Caldwell, ID · standard
ZIP Code 83605
Canyon County, Idaho - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 39,649
- 551/sq mi High-density area
- $68,427
- Median income Near-median income area
- $346,100
- Median home value Above-median home value
- 15.1%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Caldwell pairs a below-median household income with above-median home values, in a low-density, homeowner-dominated area.
- 44th pct
- household income, US ZIPs
- Top 27%
- home value, US ZIPs
- 551
- people per sq mi
- 69%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 83605 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 83605 (Caldwell, ID) rose +3.1% from 2023 to 2024. The all-transactions index moved from 384.1 in 2023 to 396.1 in 2024 (2000 = 100).
ZIP code 83605 is a densely settled ZIP (a standard USPS delivery area) in Caldwell, Canyon County, Idaho, with 39,649 residents across 71.9 square miles, a density of 551 people per square mile, in the Boise time zone.
ZIP 83605 reports a modest median household income of $68,427 (6% below the average Idaho ZIP), while per-capita income is $25,866. The poverty rate is 12.4%, with unemployment at 6.1%; those measures add context to the income figure. Median home value is $346,100 (9% below the average Idaho ZIP) and median rent is $1,124; 69.2% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 15.1% of adults hold a bachelor's degree or higher, the median age is 32.4, and the average commute is 23 minutes. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Canyon County, so 83605 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 83605
Top 5 sectors by establishment count in Caldwell, ID
Which industries have the most business establishments in ZIP 83605.
- Construction
Construction
316 establishments
- Health care and social assistance 119
Health care and social assistance
119 establishments
- Retail trade 106
Retail trade
106 establishments
- Accommodation and food services 89
Accommodation and food services
89 establishments
- Other services (except public administration) 85
Other services (except public administration)
85 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 83605, Caldwell, ID · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
39,649
Population
71.9
Area (sq mi)
551
People / sq mi
Boise
Time Zone
standard
ZIP Type
Who lives in ZIP 83605?
32.4
Median Age
49.4%
Male
50.6%
Female
14.9%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$68,427
Median Household Income
-6% vs state ZIP avg
$25,866
Per Capita Income
12.4%
Poverty Rate
6.1%
Unemployment Rate
23.3 min
Mean Commute Time
How ZIP 83605 ranks nationally
Caldwell, ID household income vs. every US ZIP code
Median household income, the full national distribution, with this ZIP marked
$68,427 44th percentile higher than 44% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
14,391housing units
14,391
Total Housing Units
13,709
Occupied Units
682
Vacant Units
2.91
Avg Household Size
Occupancy Type
$346,100
Median Home Value
-9% vs state ZIP avg
$1,124
Median Rent
1987
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+3.1%
YoY Change (2024)
396
HPI Index (2000 = 100)
+296%
Total Change Since 2000
Home values in ZIP 83605 have increased 3.1% over the past year (2024). Since 2000, this ZIP has seen +296% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +13.3% | 262 |
| 2021 | +30.2% | 341 |
| 2022 | +14.7% | 391 |
| 2023 | -1.7% | 384 |
| 2024 | +3.1% | 396 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 1,140 business establishments in ZIP 83605, employing approximately 16,390 people with a combined annual payroll of $796,445,000.
1,140
Businesses
16,390
Employees
$796.4M
Annual Payroll
17
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 316 | 27.7% |
| Health care and social assistance | 119 | 10.4% |
| Retail trade | 106 | 9.3% |
| Accommodation and food services | 89 | 7.8% |
| Other services (except public administration) | 85 | 7.5% |
| Manufacturing | 74 | 6.5% |
| Administrative and support and waste management and remediation services | 69 | 6.0% |
| Wholesale trade | 55 | 4.8% |
| Finance and insurance | 55 | 4.8% |
| Real estate and rental and leasing | 47 | 4.1% |
| Professional, scientific, and technical services | 43 | 3.8% |
| Transportation and warehousing | 38 | 3.3% |
| Arts, entertainment, and recreation | 12 | 1.1% |
| Information | 11 | 1.0% |
| Educational services | 10 | 0.9% |
| Agriculture, forestry, fishing and hunting | 6 | 0.5% |
| Management of companies and enterprises | 3 | 0.3% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 83605 vs 83651 →
ZIP 83605 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 83605
Caldwell (83605)
39,649 residents
- 83687
Nampa (83687)
29,697 residents
- 83651
Nampa (83651)
28,611 residents
- 83607
Caldwell (83607)
21,732 residents
- 83644 9,976
Middleton (83644)
9,976 residents
- 83656 582
Notus (83656)
582 residents
What this shows Among its immediate neighbors, ZIP 83605 ranks the most populous - useful context the national average alone can't give.
ZIP 83605 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 83644
Middleton (83644)
$97,293 median income
- 83607
Caldwell (83607)
$85,399 median income
- 83687
Nampa (83687)
$76,682 median income
- 83651
Nampa (83651)
$69,914 median income
- 83605
Caldwell (83605)
$68,427 median income
- 83656
Notus (83656)
$64,750 median income
What this shows By household income, ZIP 83605 ranks #5 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 83605, both outside ID so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (39,649 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Canyon County
Related Areas
Frequently Asked Questions
What county is ZIP code 83605 in?
ZIP code 83605 (Caldwell) is located in Canyon County, Idaho. Canyon County contains multiple ZIP codes, see the full list at /counties/canyon-id.
What is the population of ZIP code 83605?
ZIP code 83605 in Caldwell, ID has a population of 39,649 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 83605?
The median household income in ZIP 83605 is $68,427, which is 10% below the national average of $76,288.
What is the average home value in ZIP 83605?
The median home value in ZIP 83605 is $346,100, which is 24% above the national average of $278,155.
What is the demographic makeup of ZIP 83605?
The largest racial group in ZIP 83605 is White at 57.0%. Hispanic or Latino residents make up 42.0% of the population.
How many businesses are in ZIP code 83605?
ZIP code 83605 has 1,140 business establishments employing approximately 16,390 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 83605?
The top industries by establishment count in ZIP 83605 are: Construction (316), Health care and social assistance (119), Retail trade (106). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 83605?
According to the FHFA House Price Index, home values in ZIP 83605 increased by 3.1% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 296%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 83605?
In ZIP code 83605, 49.2% of residents aged 25+ have a high school diploma or higher, and 15.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 83605?
The mean commute time for workers in ZIP code 83605 is 23.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 83605?
In ZIP code 83605, approximately 69.2% of occupied housing units are owner-occupied and 30.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 83605?
The poverty rate in ZIP code 83605 is 12.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 83605's numbers, next.
- See how ZIP 83605 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Caldwell, ID ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.