Islandton, SC
Full City Profile · South Carolina · Colleton County County
3.9
/5.0
B+
Good
54
Population
19/sq mi density
$38,250
Median Income
$25,650 per capita
$126,300
Home Value
$189,593 Zillow
67°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$38,250 median income, 0.0% unemployment
A+
Affordability
4.8 / 5.0
$126,300 home value, /mo rent
C+
Education
2.9 / 5.0
24.1% bachelor's degree or higher
Islandton enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 51°F in January while summers reach 82°F in July. Annual precipitation totals 45.2 inches. The area receives 0.1 inches of snow annually.
Temperature
51°F Jan (10°C)
82°F Jul (28°C)
| Annual Average | 66.9°F |
| 24% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 82°F (28°C) |
Geography
| Elevation | 60 ft (18 m) |
| Area | 2.8 sq mi (7.2 km²) |
| Population Density | 19/sq mi |
| Coordinates | 32.9093°N, 80.9359°W |
| Timezone | America/New_York |
| County | Colleton County County |
| Nearest Airport | Lowcountry Regional (RBW) 17 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 85.5 / 100 |
| Social Vulnerability | 90.0 / 100 |
| Community Resilience | 45.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1886 | CHARLESTON, SC | Earthquake | - | - | 87 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 3.8 in | Coldest |
| February | 54°F (12°C) | 3.1 in | |
| March | 60°F (16°C) | 3.8 in | |
| April | 67°F (19°C) | 3.3 in | |
| May | 74°F (23°C) | 2.5 in | Driest |
| June | 80°F (26°C) | 5.3 in | |
| July | 82°F (28°C) | 4.8 in | Warmest |
| August | 81°F (27°C) | 5.9 in | Wettest |
| September | 77°F (25°C) | 4.2 in | |
| October | 68°F (20°C) | 3.0 in | |
| November | 59°F (15°C) | 3.1 in | |
| December | 53°F (11°C) | 2.7 in |
Islandton has a seasonal temperature swing of 32°F / from 51°F in January to 82°F in July. Total annual precipitation is 45.3 inches, with August being the wettest month (5.9") and May the driest (2.5").