Franklin County, IL demographics:
population, income, and more

Total population
37,323
-0.6% year-over-year change
Median household income
$56,740/yr
6.1% year-over-year change
Housing units
18,462
-0.0% year-over-year change

Franklin County population

How many people live in Franklin County

Franklin County is home to 37,323 residents, according to the most recent Census data. Gender-wise, 49.7% of Franklin County locals are male, and 50.3% are female.

Total population
37,323
-0.6% year-over-year change
Gender ratio
Male
49.7%
18,540
Female
50.3%
18,783
Value Percent YoY change
Male 18,540 49.7% -0.8%
Female 18,783 50.3% -0.4%
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 Franklin County is 43, with the population distributed as follows: about 18.1% are children under 15, then 11.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.1% of the population, while another 26.8% fall into the 45 to 64 bracket. Finally, around 21% are 65 or older.

Median age
43.4
Age breakdown
Under 15
18.1%
15 to 24
11.1%
25 to 44
23.1%
45 to 64
26.8%
Over 65
21%
Value Percent YoY change
Under 15 6,746 18.1% -0.8%
15 to 24 4,144 11.1% -1.2%
25 to 44 8,611 23.1% -0.1%
45 to 64 9,987 26.8% -1.4%
Over 65 7,835 21% 0.5%
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 Franklin County, 98.2% of the population are US-born citizens, while 1.2% have gained naturalized citizenship. At the same time, 0.6% of residents are non-citizens. As for race, 94.7% of locals are Caucasian, 0.4% are African American and 0.4% have Asian roots. There’s also a share of 4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.2%
Non-U.S.-born citizens
1.2%
Non-citizens
0.6%
Value Percent YoY change
U.S.-born citizens 36,651 98.2% -0.9%
Non-U.S.-born citizens 431 1.2% 32.6%
Non-citizens 241 0.6% 13.2%
Racial breakdown
White
94.7%
Black or African American
0.4%
American Indian and Alaska Native
0.1%
Asian
0.4%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4%
Other
0.5%
Value Percent
White 35,347 94.7%
Black or African American 154 0.4%
American Indian and Alaska Native 29 0.1%
Asian 131 0.4%
Two or more races 1,480 4%
Other 182 0.5%

Households in Franklin County

A peek inside Franklin County households

Franklin County has 16,137 households, with an average of 2 members in each. Of these, 62.5% are families, while the remaining 37.5% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
16,137
0.0% year-over-year change
Average people per household
2
Non-family households
6,046
Family households
10,091
Value Percent YoY change
Non-family households 6,046 37.5% -1.4%
Family households 10,091 62.5% 0.9%
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 Franklin County

The housing landscape of Franklin County

Franklin County's housing consists of 18,462 units, with 79.1% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.4% 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 10.3% of the housing landscape.

Housing units
18,462
-0.0% year-over-year change
Housing types
Value Percent
1 unit, detached 14,608 79.1%
1 unit, attached 256 1.4%
2 units 872 4.7%
3 or 4 units 389 2.1%
5 to 9 units 122 0.7%
10 to 19 units 65 0.4%
20 to 49 units 53 0.3%
50 or more units 165 0.9%
Mobile home 1,909 10.3%
Boat, RV, van, etc. 23 0.1%
Homes built since 2020
133
104.6% year-over-year change

The age of buildings in Franklin County

In Franklin County, the median construction year is 1963. About 22.9% of homes were built before the 1940s, with another 11% going up by 1949. Most development happened in the second half of the 20th century. Then, 8.4% of homes were added from 2000 to 2009, 5% between 2010 and 2019, and 0.7% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 4,222 22.9% 3.7%
Built between 1940 and 1949 2,026 11% 5.0%
Built between 1950 and 1959 2,351 12.7% 7.4%
Built between 1960 and 1969 2,003 10.8% -6.0%
Built between 1970 and 1979 2,370 12.8% -11.2%
Built between 1980 and 1989 1,383 7.5% -8.5%
Built between 1990 and 1999 1,505 8.2% -7.3%
Built between 2000 and 2009 1,554 8.4% 6.2%
Built between 2010 and 2019 915 5% 12.0%
Built in 2020 or later 133 0.7% 104.6%
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.

Franklin County occupancy rates

Out of the 16,137 occupied housing units in Franklin County, 74.1% are owner-occupied, while 25.9% are lived in by tenants. Meanwhile, 12.6% of all homes on the local market sit vacant.

Occupied housing units
16,137
0.0% year-over-year change
Occupancy breakdown
Renter occupied
4,175
Owner occupied
11,962
Value Percent YoY
change
Renter occupied 4,175 25.9% 2.6%
Owner occupied 11,962 74.1% -0.8%
Unoccupied housing units
12.6%
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.

Franklin County housing costs

Housing costs in Franklin County come to a median of $693 per month, while tenants specifically pay a median gross rent of $803.

Median housing costs per month
$693/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 Franklin County
$803/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 Franklin County

Franklin County education at a glance

About 41.5% of the population in Franklin County went to high school, while 26.7% pursued college studies. Another 13.1% earned an associate degree and 10.7% hold a bachelor’s. Meanwhile, 4.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 976 3.4% 18.7%
High school diploma 12,078 41.5% -0.8%
College diploma 7,772 26.7% 0.2%
Associate degree 3,822 13.1% 4.4%
Bachelor's degree 3,099 10.7% -8.4%
Graduate degree 1,336 4.6% -6.4%
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 Franklin County

How much people earn in Franklin County

The average annual household income in Franklin County was $72,759 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.2% change from the previous year. At the same time, the median income stood at $56,740, reflecting a +6.1% shift over the same period.

Average household income in Franklin County
$72,759/year
4.2% year-over-year change
Median household income in Franklin County
$56,740/year
6.1% year-over-year change

Franklin County income by age

In Franklin County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $59,852. Those with someone between 45 and 64 in charge, often well established professionally, earn $68,102 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $40,150, while those led by someone over 65, many of whom may be retired, have about $43,299 in earnings. Overall, 82.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $40,150 14.7%
25 - 44 $59,852 1.0%
45 - 64 $68,102 6.7%
Over 65 $43,299 3.3%
Above poverty level
29,883
Below poverty level
6,324
Value Percent YoY
change
Above poverty level 29,883 82.5% -0.9%
Below poverty level 6,324 17.5% 3.8%

Employment in Franklin County

Workforce and job types in Franklin County

The job market in Franklin County is powered by 15,593 working residents, spread across a range of industries and roles. 69.4% of the working population are employed in professional or administrative positions, while 30.6% are in hands-on or service-based jobs. Also, 9.5% run their own businesses, 65.1% are employed by private companies, and 16.8% work in the public sector.

Workforce demographics

Working population
15,593
-2.1% year-over-year change
White collar
10,823
Blue collar
4,770
Value Percent YoY change
White collar 10,823 69.4% -1.6%
Blue collar 4,770 30.6% -3.1%
Employer type
Self employees
9.5%
Private companies
65.1%
Governmental workers
16.8%
Not for profit companies
8.6%
Value Percent YoY change
Self employees 1,475 9.5% -7.9%
Private companies 10,151 65.1% -2.0%
Governmental workers 2,628 16.8% 2.9%
Not for profit companies 1,339 8.6% -4.9%
Unemployment rate
7.7%
17.3% year-over-year change

Available workforce

The unemployment rate in Franklin County stands at 7.7%, 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 Franklin County

How people get around in Franklin County

In Franklin County, the average commute time is 27 minutes. Commuting methods vary: 89.6% of residents travel by personal vehicle and 1.4% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
27 min
0.8% year-over-year change
Means of transportation
Value Percent YoY change
Car 13,720 89.6% -1.6%
Bus or trolleybus 50 0.3% -57.3%
Motorcycle 18 0.1% 200.0%
Bicycle 46 0.3% 12.2%
Walk 221 1.4% -7.9%
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 Franklin County by zipcode?

Zipcode Population Number of households Median income Average income
62819 247 111 $45,341 $55,998
62822 2,581 1,256 $47,770 $56,698
62825 254 125 $48,750 $60,667
62836 891 344 $73,281 $88,283
62812 11,611 4,921 $60,539 $78,574
62856 332 145 $60,750 $76,517
62860 384 177 $80,288 $70,336
62865 2,037 982 $67,798 $94,029
62874 440 188 $40,625 $51,456
62884 2,758 1,059 $58,679 $74,740

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FAQs about Franklin County demographics 

What is the total population of Franklin County?

Franklin County has a total population of 37,323 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 -0.6% compared to a year ago.

What is the gender ratio in Franklin County?

The gender ratio in Franklin County is as follows:
  • 49.7% males (18,540 residents)
  • 50.3% females (18,783 residents)

What is the median age in Franklin County?

The median age in Franklin County is 43.4.

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

The age distribution in Franklin County is as follows:
  • Under 15: 18.1% (6,746 residents)
  • Ages 15-24: 11.1% (4,144 residents)
  • Ages 25-44: 23.1% (8,611 residents)
  • Ages 45-64: 26.8% (9,987 residents)
  • Over 65: 21% (7,835 residents)

What is the racial and ethnic makeup of Franklin County?

The racial and ethnic makeup of Franklin County is as follows:
  • White: 94.7% (35,347 residents)
  • Black or African American: 0.4% (154 residents)
  • American Indian and Alaska Native: 0.1% (29 residents)
  • Asian: 0.4% (131 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 4% (1,480 residents)
  • Other: 0.5% (182 residents)

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

U.S.-born citizens represent 98.2% of the population in Franklin County.

How many housing units are there in Franklin County?

There are 18,462 housing units in Franklin County, reflecting a -0.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Franklin County has a total of 16,137 households, with an average of 2 people in each.

What is the median household income in Franklin County?

Franklin County has a median household income of $56,740, representing a +6.1% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 92.3% in Franklin County, with a workforce of 15,593 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 69.4% (10,823 residents)
  • Blue-collar workers: 30.6% (4,770 residents)

Places of employment:
  • Self-employed: 9.5% (1,475 residents)
  • Private companies: 65.1% (10,151 residents)
  • Governmental workers: 16.8% (2,628 residents)
  • Not-for-profit companies: 8.6% (1,339 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