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Edgemoor, DE
Full City Profile · Delaware · Delaware County County
3.2
/5.0
B
Good
6,671
Population
3,474/sq mi density
$79,572
Median Income
$40,888 per capita
$291,000
Home Value
$293,118 Zillow
$1,412
Median Rent
22.5% income on rent
53°F
Avg Temperature
290 sunny days/yr
1,637
Violent Crime/100K
5,250 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$79,572 median income, 7.5% unemployment
A+
Affordability
4.6 / 5.0
$291,000 home value, $1,412/mo rent
F
Safety
1.0 / 5.0
1,637 violent crimes/100K (331% above avg)
B+
Education
3.9 / 5.0
36.4% bachelor's degree or higher
Edgemoor experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 31°F in January while summers reach 76°F in July. The area gets 290 sunny days per year. Annual precipitation totals 50.3 inches. The area receives 12.0 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
31°F Jan (-1°C)
76°F Jul (24°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 290 days/yr |
Geography
| Elevation | 22 ft (7 m) |
| Area | 2.1 sq mi (5.5 km²) |
| Population Density | 3,474/sq mi |
| Coordinates | 39.7539°N, 75.5055°W |
| Timezone | America/New_York |
| County | Delaware County County |
| Nearest Airport | Philadelphia International (PHL) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0484 ppm |
| NO₂ (Nitrogen Dioxide) | 15.0 ppb |
| PM2.5 (Fine Particles) | 10.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.9 / 100 |
| Social Vulnerability | 33.0 / 100 |
| Community Resilience | 84.3 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
| Avalanche | Very Low |
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 | - | - | 115 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 27 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 3.7 in | Coldest |
| February | 34°F (1°C) | 2.9 in | Driest |
| March | 42°F (6°C) | 4.1 in | |
| April | 52°F (11°C) | 3.8 in | |
| May | 62°F (17°C) | 4.4 in | |
| June | 71°F (22°C) | 4.0 in | |
| July | 76°F (24°C) | 4.6 in | Warmest, Wettest |
| August | 75°F (24°C) | 3.9 in | |
| September | 68°F (20°C) | 4.3 in | |
| October | 56°F (13°C) | 3.4 in | |
| November | 46°F (8°C) | 3.6 in | |
| December | 37°F (3°C) | 3.7 in |
Edgemoor has a seasonal temperature swing of 45°F / from 31°F in January to 76°F in July. Total annual precipitation is 46.5 inches, with July being the wettest month (4.6") and February the driest (2.9").