The basics
Total Population
576
Median Age
41.9
Home values & property tax
Ranked against U.S. ZIP codes.
Median Home Value
$9,999
Lower than 91%
Median Property Tax
$199
Effective Tax Rate
2%
Climate & weather
Ranked against U.S. ZIP codes.
Summer Avg High (°F)
87.9
Winter Avg Low (°F)
29.1
Avg Temperature (°F)
58.3
Hot Days/yr (>90°F)
42.9
Freezing Days/yr (<32°F)
82.7
Annual Precipitation (in)
47.2
Annual Snowfall (in)
8
Flood & disaster risk
Ranked against U.S. ZIP codes.
FEMA Risk Score
87.5
Higher than 81%
EAL Flood/Coastal per $1K
0.35
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 21840: frequently asked questions
- What is the median home value in ZIP Code 21840?
- The median home value in ZIP Code 21840 is $9,999, lower than 91% of U.S. ZIP codes.
- How much is property tax in ZIP Code 21840?
- The median annual property tax in ZIP Code 21840 is $199, an effective rate of 2% of home value.
- What is the weather like in ZIP Code 21840?
- ZIP Code 21840 averages 58.3°F year-round, summer highs near 87.9°F, winter lows around 29.1°F (NOAA 1991–2020 normals). It sees about 8 inches of snow a year.
- Is ZIP Code 21840 at risk of flooding or natural disasters?
- ZIP Code 21840's FEMA National Risk Index score is 87.5 (higher than 81% of U.S. ZIP codes). Its greatest modeled natural hazard is hurricane. Expected annual loss from flooding is 0.35 per $1,000 of building value.
Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap, EPA. Explore the map →