Mercersburg vs Pen Mar

A side-by-side comparison of Mercersburg and Pen Mar: population, income, housing, and more.

Mercersburg and Pen Mar are places in Pennsylvania. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Mercersburg has the higher population (1,940 vs 1,338 in Pen Mar). Pen Mar has the higher median household income ($117,010 vs $69,583 in Mercersburg). Pen Mar has the higher median home value ($264,100 vs $210,400 in Mercersburg).

Population, income & housing

	Mercersburg	Pen Mar
Population	1,940	1,338
Median age	46.3 yrs	35.3 yrs
Median household income	$69,583	$117,010
Median home value	$210,400	$264,100
Median gross rent	$784	—
Housing units	879	446
Homeownership rate	59.3%	96.0%
Bachelor's degree or higher	19.2%	30.4%
Unemployment rate	4.8%	4.2%

Trends (ACS 5-year, 2019–2023)

	Mercersburg	Pen Mar
Population	1,633 → 1,940 (+18.8%)	1,025 → 1,338 (+30.5%)
Median household income	$51,597 → $69,583 (+34.9%)	$76,786 → $117,010 (+52.4%)
Median home value	$175,300 → $210,400 (+20.0%)	$208,800 → $264,100 (+26.5%)
Median gross rent	$783 → $784 (+0.1%)	—

Mercersburg

Population

1,6331,940

Median household income

$51,597$69,583

Median home value

$175,300$210,400

Median gross rent

$783$784

Pen Mar

Population

1,0251,338

Median household income

$76,786$117,010

Median home value

$208,800$264,100

Age & race/ethnicity

Age distribution (share)

	Mercersburg	Pen Mar
Under 5	5.3%	8.1%
5 to 17	12.8%	27.1%
18 to 24	7.7%	2.7%
25 to 34	13.2%	9.0%
35 to 44	10.3%	24.1%
45 to 54	14.6%	12.6%
55 to 64	17.7%	7.9%
65 to 74	8.0%	4.3%
75 and over	10.4%	4.2%

Race & ethnicity (share)

	Mercersburg	Pen Mar
White (non-Hispanic)	88.8%	84.1%
Black or African American	3.2%	3.1%
American Indian & Alaska Native	0.0%	0.0%
Asian	1.2%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	3.7%	10.4%
Hispanic or Latino	3.0%	2.4%

Educational attainment (age 25+)

Share of adults 25+

	Mercersburg	Pen Mar
No high school diploma	11.3%	13.4%
High school graduate	48.6%	36.7%
Some college or associate's	20.9%	19.5%
Bachelor's degree	9.8%	22.4%
Graduate or professional degree	9.4%	8.1%

Commute to work

How workers get to work (share)

	Mercersburg	Pen Mar
Drove alone	76.1%	70.7%
Carpooled	8.1%	11.8%
Public transit	0.0%	0.5%
Walked	9.2%	0.0%
Bicycle	0.0%	0.0%
Worked from home	6.2%	17.1%
Other means	0.4%	0.0%

Housing

Units in structure (share)

	Mercersburg	Pen Mar
1-unit, detached	59.2%	95.1%
1-unit, attached	13.3%	4.9%
2 to 4 units	15.6%	0.0%
5 to 19 units	5.7%	0.0%
20 or more units	5.2%	0.0%
Mobile home & other	1.0%	0.0%

Poverty & households

	Mercersburg	Pen Mar
Poverty rate	10.4%	1.0%
Average household size	2.39	3.16
Mean commute (minutes)	29	30
Median year structure built	1948	1980