Plum, PA demographics:
population, income, and more

Total population
31,275
-0.4% year-over-year change
Median household income
$79,770/yr
3.9% year-over-year change
Housing units
14,353
1.2% year-over-year change

Plum population

How many people live in Plum

Plum is home to 31,275 residents, according to the most recent Census data. Gender-wise, 51.6% of Plum locals are male, and 48.4% are female.

Total population
31,275
-0.4% year-over-year change
Gender ratio
Male
51.6%
16,131
Female
48.4%
15,144
Value Percent YoY change
Male 16,131 51.6% 0.9%
Female 15,144 48.4% -1.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Plum is 45, with the population distributed as follows: about 16.8% are children under 15, then 8.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 24.6% of the population, while another 26.9% fall into the 45 to 64 bracket. Finally, around 22.8% are 65 or older.

Median age
45
Age breakdown
Under 15
16.8%
15 to 24
8.9%
25 to 44
24.6%
45 to 64
26.9%
Over 65
22.8%
Value Percent YoY change
Under 15 5,261 16.8% -3.1%
15 to 24 2,778 8.9% -2.1%
25 to 44 7,697 24.6% -1.4%
45 to 64 8,414 26.9% -2.9%
Over 65 7,126 22.8% 7.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Plum, 97.3% of the population are US-born citizens, while 2.3% have gained naturalized citizenship. At the same time, 0.4% of residents are non-citizens. As for race, 87.8% of locals are Caucasian, 6.4% are African American and 1% have Asian roots. There’s also a share of 3.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.3%
Non-U.S.-born citizens
2.3%
Non-citizens
0.4%
Value Percent YoY change
U.S.-born citizens 30,423 97.3% -0.6%
Non-U.S.-born citizens 727 2.3% 12.0%
Non-citizens 126 0.4% -18.7%
Racial breakdown
White
87.8%
Black or African American
6.4%
American Indian and Alaska Native
0.1%
Asian
1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
3.7%
Other
0.8%
Value Percent
White 27,468 87.8%
Black or African American 2,009 6.4%
American Indian and Alaska Native 37 0.1%
Asian 320 1%
Native Hawaiian and other Pacific Islander 15 0%
Two or more races 1,161 3.7%
Other 264 0.8%

Households in Plum

A peek inside Plum households

Plum has 13,228 households, with an average of 2 members in each. Of these, 65.8% are families, while the remaining 34.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
13,228
1.1% year-over-year change
Average people per household
2
Non-family households
4,523
Family households
8,705
Value Percent YoY change
Non-family households 4,523 34.2% 4.8%
Family households 8,705 65.8% -0.8%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Plum

The housing landscape of Plum

Plum's housing consists of 14,353 units, with 77.8% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.9% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1.1% of the housing landscape.

Housing units
14,353
1.2% year-over-year change
Housing types
Value Percent
1 unit, detached 11,172 77.8%
1 unit, attached 1,279 8.9%
2 units 286 2%
3 or 4 units 353 2.5%
5 to 9 units 301 2.1%
10 to 19 units 292 2%
20 to 49 units 178 1.2%
50 or more units 336 2.3%
Mobile home 155 1.1%
Boat, RV, van, etc. 1 0%
Homes built since 2020
27
80.0% year-over-year change

The age of buildings in Plum

In Plum, the median construction year is 1961. About 12% of homes were built before the 1940s, with another 5.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 6.7% of homes were added from 2000 to 2009, 4% between 2010 and 2019, and 0.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,725 12% -0.5%
Built between 1940 and 1949 839 5.8% 0.2%
Built between 1950 and 1959 2,465 17.2% 0.2%
Built between 1960 and 1969 3,263 22.7% -3.4%
Built between 1970 and 1979 2,182 15.2% 4.0%
Built between 1980 and 1989 1,125 7.8% 5.9%
Built between 1990 and 1999 1,195 8.3% 3.7%
Built between 2000 and 2009 959 6.7% 5.0%
Built between 2010 and 2019 573 4% 6.5%
Built in 2020 or later 27 0.2% 80.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Plum occupancy rates

Out of the 13,228 occupied housing units in Plum, 77.6% are owner-occupied, while 22.4% are lived in by tenants. Meanwhile, 7.8% of all homes on the local market sit vacant.

Occupied housing units
13,228
1.1% year-over-year change
Occupancy breakdown
Renter occupied
2,966
Owner occupied
10,261
Value Percent YoY
change
Renter occupied 2,966 22.4% 1.4%
Owner occupied 10,261 77.6% 0.9%
Unoccupied housing units
7.8%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Plum housing costs

Housing costs in Plum come to a median of $1,129 per month, while tenants specifically pay a median gross rent of $1,157.

Median housing costs per month
$1,129/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Plum
$1,157/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Plum

Plum education at a glance

About 32.9% of the population in Plum went to high school, while 15.3% pursued college studies. Another 13.5% earned an associate degree and 24% hold a bachelor’s. Meanwhile, 13.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 196 0.8% -6.2%
High school diploma 8,235 32.9% 3.1%
College diploma 3,828 15.3% -8.4%
Associate degree 3,375 13.5% -2.1%
Bachelor's degree 6,002 24% 0.9%
Graduate degree 3,367 13.5% 7.6%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Plum

How much people earn in Plum

The average annual household income in Plum was $104,512 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +3.2% change from the previous year. At the same time, the median income stood at $79,770, reflecting a +3.9% shift over the same period.

Average household income in Plum
$104,512/year
3.1% year-over-year change
Median household income in Plum
$79,770/year
3.9% year-over-year change

Plum income by age

In Plum, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $104,916. Those with someone between 45 and 64 in charge, often well established professionally, earn $105,872 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $46,291, while those led by someone over 65, many of whom may be retired, have about $50,102 in earnings. Overall, 93.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $46,291 -16.7%
25 - 44 $104,916 4.7%
45 - 64 $105,872 4.5%
Over 65 $50,102 7.0%
Above poverty level
28,766
Below poverty level
2,059
Value Percent YoY
change
Above poverty level 28,766 93.3% -0.5%
Below poverty level 2,059 6.7% 6.1%

Average renter income in Plum

To get a better sense of what renters earn on average in Plum, their median household income was $60,272 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 23%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$60,272
Rent-to-income ratio
23%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Plum

Workforce and job types in Plum

82.2% of the working population are employed in professional or administrative positions, while 17.8% are in hands-on or service-based jobs. Also, 7.5% run their own businesses, 69% are employed by private companies, and 9.8% work in the public sector.

Workforce demographics

White collar
13,373
Blue collar
2,886
Value Percent YoY change
White collar 13,373 82.2% 0.3%
Blue collar 2,886 17.8% -4.3%
Employer type
Self employees
7.5%
Private companies
69%
Governmental workers
9.8%
Not for profit companies
13.7%
Value Percent YoY change
Self employees 1,222 7.5% 14.0%
Private companies 11,223 69% 0.7%
Governmental workers 1,590 9.8% -14.2%
Not for profit companies 2,225 13.7% -2.5%

Transportation in Plum

How people get around in Plum

In Plum, the average commute time is 11 minutes. Commuting methods vary: 96.6% of residents travel by personal vehicle and 1.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
11 min
0.0% year-over-year change
Means of transportation
Value Percent YoY change
Car 11,965 96.6% -4.1%
Bus or trolleybus 266 2.2% -13.9%
Bicycle 7 0.1% 75.0%
Walk 149 1.2% -10.8%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Plum by zipcode?

Zipcode Population Number of households Median income Average income
15239 21,410 8,493 $101,045 $121,004
15139 6,702 3,219 $92,782 $130,134
15068 36,203 16,821 $63,426 $85,982
15147 15,798 7,371 $66,757 $81,886

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FAQs about Plum demographics 

What is the total population of Plum?

Plum has a total population of 31,275 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.4% compared to a year ago.

What is the gender ratio in Plum?

The gender ratio in Plum is as follows:
  • 51.6% males (16,131 residents)
  • 48.4% females (15,144 residents)

What is the median age in Plum?

The median age in Plum is 45.

What is the age distribution of the population in Plum?

The age distribution in Plum is as follows:
  • Under 15: 16.8% (5,261 residents)
  • Ages 15-24: 8.9% (2,778 residents)
  • Ages 25-44: 24.6% (7,697 residents)
  • Ages 45-64: 26.9% (8,414 residents)
  • Over 65: 22.8% (7,126 residents)

What is the racial and ethnic makeup of Plum?

The racial and ethnic makeup of Plum is as follows:
  • White: 87.8% (27,468 residents)
  • Black or African American: 6.4% (2,009 residents)
  • American Indian and Alaska Native: 0.1% (37 residents)
  • Asian: 1% (320 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (15 residents)
  • Two or More Races: 3.7% (1,161 residents)
  • Other: 0.8% (264 residents)

What percentage of the population in Plum are U.S.-born citizens?

U.S.-born citizens represent 97.3% of the population in Plum.

How many housing units are there in Plum?

There are 14,353 housing units in Plum, reflecting a +1.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Plum and what is the average household size?

Plum has a total of 13,228 households, with an average of 2 people in each.

What is the median household income in Plum?

Plum has a median household income of $79,770, representing a +3.9% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Plum?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 82.2% (13,373 residents)
  • Blue-collar workers: 17.8% (2,886 residents)

Places of employment:
  • Self-employed: 7.5% (1,222 residents)
  • Private companies: 69% (11,223 residents)
  • Governmental workers: 9.8% (1,590 residents)
  • Not-for-profit companies: 13.7% (2,225 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025