Marion County vs Marlboro County

A side-by-side comparison of Marion County and Marlboro County: population, income, housing, and more.

Marion County and Marlboro County are counties in South Carolina. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Marion County has the higher population (28,900 vs 26,285 in Marlboro County). Marlboro County has the higher median household income ($36,293 vs $34,501 in Marion County). Marion County has the higher median home value ($86,800 vs $74,500 in Marlboro County).

Population, income & housing

	Marion County	Marlboro County
Population	28,900	26,285
Median age	43.0 yrs	41.2 yrs
Median household income	$34,501	$36,293
Median home value	$86,800	$74,500
Median gross rent	$663	$686
Housing units	14,418	12,059
Homeownership rate	62.2%	63.0%
Bachelor's degree or higher	13.8%	8.7%
Unemployment rate	5.9%	8.4%

Trends (ACS 5-year, 2019–2023)

	Marion County	Marlboro County
Population	31,308 → 28,900 (-7.7%)	26,753 → 26,285 (-1.7%)
Median household income	$32,063 → $34,501 (+7.6%)	$33,586 → $36,293 (+8.1%)
Median home value	$76,700 → $86,800 (+13.2%)	$67,500 → $74,500 (+10.4%)
Median gross rent	$594 → $663 (+11.6%)	$610 → $686 (+12.5%)

Marion County

Population

31,30828,900

Median household income

$32,063$34,501

Median home value

$76,700$86,800

Median gross rent

$594$663

Marlboro County

Population

26,75326,285

Median household income

$33,586$36,293

Median home value

$67,500$74,500

Median gross rent

$610$686

Age & race/ethnicity

Age distribution (share)

	Marion County	Marlboro County
Under 5	5.2%	5.3%
5 to 17	17.2%	14.8%
18 to 24	7.7%	7.9%
25 to 34	10.8%	13.9%
35 to 44	12.0%	12.6%
45 to 54	12.1%	12.6%
55 to 64	13.8%	14.3%
65 to 74	13.5%	11.3%
75 and over	7.7%	7.3%

Race & ethnicity (share)

	Marion County	Marlboro County
White (non-Hispanic)	38.4%	37.9%
Black or African American	55.7%	49.1%
American Indian & Alaska Native	0.3%	3.4%
Asian	0.1%	0.4%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.1%	1.0%
Two or more races	2.7%	5.5%
Hispanic or Latino	2.6%	2.7%

Educational attainment (age 25+)

Share of adults 25+

	Marion County	Marlboro County
No high school diploma	16.0%	18.5%
High school graduate	48.9%	49.6%
Some college or associate's	21.4%	23.2%
Bachelor's degree	8.4%	6.0%
Graduate or professional degree	5.3%	2.7%

Commute to work

How workers get to work (share)

	Marion County	Marlboro County
Drove alone	85.0%	88.5%
Carpooled	8.3%	6.8%
Public transit	0.0%	0.3%
Walked	1.0%	0.9%
Bicycle	0.0%	0.4%
Worked from home	4.5%	2.3%
Other means	1.2%	0.7%

Housing

Units in structure (share)

	Marion County	Marlboro County
1-unit, detached	55.9%	61.8%
1-unit, attached	0.4%	0.3%
2 to 4 units	6.2%	5.2%
5 to 19 units	1.6%	2.7%
20 or more units	0.0%	0.3%
Mobile home & other	35.9%	29.7%

Poverty & households

	Marion County	Marlboro County
Poverty rate	27.3%	26.2%
Average household size	2.43	2.45
Mean commute (minutes)	29	27
Median year structure built	1983	1978