Firth city, Idaho Demographics & Population 2026

Population Overview

Firth city is a small community located in Idaho. The total population is 381. It ranks as the 157th most populous out of 234 cities and towns in Idaho.

Age Demographics

The median age in Firth city is 37.4 years. This is about average than the state median of 37.1 years.

Economy, Income & Housing

The median household income in Firth city is $49,167. This is 34% lower than the state median of $74,636. Compared to the national median of $78,538, household income here is 37% lower. The poverty rate stands at 12.1%. This is 13% higher than the state poverty rate of 10.6%. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.7%. The median home value is $197,900. Housing costs are 47% lower than the state median of $376,000. The home-value-to-income ratio is 4.0x. 58.3% of occupied housing units are owner-occupied. This homeownership rate is 19% lower than the state average of 72.4%.

Race & Ethnicity

The largest racial or ethnic group in Firth city is White (non-Hispanic), making up 78.2% of the population. Hispanic or Latino residents account for 14.2%.

Education

17.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 44% 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 90.7%.

Data Sources & Methodology

All demographic data for Firth 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.