- Rexburg (Principal City)
- Island Park
- Lake (unincorporated)
- St. Anthony
- Sugar City
- Warm River
As of the census of 2000, there were 39,286 people, 11,014 households, and 7,884 families residing within the μSA. The racial makeup of the μSA was 94.27% White, 0.21% African American, 0.38% Native American, 0.51% Asian, 0.15% Pacific Islander, 3.35% from other races, and 1.14% from two or more races. Hispanic or Latino of any race were 5.94% of the population.
The median income for a household in the μSA was $33,016, and the median income for a family was $38,798. Males had a median income of $27,895 versus $19,149 for females. The per capita income for the μSA was $12,461.
- "Annual Estimates of the Population of Metropolitan and Micropolitan Statistical Areas: April 1, 2000 to July 1, 2007 (CBSA-EST2007-01)". 2007 Population Estimates. United States Census Bureau, Population Division. 2008-03-27. Archived from the original (CSV) on July 9, 2010. Retrieved 2008-04-01.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.