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Mullica Hill, NJ
Full City Profile · New Jersey · Gloucester County County
3.9
/5.0
B+
Good
4,561
Population
1,216/sq mi density
$133,750
Median Income
$49,694 per capita
$427,500
Home Value
$576,108 Zillow
$617
Median Rent
24.2% income on rent
55°F
Avg Temperature
297 sunny days/yr
56
Violent Crime/100K
1,141 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$133,750 median income, 3.3% unemployment
A+
Affordability
4.9 / 5.0
$427,500 home value, $617/mo rent
F
Safety
1.0 / 5.0
56 violent crimes/100K
A+
Education
5.0 / 5.0
52.0% bachelor's degree or higher
Mullica Hill experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 33°F in January while summers reach 77°F in July. The area gets 297 sunny days per year. Air quality is rated Good with a median AQI of 39.
Temperature
33°F Jan (1°C)
77°F Jul (25°C)
| Annual Average | 54.9°F |
| 2% above US avg | |
| January Average | 33°F (1°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 111 ft (34 m) |
| Area | 3.6 sq mi (9.3 km²) |
| Population Density | 1,216/sq mi |
| Coordinates | 39.7207°N, 75.2101°W |
| Timezone | America/New_York |
| County | Gloucester County County |
| Nearest Airport | Philadelphia International (PHL) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0470 ppm |
| PM2.5 (Fine Particles) | 7.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.6 / 100 |
| Social Vulnerability | 16.0 / 100 |
| Community Resilience | 85.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 109 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 9 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 3.6 in | Coldest |
| February | 34°F (1°C) | 2.9 in | Driest |
| March | 42°F (6°C) | 4.0 in | |
| April | 52°F (11°C) | 3.7 in | |
| May | 62°F (17°C) | 4.1 in | |
| June | 71°F (22°C) | 3.5 in | |
| July | 77°F (25°C) | 4.4 in | Warmest, Wettest |
| August | 74°F (24°C) | 4.1 in | |
| September | 67°F (20°C) | 3.9 in | |
| October | 56°F (13°C) | 3.1 in | |
| November | 46°F (8°C) | 3.4 in | |
| December | 37°F (3°C) | 3.5 in |
Mullica Hill has a seasonal temperature swing of 44°F / from 33°F in January to 77°F in July. Total annual precipitation is 44.3 inches, with July being the wettest month (4.4") and February the driest (2.9").