Allegheny County vs Montgomery County

A side-by-side comparison of Allegheny County and Montgomery County: population, income, housing, and more.

Allegheny County and Montgomery County are counties in Pennsylvania. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Allegheny County has the higher population (1,240,476 vs 861,225 in Montgomery County). Montgomery County has the higher median household income ($111,521 vs $76,393 in Allegheny County). Montgomery County has the higher median home value ($409,900 vs $216,700 in Allegheny County).

Population, income & housing

	Allegheny County	Montgomery County
Population	1,240,476	861,225
Median age	40.6 yrs	41.1 yrs
Median household income	$76,393	$111,521
Median home value	$216,700	$409,900
Median gross rent	$1,111	$1,612
Housing units	604,558	348,696
Homeownership rate	64.9%	71.7%
Bachelor's degree or higher	44.8%	52.3%
Unemployment rate	4.9%	4.4%

Trends (ACS 5-year, 2019–2023)

	Allegheny County	Montgomery County
Population	1,221,744 → 1,240,476 (+1.5%)	823,823 → 861,225 (+4.5%)
Median household income	$61,043 → $76,393 (+25.1%)	$91,546 → $111,521 (+21.8%)
Median home value	$154,700 → $216,700 (+40.1%)	$316,100 → $409,900 (+29.7%)
Median gross rent	$890 → $1,111 (+24.8%)	$1,295 → $1,612 (+24.5%)

Allegheny County

Population

1,221,7441,240,476

Median household income

$61,043$76,393

Median home value

$154,700$216,700

Median gross rent

$890$1,111

Montgomery County

Population

823,823861,225

Median household income

$91,546$111,521

Median home value

$316,100$409,900

Median gross rent

$1,295$1,612

Age & race/ethnicity

Age distribution (share)

	Allegheny County	Montgomery County
Under 5	5.1%	5.3%
5 to 17	13.6%	16.2%
18 to 24	8.7%	8.0%
25 to 34	14.9%	12.3%
35 to 44	13.0%	13.3%
45 to 54	11.3%	12.7%
55 to 64	13.6%	13.9%
65 to 74	11.6%	10.5%
75 and over	8.1%	7.8%

Race & ethnicity (share)

	Allegheny County	Montgomery County
White (non-Hispanic)	76.1%	72.4%
Black or African American	12.4%	9.1%
American Indian & Alaska Native	0.1%	0.0%
Asian	4.1%	7.8%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.5%	0.5%
Two or more races	4.0%	3.7%
Hispanic or Latino	2.8%	6.5%

Educational attainment (age 25+)

Share of adults 25+

	Allegheny County	Montgomery County
No high school diploma	4.5%	5.1%
High school graduate	25.4%	22.0%
Some college or associate's	25.3%	20.6%
Bachelor's degree	26.0%	29.2%
Graduate or professional degree	18.8%	23.0%

Commute to work

How workers get to work (share)

	Allegheny County	Montgomery County
Drove alone	63.3%	66.6%
Carpooled	6.6%	6.1%
Public transit	6.2%	3.0%
Walked	3.7%	2.0%
Bicycle	0.4%	0.2%
Worked from home	18.6%	21.1%
Other means	1.3%	1.0%

Housing

Units in structure (share)

	Allegheny County	Montgomery County
1-unit, detached	61.6%	53.6%
1-unit, attached	10.2%	20.1%
2 to 4 units	9.0%	6.8%
5 to 19 units	8.1%	6.5%
20 or more units	10.5%	12.1%
Mobile home & other	0.7%	0.8%

Poverty & households

	Allegheny County	Montgomery County
Poverty rate	11.2%	6.5%
Average household size	2.20	2.52
Mean commute (minutes)	26	28
Median year structure built	1957	1970