Rexburg, ID micro area ZIP codes
The Rexburg, ID micropolitan statistical area (CBSA 39940) covers 2 counties in Idaho and 12 ZIP codes.
- ZIP codes
- 12
- Population
- 68,379
- Avg. median income
- $61,600population-weighted
- Counties
- 2
Click anywhere on the map to see which ZIP code it's in.
Counties in the Rexburg, ID area
- Fremont County, ID
- Madison County, ID (central)
ZIP codes in the Rexburg, ID area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 83420 | Ashton | Fremont County | 2,580 | $69,286 | $441,500 |
| 83421 | Chester | Fremont County | 220 | — | $282,400 |
| 83429 | Island Park | Fremont County | 628 | $78,565 | $597,300 |
| 83433 | Macks Inn | Fremont County | 36 | $94,250 | $265,000 |
| 83436 | Newdale | Madison County | 778 | $80,000 | $507,200 |
| 83438 | Parker | Fremont County | 327 | $145,714 | $232,800 |
| 83440 | Rexburg | Madison County | 51,421 | $58,159 | $428,300 |
| 83441 PO Box | Rexburg | Madison County | — | — | — |
| 83445 | Saint Anthony | Fremont County | 7,975 | $68,012 | $354,200 |
| 83448 | Sugar City | Madison County | 3,365 | $76,000 | $401,100 |
| 83451 | Teton | Madison County | 993 | $67,946 | $375,700 |
| 83460 | Rexburg | Madison County | 56 | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Frequently asked questions
How many ZIP codes are in the Rexburg, ID micro area?
12 ZIP codes, based on each ZIP code's main county.
Which counties make up the Rexburg, ID area?
Fremont County and Madison County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).