Jefferson County, PA demographics:
population, income, and more

Total population
43,864
-0.5% year-over-year change
Median household income
$58,686/yr
3.1% year-over-year change
Housing units
22,085
0.1% year-over-year change

Jefferson County population

How many people live in Jefferson County

Jefferson County is home to 43,864 residents, according to the most recent Census data. Gender-wise, 50.2% of Jefferson County locals are male, and 49.8% are female.

Total population
43,864
-0.5% year-over-year change
Gender ratio
Male
50.2%
22,034
Female
49.8%
21,830
Value Percent YoY change
Male 22,034 50.2% -0.2%
Female 21,830 49.8% -0.9%
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 Jefferson County is 44, with the population distributed as follows: about 17.4% are children under 15, then 11.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 22.6% of the population, while another 26.7% fall into the 45 to 64 bracket. Finally, around 22.2% are 65 or older.

Median age
44
Age breakdown
Under 15
17.4%
15 to 24
11.1%
25 to 44
22.6%
45 to 64
26.7%
Over 65
22.2%
Value Percent YoY change
Under 15 7,634 17.4% -1.2%
15 to 24 4,854 11.1% -0.4%
25 to 44 9,896 22.6% -0.6%
45 to 64 11,723 26.7% -2.0%
Over 65 9,757 22.2% 1.9%
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 Jefferson County, 99.1% of the population are US-born citizens, while 0.6% have gained naturalized citizenship. At the same time, 0.3% of residents are non-citizens. As for race, 95.9% of locals are Caucasian, 0.4% are African American and 0.3% have Asian roots. There’s also a share of 3% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.1%
Non-U.S.-born citizens
0.6%
Non-citizens
0.3%
Value Percent YoY change
U.S.-born citizens 43,465 99.1% -0.6%
Non-U.S.-born citizens 271 0.6% 16.3%
Non-citizens 128 0.3% -2.3%
Racial breakdown
White
95.9%
Black or African American
0.4%
American Indian and Alaska Native
0.1%
Asian
0.3%
Native Hawaiian and other Pacific Islander
0%
Two or more races
3%
Other
0.4%
Value Percent
White 42,057 95.9%
Black or African American 157 0.4%
American Indian and Alaska Native 26 0.1%
Asian 121 0.3%
Two or more races 1,316 3%
Other 187 0.4%

Households in Jefferson County

A peek inside Jefferson County households

Jefferson County has 18,344 households, with an average of 2 members in each. Of these, 64.2% are families, while the remaining 35.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
18,344
0.8% year-over-year change
Average people per household
2
Non-family households
6,559
Family households
11,785
Value Percent YoY change
Non-family households 6,559 35.8% -2.1%
Family households 11,785 64.2% 2.4%
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 Jefferson County

The housing landscape of Jefferson County

Jefferson County's housing consists of 22,085 units, with 78.1% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.1% 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 7.7% of the housing landscape.

Housing units
22,085
0.1% year-over-year change
Housing types
Value Percent
1 unit, detached 17,253 78.1%
1 unit, attached 251 1.1%
2 units 1,037 4.7%
3 or 4 units 686 3.1%
5 to 9 units 407 1.8%
10 to 19 units 185 0.8%
20 to 49 units 246 1.1%
50 or more units 297 1.3%
Mobile home 1,692 7.7%
Boat, RV, van, etc. 31 0.1%
Homes built since 2020
108
125.0% year-over-year change

The age of buildings in Jefferson County

In Jefferson County, the median construction year is 1961. About 31.5% of homes were built before the 1940s, with another 7.5% going up by 1949. Most development happened in the second half of the 20th century. Then, 6.6% of homes were added from 2000 to 2009, 3.4% between 2010 and 2019, and 0.5% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 6,950 31.5% 2.7%
Built between 1940 and 1949 1,659 7.5% 9.7%
Built between 1950 and 1959 2,253 10.2% -3.4%
Built between 1960 and 1969 1,884 8.5% 8.5%
Built between 1970 and 1979 3,344 15.1% -2.0%
Built between 1980 and 1989 2,130 9.6% -5.1%
Built between 1990 and 1999 1,537 7% -10.8%
Built between 2000 and 2009 1,462 6.6% -2.6%
Built between 2010 and 2019 758 3.4% -1.9%
Built in 2020 or later 108 0.5% 125.0%
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.

Jefferson County occupancy rates

Out of the 18,344 occupied housing units in Jefferson County, 74.9% are owner-occupied, while 25.1% are lived in by tenants. Meanwhile, 16.9% of all homes on the local market sit vacant.

Occupied housing units
18,344
0.8% year-over-year change
Occupancy breakdown
Renter occupied
4,602
Owner occupied
13,742
Value Percent YoY
change
Renter occupied 4,602 25.1% -2.2%
Owner occupied 13,742 74.9% 1.8%
Unoccupied housing units
16.9%
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.

Jefferson County housing costs

Housing costs in Jefferson County come to a median of $694 per month, while tenants specifically pay a median gross rent of $750.

Median housing costs per month
$694/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 Jefferson County
$750/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 Jefferson County

Jefferson County education at a glance

About 55.4% of the population in Jefferson County went to high school, while 13.8% pursued college studies. Another 10% earned an associate degree and 11.9% hold a bachelor’s. Meanwhile, 5.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1,221 3.5% -5.9%
High school diploma 19,094 55.4% -3.3%
College diploma 4,758 13.8% 3.9%
Associate degree 3,453 10% 5.4%
Bachelor's degree 4,112 11.9% 4.7%
Graduate degree 1,861 5.4% 2.2%
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 Jefferson County

How much people earn in Jefferson County

The average annual household income in Jefferson County was $76,614 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.8% change from the previous year. At the same time, the median income stood at $58,686, reflecting a +3.1% shift over the same period.

Average household income in Jefferson County
$76,614/year
4.8% year-over-year change
Median household income in Jefferson County
$58,686/year
3.1% year-over-year change

Jefferson County income by age

In Jefferson County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $71,374. Those with someone between 45 and 64 in charge, often well established professionally, earn $72,776 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $43,068, while those led by someone over 65, many of whom may be retired, have about $42,065 in earnings. Overall, 86.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $43,068 15.7%
25 - 44 $71,374 5.2%
45 - 64 $72,776 4.7%
Over 65 $42,065 4.1%
Above poverty level
36,651
Below poverty level
5,910
Value Percent YoY
change
Above poverty level 36,651 86.1% 0.8%
Below poverty level 5,910 13.9% -7.8%

Employment in Jefferson County

Workforce and job types in Jefferson County

The job market in Jefferson County is powered by 19,746 working residents, spread across a range of industries and roles. 64.2% of the working population are employed in professional or administrative positions, while 35.8% are in hands-on or service-based jobs. Also, 9.9% run their own businesses, 69% are employed by private companies, and 11.6% work in the public sector.

Workforce demographics

Working population
19,746
2.2% year-over-year change
White collar
12,683
Blue collar
7,063
Value Percent YoY change
White collar 12,683 64.2% 3.9%
Blue collar 7,063 35.8% -0.7%
Employer type
Self employees
9.9%
Private companies
69%
Governmental workers
11.6%
Not for profit companies
9.5%
Value Percent YoY change
Self employees 1,962 9.9% 4.5%
Private companies 13,631 69% 0.5%
Governmental workers 2,283 11.6% 7.3%
Not for profit companies 1,870 9.5% 6.7%
Unemployment rate
4.2%
-10.6% year-over-year change

Available workforce

The unemployment rate in Jefferson County stands at 4.2%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Jefferson County

How people get around in Jefferson County

Commuting methods vary: 89% of residents travel by personal vehicle and 3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 17,248 89% 1.9%
Taxicab 6 0% 0.0%
Bus or trolleybus 32 0.2% -62.4%
Railroad 10 0% 11.1%
Motorcycle 7 0% 16.7%
Bicycle 11 0.1% -75.6%
Walk 591 3% -8.8%
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 Jefferson County by zipcode?

Zipcode Population Number of households Median income Average income
15711 322 133 $47,083 $57,650
15715 505 234 $60,625 $66,136
15764 178 71 $66,250 $116,224
15767 13,918 5,943 $50,589 $72,508
15770 188 85 $43,250 $61,247
15776 29 21 $25,625 $43,252
15778 367 66 $72,500 $87,221
15730 142 69 $66,696 $125,929
15733 71 37 $0 $59,465
15744 44 18 $111,875 $101,511

Find your place

Explore more communities

FAQs about Jefferson County demographics 

What is the total population of Jefferson County?

Jefferson County has a total population of 43,864 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 -0.5% compared to a year ago.

What is the gender ratio in Jefferson County?

The gender ratio in Jefferson County is as follows:
  • 50.2% males (22,034 residents)
  • 49.8% females (21,830 residents)

What is the median age in Jefferson County?

The median age in Jefferson County is 44.

What is the age distribution of the population in Jefferson County?

The age distribution in Jefferson County is as follows:
  • Under 15: 17.4% (7,634 residents)
  • Ages 15-24: 11.1% (4,854 residents)
  • Ages 25-44: 22.6% (9,896 residents)
  • Ages 45-64: 26.7% (11,723 residents)
  • Over 65: 22.2% (9,757 residents)

What is the racial and ethnic makeup of Jefferson County?

The racial and ethnic makeup of Jefferson County is as follows:
  • White: 95.9% (42,057 residents)
  • Black or African American: 0.4% (157 residents)
  • American Indian and Alaska Native: 0.1% (26 residents)
  • Asian: 0.3% (121 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 3% (1,316 residents)
  • Other: 0.4% (187 residents)

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

U.S.-born citizens represent 99.1% of the population in Jefferson County.

How many housing units are there in Jefferson County?

There are 22,085 housing units in Jefferson County, reflecting a +0.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Jefferson County has a total of 18,344 households, with an average of 2 people in each.

What is the median household income in Jefferson County?

Jefferson County has a median household income of $58,686, representing a +3.1% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Jefferson County?

The employment rate is 95.8% in Jefferson County, with a workforce of 19,746 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 64.2% (12,683 residents)
  • Blue-collar workers: 35.8% (7,063 residents)

Places of employment:
  • Self-employed: 9.9% (1,962 residents)
  • Private companies: 69% (13,631 residents)
  • Governmental workers: 11.6% (2,283 residents)
  • Not-for-profit companies: 9.5% (1,870 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