Lambs Grove, Iowa Demographics & Population 2026

A note before these figures: with a population of 181, Lambs Grove'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

Lambs Grove is a small community located in Iowa, within Jasper County. The total population is 181. It ranks as the 717th most populous out of 1,017 Census-designated places in Iowa.

Age Demographics

The median age in Lambs Grove is 56.8 years. This is 47% higher than the state median of 38.6 years. Only 13.8% of residents are under 18, indicating fewer families with children. 17.1% 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 Lambs Grove is $93,750. This is 25% higher than the state median of $75,059. It is also 16% higher than the national median of $80,734. The ACS records no residents below the poverty line in Lambs Grove. 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 9.0%. This is 152% higher than the state rate of 3.6%. The median home value is $200,000. Housing costs are 4% lower than the state median of $208,000. With a home-value-to-income ratio of just 2.1x, Lambs Grove is one of the most affordable housing markets in the area. 94.4% of occupied housing units are owner-occupied. This homeownership rate is 32% higher than the state average of 71.7%.

Race & Ethnicity

Lambs Grove has a predominantly White (non-Hispanic) population, comprising 98.9% of all residents. Hispanic or Latino residents account for 1.1%. The Hispanic or Latino population (1.1%) is well below the state average of 7.3%.

Education

13.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% 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 97.4%.

Data Sources & Methodology

All demographic data for Lambs Grove, 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.