Lanark, IL demographics:
population, income, and more

Total population
1,541
2.0% year-over-year change
Median household income
$59,375/yr
-10.4% year-over-year change
Housing units
814
10.3% year-over-year change

Lanark population

How many people live in Lanark

Lanark is home to 1,541 residents, according to the most recent Census data. Gender-wise, 53.1% of Lanark locals are male, and 46.9% are female.

Total population
1,541
2.0% year-over-year change
Gender ratio
Male
53.1%
818
Female
46.9%
723
Value Percent YoY change
Male 818 53.1% 2.0%
Female 723 46.9% 2.1%
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 Lanark is 38, with the population distributed as follows: about 23% are children under 15, then 14% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.2% of the population, while another 18.2% fall into the 45 to 64 bracket. Finally, around 21.5% are 65 or older.

Median age
38.4
Age breakdown
Under 15
23%
15 to 24
14%
25 to 44
23.2%
45 to 64
18.2%
Over 65
21.5%
Value Percent YoY change
Under 15 355 23% 0.6%
15 to 24 215 14% 3.4%
25 to 44 358 23.2% -1.1%
45 to 64 281 18.2% -3.8%
Over 65 332 21.5% 12.5%
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 Lanark, 99.7% of the population are US-born citizens, while 0.3% have gained naturalized citizenship. There’s also a share of 4.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.7%
Non-U.S.-born citizens
0.3%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 1,537 99.7% 1.8%
Non-U.S.-born citizens 4 0.3% N/A
Racial breakdown
White
95.2%
Black or African American
0.3%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.1%
Other
0.4%
Value Percent
White 1,467 95.2%
Black or African American 5 0.3%
Two or more races 63 4.1%
Other 6 0.4%

Households in Lanark

A peek inside Lanark households

Lanark has 702 households, with an average of 2 members in each. Of these, 65.1% are families, while the remaining 34.9% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
702
9.3% year-over-year change
Average people per household
2
Non-family households
245
Family households
457
Value Percent YoY change
Non-family households 245 34.9% 17.8%
Family households 457 65.1% 5.3%
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 Lanark

The housing landscape of Lanark

Lanark's housing consists of 814 units, with 88.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.5% 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 0.9% of the housing landscape.

Housing units
814
10.3% year-over-year change
Housing types
Value Percent
1 unit, detached 721 88.6%
1 unit, attached 12 1.5%
2 units 15 1.8%
3 or 4 units 10 1.2%
5 to 9 units 42 5.2%
10 to 19 units 7 0.9%
Mobile home 7 0.9%
Homes built since 2020
0
% year-over-year change

The age of buildings in Lanark

In Lanark, the median construction year is 1943. About 46.1% of homes were built before the 1940s, with another 12.5% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 375 46.1% 10.0%
Built between 1940 and 1949 102 12.5% 27.5%
Built between 1950 and 1959 117 14.4% 1.7%
Built between 1960 and 1969 73 9% 12.3%
Built between 1970 and 1979 28 3.4% -28.2%
Built between 1980 and 1989 68 8.4% 21.4%
Built between 1990 and 1999 17 2.1% 6.2%
Built between 2000 and 2009 34 4.2% 30.8%
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.

Lanark occupancy rates

Out of the 702 occupied housing units in Lanark, 78.6% are owner-occupied, while 21.4% are lived in by tenants. Meanwhile, 13.8% of all homes on the local market sit vacant.

Occupied housing units
702
9.3% year-over-year change
Occupancy breakdown
Renter occupied
150
Owner occupied
552
Value Percent YoY
change
Renter occupied 150 21.4% 22.9%
Owner occupied 552 78.6% 6.2%
Unoccupied housing units
13.8%
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.

Lanark housing costs

Housing costs in Lanark come to a median of $657 per month, while tenants specifically pay a median gross rent of $819.

Median housing costs per month
$657/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 Lanark
$819/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 Lanark

Lanark education at a glance

About 42.3% of the population in Lanark went to high school, while 27.5% pursued college studies. Another 16.8% earned an associate degree and 10% hold a bachelor’s. Meanwhile, 3.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 2 0.2% 0.0%
High school diploma 493 42.3% 2.1%
College diploma 321 27.5% 3.2%
Associate degree 196 16.8% -3.9%
Bachelor's degree 116 10% 18.4%
Graduate degree 38 3.3% -9.5%
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 Lanark

How much people earn in Lanark

The average annual household income in Lanark was $79,076 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -1.1% change from the previous year. At the same time, the median income stood at $59,375, reflecting a -10.4% shift over the same period.

Average household income in Lanark
$79,076/year
-1.1% year-over-year change
Median household income in Lanark
$59,375/year
-10.4% year-over-year change

Lanark income by age

In Lanark, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $95,139. Those with someone between 45 and 64 in charge, often well established professionally, earn $105,625 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $39,965, while those led by someone over 65, many of whom may be retired, have about $40,625 in earnings. Overall, 87.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $39,965 6.7%
25 - 44 $95,139 0.6%
45 - 64 $105,625 5.3%
Over 65 $40,625 -15.2%
Above poverty level
1,323
Below poverty level
193
Value Percent YoY
change
Above poverty level 1,323 87.3% 5.3%
Below poverty level 193 12.7% -9.4%

Average renter income in Lanark

To get a better sense of what renters earn on average in Lanark, their median household income was $38,400 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 25.6%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$38,400
Rent-to-income ratio
25.6%
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 Lanark

Workforce and job types in Lanark

The job market in Lanark is powered by 795 working residents, spread across a range of industries and roles. 56.7% of the working population are employed in professional or administrative positions, while 43.3% are in hands-on or service-based jobs. Also, 9.1% run their own businesses, 66.5% are employed by private companies, and 11.7% work in the public sector.

Workforce demographics

Working population
795
2.3% year-over-year change
White collar
451
Blue collar
344
Value Percent YoY change
White collar 451 56.7% -1.3%
Blue collar 344 43.3% 7.5%
Employer type
Self employees
9.1%
Private companies
66.5%
Governmental workers
11.7%
Not for profit companies
12.7%
Value Percent YoY change
Self employees 72 9.1% 2.9%
Private companies 529 66.5% 5.8%
Governmental workers 93 11.7% -18.4%
Not for profit companies 101 12.7% 8.6%
Unemployment rate
2.3%
-17.4% year-over-year change

Available workforce

The unemployment rate in Lanark stands at 2.3%, 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 Lanark

How people get around in Lanark

Commuting methods vary: 92% 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 734 92% 0.3%
Bus or trolleybus 7 0.9% 16.7%
Motorcycle 4 0.5% 33.3%
Walk 24 3% 14.3%
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 Lanark by zipcode?

Zipcode Population Number of households Median income Average income
61046 2,794 1,271 $79,398 $104,389

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FAQs about Lanark demographics 

What is the total population of Lanark?

Lanark has a total population of 1,541 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 +2.0% compared to a year ago.

What is the gender ratio in Lanark?

The gender ratio in Lanark is as follows:
  • 53.1% males (818 residents)
  • 46.9% females (723 residents)

What is the median age in Lanark?

The median age in Lanark is 38.4.

What is the age distribution of the population in Lanark?

The age distribution in Lanark is as follows:
  • Under 15: 23% (355 residents)
  • Ages 15-24: 14% (215 residents)
  • Ages 25-44: 23.2% (358 residents)
  • Ages 45-64: 18.2% (281 residents)
  • Over 65: 21.5% (332 residents)

What is the racial and ethnic makeup of Lanark?

The racial and ethnic makeup of Lanark is as follows:
  • White: 95.2% (1,467 residents)
  • Black or African American: 0.3% (5 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 4.1% (63 residents)
  • Other: 0.4% (6 residents)

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

U.S.-born citizens represent 99.7% of the population in Lanark.

How many housing units are there in Lanark?

There are 814 housing units in Lanark, reflecting a +10.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Lanark has a total of 702 households, with an average of 2 people in each.

What is the median household income in Lanark?

Lanark has a median household income of $59,375, representing a -10.4% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Lanark?

The employment rate is 97.7% in Lanark, with a workforce of 795 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 56.7% (451 residents)
  • Blue-collar workers: 43.3% (344 residents)

Places of employment:
  • Self-employed: 9.1% (72 residents)
  • Private companies: 66.5% (529 residents)
  • Governmental workers: 11.7% (93 residents)
  • Not-for-profit companies: 12.7% (101 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