Derby city, Iowa Demographics & Population 2026

Population Overview

Derby city is a small community located in Iowa. The total population is 106. It ranks as the 849th most populous out of 1,018 cities and towns in Iowa.

Age Demographics

The median age in Derby city is 38.8 years. This is about average than the state median of 38.6 years. With 34.9% of the population under 18, Derby city has a notably young demographic profile, suggesting a family-oriented community. 12.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Derby city is $58,750. This is 20% lower than the state median of $73,147. Compared to the national median of $78,538, household income here is 25% lower. The poverty rate stands at 34.0%. This is 209% higher than the state poverty rate of 11.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.6%. The median home value is $73,800. Housing costs are 62% lower than the state median of $195,900. With a home-value-to-income ratio of just 1.3x, Derby city is one of the most affordable housing markets in the area. 94.3% of occupied housing units are owner-occupied. This homeownership rate is 32% higher than the state average of 71.5%.

Race & Ethnicity

Derby city has a predominantly White (non-Hispanic) population, comprising 99.1% of all residents.

Education

1.5% 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 95% 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 71.0%.

Data Sources & Methodology

All demographic data for Derby 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.