Spencer city, Idaho Demographics & Population 2026

Population Overview

Spencer city is a small community located in Idaho. The total population is 28. It ranks as the 230th most populous out of 234 cities and towns in Idaho.

Age Demographics

The median age in Spencer city is 66.5 years. This is 79% higher than the state median of 37.1 years. Only 0.0% of residents are under 18, indicating fewer families with children. 14.3% 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 Spencer city is $70,972. This is 5% lower than the state median of $74,636. Compared to the national median of $78,538, household income here is 10% lower. The poverty rate stands at 14.3%. This is 34% higher than the state poverty rate of 10.6%. The unemployment rate is 13.6%. This is 271% higher than the state rate of 3.7%. The median home value is $112,500. Housing costs are 70% lower than the state median of $376,000. With a home-value-to-income ratio of just 1.6x, Spencer city is one of the most affordable housing markets in the area. 89.5% of occupied housing units are owner-occupied. This homeownership rate is 24% higher than the state average of 72.4%.

Race & Ethnicity

The largest racial or ethnic group in Spencer city is White (non-Hispanic), making up 60.7% of the population. Hispanic or Latino residents account for 32.1%. The Hispanic or Latino population is significantly higher than the state average (32.1% vs 13.3%).

Education

0.0% 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 100% 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 80.8%.

Data Sources & Methodology

All demographic data for Spencer 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.