Duncombe city, Iowa Demographics & Population 2026

Population Overview

Duncombe city is a small community located in Iowa. The total population is 382. It ranks as the 544th most populous out of 1,018 cities and towns in Iowa.

Age Demographics

The median age in Duncombe city is 29.2 years. This is 24% lower than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Duncombe city is $63,125. This is 14% lower than the state median of $73,147. Compared to the national median of $78,538, household income here is 20% lower. The poverty rate stands at 6.8%. This is 38% lower than the state poverty rate of 11.0%. The unemployment rate is 6.9%. This is 90% higher than the state rate of 3.6%. The median home value is $108,200. Housing costs are 45% lower than the state median of $195,900. With a home-value-to-income ratio of just 1.7x, Duncombe city is one of the most affordable housing markets in the area. 57.1% of occupied housing units are owner-occupied. This homeownership rate is 20% lower than the state average of 71.5%.

Race & Ethnicity

Duncombe city has a predominantly White (non-Hispanic) population, comprising 93.7% of all residents. Asian residents account for 1.8%. The Hispanic or Latino population (1.3%) is well below the state average of 7.0%.

Education

9.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 71% 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 90.1%.

Data Sources & Methodology

All demographic data for Duncombe 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.