119th Congress · ID-1
Idaho's 1st Congressional District
Idaho's 1st Congressional District (ID-1) has a population of 957,699. The median household income is $76,208 and the median age is 39.0.
957,699
Population
24
People / sq mi
$76,208
Median Income
39.0
Median Age
ID-1 covers 39,400 sq mi of land at 24.3 people per square mile.
Race & Ethnicity
| White | 83.9% |
| Black or African American | 0.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.0% |
Economy & Income
$76,208
Median Household Income
$37,328
Per Capita Income
6.8%
Poverty Rate
2.0%
Unemployment
Housing
$402,800
Median Home Value
$1,217
Median Rent
75.8%
Homeownership
Education
91.9%
High School+
29.6%
Bachelor's+
Other Idaho Congressional Districts
Largest cities in Idaho
Largest counties in Idaho
State rankings
Frequently Asked Questions
Idaho's 1st Congressional District (ID-1) has a population of 957,699 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in Idaho's 1st Congressional District is $76,208, with a per capita income of $37,328.
Idaho's 1st Congressional District is 83.9% White, 0.7% Black, 0.0% Asian, and 3.0% Hispanic or Latino, per Census ACS data.
More from Idaho
Data for Idaho's 1st Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
The this entity record above pulls directly from the U.S. Census Bureau ACS and decennial files. What follows is the per-entity context — how this entity sits in the broader U.S. population demographics distribution and which underlying factors drive the headline numbers.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.