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Lanark, Illinois

City in Carroll County, Illinois · ZIP 61046

  • Carroll County
  • Within Rock Creek-Lima Township
  • Census data · ACS 2019-2023
  • 1 public schools
Join LanarkAsk LanarkBusinessesPeople
  • 1,463 (2024 estimate)Population
  • 642Households
  • $66,250Median household income
  • $97,100Median home value
  • 1Public schools
  • 1ZIP codes

About Lanark

This page shows only what has been published about Lanark: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−5.1%
1.5k1.5k1.6k1.6k2000: 1,58420002010: 1,45720102020: 1,50420201,5841,504
Population of Lanark at each census
CensusPopulation
20001,584
20101,457
20201,504

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 17, retrieved November 14, 2026.

Household income in Lanark
Under $50k42.4%
$50k to $100k24%
$100k to $150k24%
$150k to $200k7.2%
$200k and over2.5%

Median household income $66,250 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 17, retrieved November 14, 2026.

Housing tenure in Lanark
Owner occupied
520 units
Renter occupied
122 units
Vacancy rate
13%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

Lanark compared with its county and state
Lanark compared with its county and state, American Community Survey 2019-2023
MeasureLanarkCarroll CountyIllinois
Population1,51015,62112,692,653
Median household income$66,250$60,871$81,702
Median age36.944.938.9
Median home value$97,100$113,500$250,500
Bachelor’s degree or higher13.6%18.2%37.2%
Foreign-born residents0.0%1.5%14.4%
Owner-occupied homes81.0%77.8%66.8%
Mean commute to work24.8 minutes22.2 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

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Schools

Public schools in Lanark1
Public schools in Lanark, NCES directory 2023–2024
SchoolTypeGradesDistrict
Eastland Jr/Sr High SchoolPublic6–12Eastland CUSD 308

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Frequently asked about LanarkPromoted from questions people asked

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Nearby towns

Other towns in Carroll County

All towns in Carroll County