Deep River, Iowa Demographics & Population 2026

A note before these figures: with a population of 335, Deep River'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

Deep River is a small community located in Iowa, within Poweshiek County. The total population is 335. It ranks as the 578th most populous out of 1,017 Census-designated places in Iowa.

Age Demographics

The median age in Deep River is 34.6 years. This is 10% lower than the state median of 38.6 years. With 33.1% of the population under 18, Deep River has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Deep River is $83,125. This is 11% higher than the state median of $75,059. It is also 3% higher than the national median of $80,734. The poverty rate stands at 3.6%. This is 68% lower than the state poverty rate of 11.1%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.7%. This is 82% lower than the state rate of 3.6%. The median home value is $95,200. Housing costs are 54% lower than the state median of $208,000. With a home-value-to-income ratio of just 1.1x, Deep River is one of the most affordable housing markets in the area. 84.6% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 71.7%.

Race & Ethnicity

Deep River has a predominantly White (non-Hispanic) population, comprising 98.2% of all residents. Asian residents account for 0.3%. The Asian population (0.3%) is well below the state average of 2.5%.

Education

5.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 82% 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 94.5%.

Data Sources & Methodology

All demographic data for Deep River, 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.