Harbor Island, SC

South Carolina · Metropolitan Area

Harbor Island is a small town in South Carolina with a population of 310. Residents earn $100,250 per year, which is 33% above the national average.

5.0 /5.0
A+ Excellent
310 Population 304/sq mi density
$100,250 Median Income $41,638 per capita
$284,500 Home Value
N/A Median Rent
66°F Avg Temperature
A+
Overall
5.0 / 5.0
Excellent overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$100,250 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$284,500 home value
A+
Education
5.0 / 5.0
80.8% bachelor's degree or higher
Median Income $100,250
33% higher than US avg
Home Value $284,500
1% higher than US avg
Bachelor's+ 80.8%
140% higher than US avg
Obesity Rate 22.9%
29% lower than US avg
Unemployment 0.0%
100% lower than US avg
Poverty Rate 0.0%
100% lower than US avg

How Harbor Island Compares to the U.S. Average (100% = U.S. avg)

People

Population310
Median Age69.5 yrs
Density304/mi²
Male / Female55% / 45%
Largest GroupWhite 97%

Economy

A+
Median Income$100,250
Per Capita$41,638
Unemployment0.0%
Poverty0.0%
County GDP$12,873M
Commute27 min

Housing

A+
Home Value$284,500
RentN/A
OwnershipN/A

Crime

ViolentN/A
PropertyN/A

Health

Obesity22.9%
UninsuredN/A
Depression17.3%
Heart Disease3.6%

Climate

Avg Temp66°F
AQI43 (Good)
Elevation2 ft

Education

A+
Bachelor's+80.8%
High School+94.8%
School Score4.51

Community

2024 VoteR 57% / D 42%
Commute27 min
Libraries7

Is Harbor Island a Good Place to Live?

Based on current data, Harbor Island receives an overall livability score of 5.0 out of 5.0, earning a grade of A+. Key strengths include above-average household incomes, low unemployment, a highly educated population, a low poverty rate. Harbor Island stands out as an excellent place to live, with strong marks across most quality-of-life indicators.

Economy & Jobs

The median household income in Harbor Island is $100,250, which is significantly higher than the national average — 33% above $75,149. This places Harbor Island among higher-income communities. The job market is very strong with unemployment at just 0.0%. Only 0.0% of residents live below the poverty line, well below the national rate of 12.4%. Workers commute an average of 27 minutes.

Cost of Living & Housing

The median home value in Harbor Island is $284,500, roughly aligned with the national median of $281,900. At just 2.8x median income, home prices are very affordable relative to local earnings.

Education

Harbor Island is a highly educated community — 80.8% of adults hold a bachelor's degree or higher, well above the national average of 33.7%. 94.8% have completed high school. Area schools have an average test score of 4.5/10.

Climate & Weather

Harbor Island enjoys a moderate climate with an average annual temperature of 66°F. Winters average 48°F in January while summers reach 82°F in July. Air quality is rated Good with a median AQI of 43.

Harbor Island has a population of 310 with a density of 304 people per square mile. The median age is 69.5 years, 79% older than the national median of 38.9. The city is predominantly White (97.1%), with 2.9% Hispanic.

Population

310
Total Population
304
People / sq mi
69.5yrs
Median Age
79% above US avg
1.0mi²
Land Area

Gender Distribution

Male 54.8%
Female 45.2%

Race & Ethnicity

Harbor Island vs U.S. Average

Language Spoken at Home

English Only100.0%
27% above US avg
Spanish0.0%
100% below US avg

Social Characteristics

Harbor Island vs U.S. Average

The median household income in Harbor Island is $100,250, which is 33% above the national average of $75,149. The unemployment rate is 0.0% (below the 3.6% US average). 0.0% of residents live below the poverty line. Workers commute an average of 27 minutes.

Income: Harbor Island vs U.S.

Commute Mode

Income

Median HH Income$100,250
33% above US avg
Per Capita Income$41,638
Avg Weekly Wage$1,053
IRS Avg AGI$116,088

Employment & Poverty

Unemployment0.0%
100% below US avg
Poverty Rate0.0%
100% below US avg
Establishments (County)7,748
County GDP$12,873M

Business (County)

Restaurants590
Healthcare573
Retail806
Manufacturing88

Tax & Cost of Living

Property Tax (IRS)$6,407
83% above US avg
Effective Tax Rate2.25%

Commute & Transportation

Commute Time26.6 min
Work from Home24.6%

Walkability

The median home value in Harbor Island is $284,500, 1% above the national average.

Home Value Sources

Ownership Split

Home Values

Census Median$284,500
1% above US avg
Median List Price$385,000

Real Estate Market (Redfin)

Median List Price$385,000
$/Sq Ft$222
Homes Sold1
Sale-to-List Ratio83.0%
Price Drops22.2%
Inventory27

Rental Costs

HUD Fair Market Rent

Studio$928
1 Bedroom$982
2 Bedrooms$1,155
3 Bedrooms$1,450
4 Bedrooms$1,699

Ownership & Property

Owner-Occupied84.2%

Property Tax

Avg Tax (IRS)$6,407
83% above US avg
Effective Rate2.25%
In Harbor Island, 22.9% of adults are obese (below the 32.1% national rate). 17.3% report depression. 11.0% are physically inactive.

Health Metrics: Harbor Island vs U.S. Average (%)

Chronic Conditions

Obesity22.9%
29% below US avg
Diabetes6.5%
Heart Disease3.6%
High Blood Pressure23.6%
Asthma7.7%
COPD3.2%
Stroke2.0%

Behaviors & Mental Health

Binge Drinking19.9%
Physical Inactivity11.0%
Depression17.3%
Mental Distress11.9%
Physical Distress8.0%

Healthcare Access

Insurance Rate98.6%
Checkup Rate70.5%
Premature Death7,369/100K

Food & Exercise

Food Environment7.7/10
Exercise Access85.0%
Healthcare Facilities573

Crime Rates: Harbor Island vs U.S. Average (per 100,000)

Violent Crime

Property Crime

Traffic Safety

Fatal Crashes (County/yr)22

Safety Score

Harbor Island has an average annual temperature of 66°F (19°C). Winters average 48°F in January while summers reach 82°F in July. Air quality is rated Good with a median AQI of 43.

Temperature

48°F Jan (9°C) 82°F Jul (28°C)
Annual Average65.5°F
21% above US avg
January Average48°F (9°C)
July Average82°F (28°C)

Precipitation & Snow

Air Quality

AQI Median43.0
RatingGood

Geography

Elevation2 ft (1 m)
Area1.0 sq mi (2.6 km²)
Population Density304/sq mi
Coordinates32.4083°N, 80.4382°W
County FIPS45013
It is classified as Metro — under 250K. 80.8% of residents hold a bachelor's degree or higher (140% above US avg). In the 2024 election, the county voted Republican by a 14.5-point margin.

2024 Presidential Election (County)

R 56.6%
D 42.2%

Winner: Republican by 14.5 points

Education

Bachelor's Degree+80.8%
140% above US avg
High School+94.8%
School Test Score4.51
A+ Education Grade (5.0/5.0)

Urban-Rural Classification

RUCC Code 3Metro — under 250K
Population Density304/sq mi
Total Area1.0 sq mi

Infrastructure & Services

Public Libraries7
Healthcare Facilities573
Restaurants590
Retail Stores806

Safety & Disasters

Fatal Crashes (County/yr)22

Commute & Transportation

Avg Commute26.6 min
Work from Home24.6%

Nearby Cities

Compare Harbor Island with another city: