Jefferson County, ID ZIP Codes
7 ZIP codes cover all or part of Jefferson County, Idaho: 83442, 83434, 83444, 83450, 83431, 83425 and 83435. The Census Bureau counts 33,154 residents in the county, with a median household income of $86,679 and a median home value of $408,400. Median household income ranges from $70,046 in 83450 to $90,833 in 83431. Its largest communities include Rigby, Ririe, Menan, Roberts and Mud Lake.
Jefferson County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 33,154 |
| Households | 10,199 |
| Median household income | $86,679 |
| Median home value | $408,400 |
| Median age | 32.8 |
| Median rent | $1,138 |
All 7 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 32,160 |
| Households (sum of ZIP codes) | 9,872 |
| Median household income, range across ZIP codes | $70,046 (83450) to $90,833 (83431) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $87,228 |
| Homeowners | 83.3% |
| Households with kids under 18 | 47.5% |
| Moved in the past year | 12.6% |
| Carrier routes in EDDM2GO's route library | 18 routes, 9,824 homes (4 of 7 ZIP codes) |
Top facts
- Highest median household income in Jefferson County: 83431 ($90,833)
- Most residents: 83442 (25,609 people)
- Highest homeownership: 83442 (87.3% own their home)
- Most households with kids: 83450 (51.9% of households)
- Most new movers: 83450 (24.6% moved in last year)
- Youngest median age: 83450 (29.3 years)
- Highest median home value: 83442 ($449,300)
Every ZIP code in Jefferson County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 83442 | Rigby | 25,609 | 7,738 | $88,260 | $449,300 | 87.3% | 48.7% | 13.4% | 13 | 8,930 | 71% of its land |
| 83434 | Menan | 1,816 | 613 | $82,731 | $277,400 | 78.5% | 44.7% | 9.2% | 1 | 639 | 72% of its land |
| 83444 | Roberts | 1,261 | 407 | $88,438 | $263,000 | 62.9% | 42.5% | 4.1% | 2 | 413 | 99% of its land |
| 83450 | Terreton | 1,207 | 399 | $70,046 | $231,300 | 59.4% | 51.9% | 24.6% | 2 | 258 | 100% of its land |
| 83431 | Lewisville | 1,045 | 314 | $90,833 | $241,700 | 77.7% | 39.8% | 2.3% | — | — | 100% of its land |
| 83425 | Hamer | 622 | 196 | $80,833 | $227,200 | 69.9% | 34.2% | 6.7% | — | — | 93% of its land |
| 83435 | Monteview | 600 | 205 | $73,750 | $221,000 | 57.1% | 37.1% | 9.1% | — | — | 81% of its land |
A ZIP code is listed for Jefferson County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Rigby — 5,404 residents · 1 ZIP code
- Ririe — 1,079 residents · 2 ZIP codes
- Menan — 876 residents · 1 ZIP code
- Roberts — 609 residents · 1 ZIP code
- Mud Lake — 491 residents · 1 ZIP code
- Lewisville — 453 residents · 1 ZIP code
- Hamer — 59 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Jefferson County — 5 ZIP codes ranked
- ZIP codes with the highest home values in Jefferson County — 5 ZIP codes ranked
- ZIP codes with the highest homeownership in Jefferson County — 5 ZIP codes ranked
- ZIP codes with the most families with kids in Jefferson County — 5 ZIP codes ranked
- ZIP codes with the most new movers in Jefferson County — 5 ZIP codes ranked
- Youngest ZIP codes in Jefferson County — 5 ZIP codes ranked
- Oldest ZIP codes in Jefferson County — 5 ZIP codes ranked
Price a mailing to Jefferson County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Jefferson County, ID?
- 83442, 83434, 83444, 83450, 83431, 83425 and 83435. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Jefferson County?
- 33,154 residents in 10,199 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Jefferson County?
- $86,679 for the county as a whole. Its ZIP codes range from $70,046 (83450) to $90,833 (83431).
- Which Jefferson County ZIP code has the highest median household income?
- 83431, at $90,833, among ZIP codes with at least 1,000 residents. See the full ranking of Jefferson County ZIP codes by income.
- How many carrier routes and mailboxes are in Jefferson County?
- For the 4 of 7 ZIP codes in EDDM2GO's stored route library: 18 carrier routes reaching 9,824 residential and 417 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.