°F |
| 31% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 6 ft (2 m) |
| Area | 20.9 sq mi (54.1 km²) |
| Population Density | 1,363/sq mi |
| Coordinates | 30.0722°N, 90.4770°W |
| Timezone | America/Chicago |
| County | St. John the Baptist Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 14 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0403 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 81.5 / 100 |
| Social Vulnerability | 40.4 / 100 |
| Community Resilience | 99.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 5.5 in | Coldest |
| February | 55°F (13°C) | 5.6 in | |
| March | 61°F (16°C) | 5.4 in | |
| April | 67°F (20°C) | 4.7 in | |
| May | 75°F (24°C) | 5.0 in | |
| June | 80°F (27°C) | 5.6 in | |
| July | 84°F (29°C) | 6.6 in | Warmest, Wettest |
| August | 82°F (28°C) | 6.2 in | |
| September | 78°F (26°C) | 5.8 in | |
| October | 69°F (21°C) | 3.3 in | Driest |
| November | 61°F (16°C) | 4.6 in | |
| December | 55°F (13°C) | 5.3 in |
Laplace has a seasonal temperature swing of 30°F / from 54°F in January to 84°F in July. Total annual precipitation is 63.6 inches, with July being the wettest month (6.6") and October the driest (3.3").