The basics
Total Population
6
Median Age
73.5
Climate & weather
Ranked against U.S. ZIP codes.
Summer Avg High (°F)
86.8
Winter Avg Low (°F)
28.6
Avg Temperature (°F)
57
Hot Days/yr (>90°F)
36.5
Freezing Days/yr (<32°F)
83.6
Annual Precipitation (in)
43.5
Annual Snowfall (in)
31.4
Flood & disaster risk
Ranked against U.S. ZIP codes.
FEMA Risk Score
6.8
Lower than 95%
The full report
Six pillars — each with percentile benchmarks, 16-year trends, and per-metric detail.
People
Work & Money
Housing
Amenities
Environment & Risk
ZIP Code 21705: frequently asked questions
- What is the weather like in ZIP Code 21705?
- ZIP Code 21705 averages 57°F year-round, summer highs near 86.8°F, winter lows around 28.6°F (NOAA 1991–2020 normals). It sees about 31.4 inches of snow a year.
- Is ZIP Code 21705 at risk of flooding or natural disasters?
- ZIP Code 21705's FEMA National Risk Index score is 6.8 (lower than 95% of U.S. ZIP codes). Its greatest modeled natural hazard is earthquake.
Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap, EPA. Explore the map →