Caldwell, ID ZIP Codes
2 ZIP codes serve Caldwell, Idaho: 83605 and 83607. Together they are home to 76,816 residents in 25,516 households. Median household income ranges from $68,427 in 83605 to $85,399 in 83607.
Caldwell city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 66,516 |
| Households | 21,573 |
| Median household income | $73,058 |
| Median home value | $367,300 |
| Median age | 31.5 |
| Median rent | $1,264 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 76,816 |
| Households (sum of ZIP codes) | 25,516 |
| Median household income, range across ZIP codes | $68,427 (83605) to $85,399 (83607) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $76,280 |
| Homeowners | 75.3% |
| Households with kids under 18 | 39.6% |
| Moved in the past year | 12.9% |
| Carrier routes in EDDM2GO's route library | not loaded yet |
Top facts
- Highest median household income in Caldwell: 83607 ($85,399)
- Most residents: 83605 (41,325 people)
- Highest homeownership: 83607 (82.3% own their home)
- Most households with kids: 83607 (40.4% of households)
- Most new movers: 83605 (14.2% moved in last year)
- Youngest median age: 83605 (32.4 years)
- Highest median home value: 83607 ($426,700)
Every ZIP code in Caldwell
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 83605 | Caldwell | 41,325 | 13,709 | $68,427 | $346,100 | 69.2% | 38.9% | 14.2% | — | — | 61% of its land; mailing city |
| 83607 | Caldwell | 35,491 | 11,807 | $85,399 | $426,700 | 82.3% | 40.4% | 11.4% | — | — | 3% of its land; mailing city |
A ZIP code is listed for Caldwell when at least 10% of its land lies inside Caldwell city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Caldwell. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Caldwell.
Counties
- Canyon County — 12 ZIP codes
Price a mailing to Caldwell ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Caldwell, ID?
- 83605 and 83607. A ZIP code is listed for Caldwell when at least 10% of its land lies inside Caldwell city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Caldwell.
- What is the population of Caldwell, ID?
- The Census Bureau counts 66,516 residents inside Caldwell city limits (ACS 2020–2024). The 2 ZIP codes that serve Caldwell hold 76,816 residents in all.
- What is the median household income in Caldwell, ID?
- $73,058 inside Caldwell city limits, per the Census Bureau. Across its ZIP codes the medians run from $68,427 to $85,399.
- Which Caldwell ZIP code has the highest median household income?
- 83607, at $85,399, among ZIP codes with at least 1,000 residents.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.