St. Augustine village, Illinois Demographics & Population 2026

Population Overview

St. Augustine village is a small community located in Illinois. The total population is 123. It ranks as the 1314th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in St. Augustine village is 54.2 years. This is 39% higher than the state median of 38.9 years. Only 13.0% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in St. Augustine village is $49,375. This is 40% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 37% lower. The poverty rate stands at 17.1%. This is 46% higher than the state poverty rate of 11.7%. The unemployment rate is 7.4%. This is 28% higher than the state rate of 5.8%. The median home value is $52,700. Housing costs are 79% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.1x, St. Augustine village is one of the most affordable housing markets in the area. 87.3% of occupied housing units are owner-occupied. This homeownership rate is 31% higher than the state average of 66.8%.

Race & Ethnicity

St. Augustine village has a predominantly White (non-Hispanic) population, comprising 96.8% of all residents. Hispanic or Latino residents account for 3.3%. The White (non-Hispanic) population is significantly higher than the state average (96.8% vs 58.8%). The Hispanic or Latino population (3.3%) is well below the state average of 18.5%.

Education

5.4% 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 85% lower than the state rate of 37.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.5%.

Data Sources & Methodology

All demographic data for St. Augustine village, Illinois 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 Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. For official data, visit data.census.gov.