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Marengo, Iowa

City in Iowa County, Iowa · ZIP 52301

  • Iowa County
  • Census data · ACS 2019-2023
  • 2 public schools
  • 2,415 (2024 estimate)Population
  • 1,152Households
  • $58,125Median household income
  • $114,100Median home value
  • 2Public schools
  • 1ZIP codes

About Marengo

This page shows only what has been published about Marengo: 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 2020−3.9%
2.4k2.5k2.5k2.6k2000: 2,53520002010: 2,52820102020: 2,43520202,5352,435
Population of Marengo at each census
CensusPopulation
20002,535
20102,528
20202,435

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 19, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 19, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 19, retrieved November 14, 2026.

Household income in Marengo
Under $50k42.1%
$50k to $100k37%
$100k to $150k14.5%
$150k to $200k5.1%
$200k and over1.3%

Median household income $58,125 · 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 19, retrieved November 14, 2026.

Housing tenure in Marengo
Owner occupied
776 units
Renter occupied
376 units
Vacancy rate
6.6%

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 19, retrieved November 14, 2026.

Marengo compared with its county and state
Marengo compared with its county and state, American Community Survey 2019-2023
MeasureMarengoIowa CountyIowa
Population2,82316,5473,195,937
Median household income$58,125$72,185$73,147
Median age38.442.238.6
Median home value$114,100$189,800$195,900
Bachelor’s degree or higher12.6%24.2%30.9%
Foreign-born residents1.7%0.9%5.7%
Owner-occupied homes67.4%76.1%71.5%
Mean commute to work20.5 minutes21.7 minutes19.8 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 19, retrieved November 14, 2026.

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Schools

Public schools in Marengo2
Public schools in Marengo, NCES directory 2023–2024
SchoolTypeGradesDistrict
Iowa Valley Elementary SchoolPublicPre-K–6Iowa Valley Comm School District
Iowa Valley Jr-Sr High SchoolPublic7–12Iowa Valley Comm School District

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 MarengoPromoted from questions people asked

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Nearby towns

Other towns in Iowa County

All towns in Iowa County