Lost River city, Idaho Demographics & Population 2026

Population Overview

Lost River city is a small community located in Idaho. The total population is 51. It ranks as the 221st most populous out of 234 cities and towns in Idaho.

Age Demographics

The median age in Lost River city is 76.1 years. This is 105% higher than the state median of 37.1 years. Only 0.0% of residents are under 18, indicating fewer families with children. 51.0% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The poverty rate stands at 0.0%. This is 100% lower than the state poverty rate of 10.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.7%. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 38% higher than the state average of 72.4%.

Race & Ethnicity

The largest racial or ethnic group in Lost River city is White (non-Hispanic), making up 82.3% of the population. Black or African American residents account for 11.8%. The Black or African American population is significantly higher than the state average (11.8% vs 0.7%). The Hispanic or Latino population (5.9%) is well below the state average of 13.3%.

Education

23.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 25% lower than the state rate of 31.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.6%. Notably, 23.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Lost River city, Idaho 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 Idaho state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 234 Census-designated places in Idaho. For official data, visit data.census.gov.