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Lanark, IL

City in Carroll County, Illinois.

Population

1,541

Land area

1.1sq mi

People per sq mi

1,375

ZIP codes

0

Lanark and its ZIP codes

Lanark at a glance

  • Lanark is about 6 times as dense as Illinois as a whole.
  • Households here earn a median of $59,375 a year, 29% less than the Illinois figure of $83,390.
  • A typical owner-occupied home is valued at $96,600 (63% below Illinois) and median rent is $819 a month.

Local data for Lanark, IL

Counts from official public data

Housing and community stats

Lanark, IL, American Community Survey 2020-2024

Full profile

Median household income

$59,375

Poverty rate

12.7%

Median home value

$96,600

Median rent

$819/mo

Homeownership

78.6%

Bachelor's or higher

14.5%

Median age

38.4

Average commute

24.9 min

Largest reported origins and ancestries: German Americans (549), Irish Americans (171), Dutch Americans (50).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Carroll County. PPP loans are for Lanark.

Details

Unemployment rate

3.4%

Aug 2026, -1.3 pts in a year

Average annual pay

$51,869

4,081 jobs, 2025

Income per person

$54,171

BEA, 2024

Federal spending

$121M

FY 2026, $7,688 per person

Carroll County economyFederal spending

How people get to work

Lanark, IL, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone86.1%
  • Carpooled5.9%
  • Public transit0.9%
  • Walked3.0%
  • Bicycle0.0%
  • Taxi, ride-hailing, motorcycle or other0.5%
  • Worked from home3.6%

Average one-way commute: 24.9 minutes for people who do not work from home.

Environment and hazard risk

Lanark, IL, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: drought

Storm events since 1996

545

Countywide, mostly thunderstorm wind

Flood insurance policies

15

0.1% of homes, county

July high / Jan low

85° / 11°F

40.3 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Lanark, IL, CDC PLACES estimates

All 40 measures

Obesity

38.9%

U.S. 33.3% +5.6 pts

Diabetes

12.4%

U.S. 12.1% about the same

Smoking

15.0%

U.S. 12.8% +2.2 pts

Uninsured (18-64)

7.0%

U.S. 11.1% -4.1 pts

Cities near Lanark

Frequently asked questions

What county is Lanark, IL in?
Lanark is in Carroll County, Illinois.
What is the population of Lanark, IL?
About 1,541 people live in Lanark, based on American Community Survey 5-year estimates.
What cities are near Lanark?
Nearby places include Lake Carroll (4.7 mi), Shannon (6 mi), Chadwick (6.5 mi), Mount Carroll (7.5 mi), Milledgeville (9.8 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023