Harbor Island vs Sheldon

A side-by-side comparison of Harbor Island and Sheldon: population, income, housing, and more.

Harbor Island and Sheldon are places in South Carolina. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Sheldon has the higher population (536 vs 310 in Harbor Island). Harbor Island has the higher median household income ($100,250 vs $30,239 in Sheldon). Since 2019, Sheldon's population has grown faster (+7.0% vs -1.9%).

Population, income & housing

	Harbor Island	Sheldon
Population	310	536
Median age	69.5 yrs	44.0 yrs
Median household income	$100,250	$30,239
Median home value	$284,500	—
Housing units	478	345
Homeownership rate	84.2%	66.2%
Bachelor's degree or higher	80.8%	9.4%
Unemployment rate	0.0%	0.0%

Trends (ACS 5-year, 2019–2023)

	Harbor Island	Sheldon
Population	316 → 310 (-1.9%)	501 → 536 (+7.0%)
Median household income	$85,881 → $100,250 (+16.7%)	$27,067 → $30,239 (+11.7%)
Median home value	$404,400 → $284,500 (-29.6%)	$47,900 → $62,700 (+30.9%)
Median gross rent	$1,717 → $1,455 (-15.3%)	—

Harbor Island

Population

316310

Median household income

$85,881$100,250

Median home value

$404,400$284,500

Median gross rent

$1,717$1,455

Sheldon

Population

501536

Median household income

$27,067$30,239

Median home value

$47,900$62,700

Age & race/ethnicity

Age distribution (share)

	Harbor Island	Sheldon
Under 5	0.0%	5.0%
5 to 17	0.0%	6.3%
18 to 24	1.0%	13.4%
25 to 34	0.0%	18.1%
35 to 44	0.0%	11.8%
45 to 54	16.5%	4.9%
55 to 64	11.0%	20.1%
65 to 74	60.6%	18.7%
75 and over	11.0%	1.7%

Race & ethnicity (share)

	Harbor Island	Sheldon
White (non-Hispanic)	97.1%	21.1%
Black or African American	0.0%	75.7%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	2.9%	0.0%
Hispanic or Latino	0.0%	3.2%

Educational attainment (age 25+)

Share of adults 25+

	Harbor Island	Sheldon
No high school diploma	5.2%	13.4%
High school graduate	3.6%	59.6%
Some college or associate's	10.4%	17.6%
Bachelor's degree	42.0%	9.4%
Graduate or professional degree	38.8%	0.0%

Commute to work

How workers get to work (share)

	Harbor Island	Sheldon
Drove alone	75.4%	67.4%
Carpooled	0.0%	19.0%
Public transit	0.0%	0.0%
Walked	0.0%	0.0%
Bicycle	0.0%	0.0%
Worked from home	24.6%	0.0%
Other means	0.0%	13.6%

Housing

Units in structure (share)

	Harbor Island	Sheldon
1-unit, detached	60.3%	33.3%
1-unit, attached	15.7%	0.0%
2 to 4 units	2.7%	0.0%
5 to 19 units	20.5%	0.0%
20 or more units	0.8%	0.0%
Mobile home & other	0.0%	66.7%

Poverty & households

	Harbor Island	Sheldon
Poverty rate	4.2%	14.4%
Average household size	2.12	1.95
Mean commute (minutes)	27	28
Median year structure built	1995	1992