Demarest, NJ
Full City Profile · New Jersey · Bronx County County
3.9
/5.0
B+
Good
4,916
Population
2,375/sq mi density
$175,078
Median Income
$106,410 per capita
$965,400
Home Value
$1,544,277 Zillow
$3,501
Median Rent
51.0% income on rent
55°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$175,078 median income, 5.9% unemployment
B+
Affordability
3.6 / 5.0
$965,400 home value, $3,501/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A+
Education
5.0 / 5.0
74.7% bachelor's degree or higher
Demarest experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 33°F in January while summers reach 78°F in July. Annual precipitation totals 47.1 inches. The area receives 29.8 inches of snow annually.
Temperature
33°F Jan (0°C)
78°F Jul (26°C)
| Annual Average | 55.4°F |
| 3% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 78°F (26°C) |
Geography
| Elevation | 69 ft (21 m) |
| Area | 2.1 sq mi (5.4 km²) |
| Population Density | 2,375/sq mi |
| Coordinates | 40.9541°N, 73.9549°W |
| Timezone | America/New_York |
| County | Bronx County County |
| Nearest Airport | Laguardia (LGA) 13 miles away |
Precipitation & Snow
Air Quality
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0422 ppm |
| NO₂ (Nitrogen Dioxide) | 21.1 ppb |
| SO₂ (Sulfur Dioxide) | 0.44 ppb |
| CO (Carbon Monoxide) | 0.27 ppm |
| PM2.5 (Fine Particles) | 8.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.4 / 100 |
| Social Vulnerability | 99.7 / 100 |
| Community Resilience | 6.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Very High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Very High |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 0.3 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1964 | LONG ISLAND, NY | Meteorological | 0.3 m | - | 74 km |
| 1895 | HIGH BRIDGE, NJ | Earthquake | - | - | 84 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (0°C) | 3.4 in | Coldest |
| February | 35°F (2°C) | 3.0 in | Driest |
| March | 42°F (6°C) | 4.1 in | |
| April | 53°F (12°C) | 3.9 in | |
| May | 63°F (17°C) | 3.6 in | |
| June | 73°F (23°C) | 4.1 in | |
| July | 78°F (26°C) | 4.5 in | Warmest |
| August | 76°F (25°C) | 4.5 in | Wettest |
| September | 69°F (21°C) | 4.5 in | |
| October | 57°F (14°C) | 4.1 in | |
| November | 47°F (8°C) | 3.5 in | |
| December | 38°F (3°C) | 4.0 in |
Demarest has a seasonal temperature swing of 45°F / from 33°F in January to 78°F in July. Total annual precipitation is 47.1 inches, with August being the wettest month (4.5") and February the driest (3.0").