Herreid, South Dakota Demographics & Population 2026

A note before these figures: with a population of 560, Herreid'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

Herreid is a small community located in South Dakota, within Campbell County. The total population is 560. It ranks as the 141st most populous out of 439 Census-designated places in South Dakota.

Age Demographics

The median age in Herreid is 36.6 years. This is 4% lower than the state median of 38.0 years. With 32.7% of the population under 18, Herreid has a notably young demographic profile, suggesting a family-oriented community. 14.8% 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 Herreid is $72,250. This is 4% lower than the state median of $75,081. It is also 11% lower than the national median of $80,734. The poverty rate stands at 3.4%. This is 72% lower than the state poverty rate of 11.9%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.5%. This is 53% higher than the state rate of 2.9%. The median home value is $122,900. Housing costs are 52% lower than the state median of $257,400. With a home-value-to-income ratio of just 1.7x, Herreid is one of the most affordable housing markets in the area. 71.7% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 68.6%.

Race & Ethnicity

Herreid has a predominantly White (non-Hispanic) population, comprising 87.3% of all residents. Hispanic or Latino residents account for 7.3%. The Hispanic or Latino population is significantly higher than the state average (7.3% vs 4.8%).

Education

41.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% higher than the state rate of 31.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 84.5%.

Data Sources & Methodology

All demographic data for Herreid, South Dakota 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 South Dakota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 439 Census-designated places in South Dakota. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.