Marengo city, Iowa Demographics & Population 2026

Population Overview

Marengo city is a small community located in Iowa. The total population is 2,823. It ranks as the 127th most populous out of 1,018 cities and towns in Iowa.

Age Demographics

The median age in Marengo city is 38.4 years. This is about average than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Marengo city is $58,125. This is 21% lower than the state median of $73,147. Compared to the national median of $78,538, household income here is 26% lower. The poverty rate stands at 12.8%. This is 16% higher than the state poverty rate of 11.0%. The unemployment rate is 3.8%. This is 4% higher than the state rate of 3.6%. The median home value is $114,100. Housing costs are 42% lower than the state median of $195,900. With a home-value-to-income ratio of just 2.0x, Marengo city is one of the most affordable housing markets in the area. 67.4% of occupied housing units are owner-occupied. This homeownership rate is 6% lower than the state average of 71.5%.

Race & Ethnicity

Marengo city has a predominantly White (non-Hispanic) population, comprising 93.5% of all residents. Hispanic or Latino residents account for 1.9%. The Black or African American population (1.6%) is well below the state average of 3.8%. The Hispanic or Latino population (1.9%) is well below the state average of 7.0%.

Education

12.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 59% lower than the state rate of 30.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.8%.

Data Sources & Methodology

All demographic data for Marengo city, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,018 Census-designated places in Iowa. For official data, visit data.census.gov.