Swan Valley, Idaho Demographics & Population 2026

A note before these figures: with a population of 281, Swan Valley's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Swan Valley is a small community located in Idaho, within Bonneville County. The total population is 281. It ranks as the 176th most populous out of 232 Census-designated places in Idaho.

Age Demographics

The median age in Swan Valley is 42.7 years. This is 14% higher than the state median of 37.3 years.

Economy, Income & Housing

The poverty rate stands at 15.3%. This is 44% higher than the state poverty rate of 10.6%. The unemployment rate is 6.3%. This is 69% higher than the state rate of 3.7%. The median home value is $672,400. Housing costs are 61% higher than the state median of $418,600. 90.6% of occupied housing units are owner-occupied. This homeownership rate is 26% higher than the state average of 72.1%.

Race & Ethnicity

Swan Valley has a predominantly White (non-Hispanic) population, comprising 96.8% of all residents. Hispanic or Latino residents account for 3.2%. The Hispanic or Latino population (3.2%) is well below the state average of 13.7%.

Education

43.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Swan Valley in the top 10% of all cities in the state for educational attainment. This is 36% higher than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Swan Valley, Idaho is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Idaho state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 232 Census-designated places in Idaho. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.