RANK #468 / 996 · POP 52,487 · ID
PROJECTED GROWTH: +0.8%
Madison County, Idaho, is defined by Rexburg, its largest city and county seat, which is home to Brigham Young University-Idaho (BYU-Idaho). The presence of BYU-Idaho shapes the community, contributing to a youthful demographic and a strong family-oriented atmosphere. Located in the Upper Snake River Valley, about 25 miles northeast of Idaho Falls, the county offers access to outdoor recreation, including the St. Anthony Sand Dunes and proximity to Yellowstone and Grand Teton National Parks. Commutes within the county are generally short, with an average of 16.4 minutes. The Teton Lakes Golf Course, with its 27 holes and views of the Grand Tetons, is another notable local amenity.
Life in Madison County is influenced by the university, attracting families and young professionals. The Madison School District, serving Rexburg and surrounding areas, maintains an 89% high school graduation rate. The economy is largely driven by education, government, and healthcare, with BYU-Idaho being the largest employer. Recent economic developments include ongoing infrastructure projects, such as road extensions and a new fiber optic network connecting homes across Rexburg and Sugar City. The county is also preparing for a new regional landfill and has seen plans submitted for a new WinCo Foods store in Rexburg.
Overvalued relative to economy
Well below national median
Moderate climate & terrain
Prices detached from rents
Housing looks overvalued at 10.9x — home prices are high relative to local economic output. The typical U.S. county is 4–6x.
Source: Redfin · Census BPS — Browse sales on Redfin →
| PROJECT | AMOUNT | STATUS |
|---|---|---|
|
Madison County Fairgrounds Relocation
Madison County
|
$50M | Planned |
|
Madison Commons Mixed-Use Development
Trellis Development
|
$50M | Under Construction |
|
New Landfill in Newdale
Madison County
|
$30M | Planned |
Source: public records, news, corporate announcements. Amounts are estimates where noted.
Bars show percentile rank among all 996 counties.
Madison County has a Boom Town Index score of 53/100, ranking #468 among 996 U.S. counties. With job growth at +1.1% and a median household income of $53,025, it's an above-average county on economic indicators.
The median home value in Madison County is $324,300 with median rent at $916/month. The income-to-home-value ratio is 0.1635, which is less affordable than the national average.
Population growth: +3.0% year-over-year. Job growth: +1.1%. Home values changed +6.0% in the past 12 months.
Yes — 7.0% of Madison County's population moved from another state, which is above the national average and indicates strong in-migration.