Black Rock vs Portia

A side-by-side comparison of Black Rock and Portia: population, income, housing, and more.

Black Rock and Portia are places in Arkansas. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Black Rock has the higher population (790 vs 441 in Portia). Black Rock has the higher median household income ($59,531 vs $38,250 in Portia). Portia has the higher median home value ($82,800 vs $68,300 in Black Rock).

Population, income & housing

	Black Rock	Portia
Population	790	441
Median age	39.3 yrs	50.3 yrs
Median household income	$59,531	$38,250
Median home value	$68,300	$82,800
Median gross rent	$760	$398
Housing units	363	232
Homeownership rate	84.9%	75.0%
Bachelor's degree or higher	4.3%	4.5%
Unemployment rate	11.7%	5.7%

Trends (ACS 5-year, 2019–2023)

	Black Rock	Portia
Population	827 → 790 (-4.5%)	580 → 441 (-24.0%)
Median household income	$35,365 → $59,531 (+68.3%)	$37,143 → $38,250 (+3.0%)
Median home value	$70,600 → $68,300 (-3.3%)	$60,000 → $82,800 (+38.0%)
Median gross rent	$545 → $760 (+39.4%)	$517 → $398 (-23.0%)

Black Rock

Population

827790

Median household income

$35,365$59,531

Median home value

$70,600$68,300

Median gross rent

$545$760

Portia

Population

580441

Median household income

$37,143$38,250

Median home value

$60,000$82,800

Median gross rent

$517$398

Age & race/ethnicity

Age distribution (share)

	Black Rock	Portia
Under 5	3.4%	4.5%
5 to 17	24.3%	5.7%
18 to 24	4.8%	13.4%
25 to 34	11.1%	5.0%
35 to 44	11.8%	12.2%
45 to 54	22.7%	13.4%
55 to 64	9.0%	15.2%
65 to 74	7.1%	17.9%
75 and over	5.8%	12.7%

Race & ethnicity (share)

	Black Rock	Portia
White (non-Hispanic)	94.9%	98.6%
Black or African American	0.0%	0.9%
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	5.1%	0.5%
Hispanic or Latino	0.0%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Black Rock	Portia
No high school diploma	17.6%	34.1%
High school graduate	38.3%	42.7%
Some college or associate's	39.8%	18.7%
Bachelor's degree	3.2%	4.5%
Graduate or professional degree	1.1%	0.0%

Commute to work

How workers get to work (share)

	Black Rock	Portia
Drove alone	55.6%	85.2%
Carpooled	38.6%	9.3%
Public transit	0.0%	0.0%
Walked	2.9%	2.7%
Bicycle	0.0%	2.7%
Worked from home	2.9%	0.0%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Black Rock	Portia
1-unit, detached	81.3%	75.4%
1-unit, attached	0.0%	0.0%
2 to 4 units	2.8%	15.5%
5 to 19 units	0.0%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	16.0%	9.1%

Poverty & households

	Black Rock	Portia
Poverty rate	22.2%	18.6%
Average household size	2.49	2.09
Mean commute (minutes)	33	25
Median year structure built	1978	1970