Greenville, Iowa Demographics & Population 2026

A note before these figures: with a population of 62, Greenville'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

Greenville is a small community located in Iowa, within Clay County. The total population is 62. It ranks as the 920th most populous out of 1,017 Census-designated places in Iowa.

Age Demographics

The median age in Greenville is 30.5 years. This is 21% lower than the state median of 38.6 years. With 29.0% of the population under 18, Greenville has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Greenville is $44,531. This is 41% lower than the state median of $75,059. It is also 45% lower than the national median of $80,734. The ACS records no residents below the poverty line in Greenville. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The unemployment rate is 2.7%. This is 25% lower than the state rate of 3.6%. The median home value is $90,500. Housing costs are 56% lower than the state median of $208,000. With a home-value-to-income ratio of just 2.0x, Greenville is one of the most affordable housing markets in the area. 92.6% of occupied housing units are owner-occupied. This homeownership rate is 29% higher than the state average of 71.7%.

Race & Ethnicity

Greenville has a predominantly White (non-Hispanic) population, comprising 90.3% of all residents. Hispanic or Latino residents account for 3.2%. The Hispanic or Latino population (3.2%) is well below the state average of 7.3%.

Education

5.1% 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 84% 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 89.7%.

Data Sources & Methodology

All demographic data for Greenville, 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.