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Andover, Henry County, Illinois

Village in Henry County, Illinois · ZIP 61233, 61238, 61262

  • Henry County
  • Within Andover Township
  • Census data · ACS 2019-2023
Join AndoverAsk AndoverBusinessesPeople
  • 539 (2024 estimate)Population
  • 185Households
  • $68,281Median household income
  • $139,600Median home value
  • 3ZIP codes

About Andover

This page shows only what has been published about Andover: 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 2020−6.6%
5405605806002000: 59420002010: 57820102020: 5552020594555
Population of Andover at each census
CensusPopulation
2000594
2010578
2020555

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 Andover
Under $50k35.1%
$50k to $100k41.1%
$100k to $150k10.3%
$150k to $200k13.5%
$200k and over0%

Median household income $68,281 · 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 Andover
Owner occupied
148 units
Renter occupied
37 units
Vacancy rate
0%

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.

Andover compared with its county and state
Andover compared with its county and state, American Community Survey 2019-2023
MeasureAndoverHenry CountyIllinois
Population42548,94812,692,653
Median household income$68,281$69,912$81,702
Median age45.343.438.9
Median home value$139,600$145,300$250,500
Bachelor’s degree or higher20.3%24.3%37.2%
Foreign-born residents1.2%1.6%14.4%
Owner-occupied homes80.0%80.4%66.8%
Mean commute to work28.2 minutes22.6 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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Nearby towns

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Other places named Andover in Illinois