Jefferson County, ID Demographics & ZIP Codes
Jefferson County, Idaho demographics and median household income by ZIP code — 7 ZIP codes — population 31,220 — avg. income $78,118 — avg. home value $236,229. Compare income, housing, and ZIP-level data on US5.
Jefferson County demographics
Jefferson County, Idaho covers 7 ZIP codes, with a combined ZIP-area population of about 31,220.
Median household income in Jefferson County
The average median household income across ZIP codes in Jefferson County, Idaho is about $78,118 — about 11% above the ID ZIP average ($70,279), and about 4% above the U.S. median ($75,149).
Among ZIPs with income data, 83434 (Menan) is near the top at about $85,625, while 83450 (Mud Lake) is near the bottom at about $66,250.
Housing in Jefferson County
For housing in Jefferson County, Idaho, the average median home value is about $236,229 and the average median rent is about $857.
The most populous ZIP is 83442 (Rigby) with about 24,829 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Jefferson County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 83442 | Rigby | Jefferson County | ID | 24,829 | $84,328 | $376,800 |
| 83434 | Menan | Jefferson County | ID | 1,754 | $85,625 | $240,400 |
| 83444 | Roberts | Jefferson County | ID | 1,267 | $83,333 | $180,500 |
| 83450 | Mud Lake | Jefferson County | ID | 1,239 | $66,250 | $183,700 |
| 83431 | Lewisville | Jefferson County | ID | 1,066 | $81,667 | $238,600 |
| 83425 | Hamer | Jefferson County | ID | 634 | $70,000 | $222,400 |
| 83435 | — | Jefferson County | ID | 431 | $75,625 | $211,200 |
Frequently asked questions
What are the demographics of Jefferson County?
Jefferson County, Idaho has a combined ZIP-area population of about 31,220 across 7 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Jefferson County?
The average median household income across ZIP codes in Jefferson County, Idaho is about $78,118, about 11% above the state ZIP average ($70,279), and about 4% above the U.S. median ($75,149). Average median home value is about $236,229. Among ZIPs with data, 83434 (Menan) is near the top ($85,625) and 83450 (Mud Lake) is near the bottom ($66,250).
How many ZIP codes are in Jefferson County?
Jefferson County, Idaho includes 7 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Jefferson County?
This page lists ZIP codes in Jefferson County, Idaho with population, median household income, and home value. Select a ZIP for a full demographics profile.