Mount Auburn, Iowa Demographics & Population 2026

A note before these figures: with a population of 172, Mount Auburn's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Mount Auburn is a small community located in Iowa, within Benton County. The total population is 172. It ranks as the 733rd most populous out of 1,017 Census-designated places in Iowa.

Age Demographics

The median age in Mount Auburn is 37.3 years. This is 3% lower than the state median of 38.6 years. With 30.2% of the population under 18, Mount Auburn has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Mount Auburn is $79,000. This is 5% higher than the state median of $75,059. It is also 2% lower than the national median of $80,734. The poverty rate stands at 11.6%. This is 5% higher than the state poverty rate of 11.1%. The unemployment rate is 8.2%. This is 130% higher than the state rate of 3.6%. The median home value is $125,000. Housing costs are 40% lower than the state median of $208,000. With a home-value-to-income ratio of just 1.6x, Mount Auburn is one of the most affordable housing markets in the area. 75.9% of occupied housing units are owner-occupied. This homeownership rate is 6% higher than the state average of 71.7%.

Race & Ethnicity

The largest racial or ethnic group in Mount Auburn is White (non-Hispanic), making up 84.9% of the population. Hispanic or Latino residents account for 12.8%. The Hispanic or Latino population is significantly higher than the state average (12.8% vs 7.3%).

Education

4.1% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 87% lower than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 88.8%.

Data Sources & Methodology

All demographic data for Mount Auburn, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,017 Census-designated places in Iowa. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.