Shamrock Colony CDP, South Dakota Demographics & Population 2026

Population Overview

Shamrock Colony CDP is a small community located in South Dakota. The total population is 65. It ranks as the 347th most populous out of 439 cities and towns in South Dakota.

Age Demographics

The median age in Shamrock Colony CDP is 35.2 years. This is 7% lower than the state median of 37.7 years. With 44.6% of the population under 18, Shamrock Colony CDP has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The poverty rate stands at 36.1%. This is 201% higher than the state poverty rate of 12.0%. 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 3.0%. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 68.6%.

Race & Ethnicity

Shamrock Colony CDP has a predominantly White (non-Hispanic) population, comprising 100.0% of all residents.

Education

63.9% of residents aged 25 and older hold a bachelor's degree or higher. This places Shamrock Colony CDP in the top 10% of all cities in the state for educational attainment. This is 105% higher than the state rate of 31.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 63.9%.

Data Sources & Methodology

All demographic data for Shamrock Colony CDP, South Dakota 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 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. For official data, visit data.census.gov.