Cassia County, ID ZIP Codes
8 ZIP codes cover all or part of Cassia County, Idaho: 83318, 83211, 83323, 83346, 83344, 83342, 83311 and 83312. The Census Bureau counts 25,483 residents in the county, with a median household income of $70,830 and a median home value of $284,600. Median household income ranges from $56,818 in 83342 to $71,282 in 83318. Its largest communities include Burley, Oakley, Declo, Albion and Malta.
Cassia County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 25,483 |
| Households | 8,495 |
| Median household income | $70,830 |
| Median home value | $284,600 |
| Median age | 33.2 |
| Median rent | $1,000 |
All 8 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 33,283 |
| Households (sum of ZIP codes) | 11,163 |
| Median household income, range across ZIP codes | $56,818 (83342) to $71,282 (83318) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $68,682 |
| Homeowners | 68.9% |
| Households with kids under 18 | 38.5% |
| Moved in the past year | 13.5% |
| Carrier routes in EDDM2GO's route library | 17 routes, 8,259 homes (4 of 8 ZIP codes) |
Top facts
- Highest median household income in Cassia County: 83318 ($71,282)
- Most residents: 83318 (19,459 people)
- Highest homeownership: 83346 (82.3% own their home)
- Most households with kids: 83344 (43.3% of households)
- Most new movers: 83318 (16.6% moved in last year)
- Youngest median age: 83344 (29.4 years)
- Highest median home value: 83344 ($425,800)
Every ZIP code in Cassia County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 83318 | Burley | 19,459 | 6,676 | $71,282 | $276,500 | 67.5% | 38.2% | 16.6% | 13 | 7,856 | 100% of its land |
| 83211 | American Falls | 6,743 | 2,289 | $65,483 | $209,200 | 68.8% | 36.7% | 9.4% | — | — | 35% of its land |
| 83323 | Declo | 1,984 | 578 | $60,625 | $339,900 | 65.6% | 32.5% | 8.8% | — | — | 100% of its land |
| 83346 | Oakley | 1,451 | 487 | $70,114 | $268,500 | 82.3% | 42.1% | 10.7% | 1 | 317 | 100% of its land |
| 83344 | Murtaugh | 1,234 | 379 | $65,417 | $425,800 | 67.0% | 43.3% | 13.4% | 1 | 413 | 69% of its land |
| 83342 | Malta | 1,231 | 408 | $56,818 | $224,300 | 77.5% | 41.2% | 3.6% | 2 | 386 | 65% of its land |
| 83311 | Albion | 903 | 236 | $101,167 | $293,800 | 68.6% | 58.1% | 10.6% | — | — | 100% of its land |
| 83312 | Almo | 278 | 110 | $57,155 | $435,500 | 89.1% | 39.1% | 0.0% | — | — | 100% of its land |
A ZIP code is listed for Cassia 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
- Burley — 11,958 residents · 1 ZIP code
- Oakley — 830 residents · 1 ZIP code
- Declo — 477 residents · 1 ZIP code
- Albion — 376 residents · 1 ZIP code
- Malta — 346 residents · 1 ZIP code
- Murtaugh — 129 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Cassia County — 6 ZIP codes ranked
- ZIP codes with the highest home values in Cassia County — 6 ZIP codes ranked
- ZIP codes with the highest homeownership in Cassia County — 6 ZIP codes ranked
- ZIP codes with the most families with kids in Cassia County — 6 ZIP codes ranked
- ZIP codes with the most new movers in Cassia County — 6 ZIP codes ranked
- Youngest ZIP codes in Cassia County — 6 ZIP codes ranked
- Oldest ZIP codes in Cassia County — 6 ZIP codes ranked
- Fastest-growing ZIP codes in Cassia County — 6 ZIP codes ranked
Price a mailing to Cassia County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Cassia County, ID?
- 83318, 83211, 83323, 83346, 83344, 83342, 83311 and 83312. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Cassia County?
- 25,483 residents in 8,495 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Cassia County?
- $70,830 for the county as a whole. Its ZIP codes range from $56,818 (83342) to $71,282 (83318).
- Which Cassia County ZIP code has the highest median household income?
- 83318, at $71,282, among ZIP codes with at least 1,000 residents. See the full ranking of Cassia County ZIP codes by income.
- How many carrier routes and mailboxes are in Cassia County?
- For the 4 of 8 ZIP codes in EDDM2GO's stored route library: 17 carrier routes reaching 8,259 residential and 716 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.