Caldwell, ID · standard

ZIP Code 83605

Canyon County, Idaho — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

Reviewed by PlainZIP Editorial Team, ZIP Code Data Editors · June 15, 2026

39,649
551/sq mi: $68,427
Median income: $346,100
Median home value: 15.1%
Bachelor's or higher

The verdict

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.

ZIP code 83605 is classified by USPS as a standard delivery area and covers roughly 71.9 square miles in Caldwell, Canyon County, Idaho. The area is home to 39,649 residents, producing a population density of 551 people per square mile, and falls within the Boise time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 83605 against Idaho and the nation.

On the economic side, the median household income for ZIP 83605 sits at $68,427 (6% below the Idaho average), while per-capita income is $25,866. The poverty rate stands at 12.4% and the unemployment rate at 6.1%. On housing, the median home value is $346,100 (9% below the state average) with median rent at $1,124 per month, and 69.2% of occupied units are owner-occupied, a direct signal of whether 83605 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 15.1% of adults hold a bachelor's degree or higher, the median age is 32.4, and the average commute is 23 minutes. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Canyon County, so you can benchmark 83605 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 83605

Construction

316
Health care and social assistance

119
Retail trade

106
Accommodation and food services

89
Other services (except public administration)

85

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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 83605, Caldwell, ID · 2023 Accessed 2026-06-15 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + 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

Neighborhood Scorecard

Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.

View Scorecard →

Who lives in ZIP 83605?

32.4

Median Age

49.4%

Male

50.6%

Female

14.9%

Foreign-Born

White 57.0%

African American 0.5%

Asian 1.0%

American Indian or Alaska Native 1.4%

Native Hawaiian or Pacific Islander 0.4%

Two or More Ethnicities 18.9%

Hispanic or Latino 42.0%

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

$25,866

Per Capita Income

12.4%

Poverty Rate

6.1%

Unemployment Rate

23.3 min

Mean Commute Time

How ZIP 83605 ranks nationally

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?

High School Graduate or Higher 49.2%

Bachelor's Degree or Higher 15.1%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

14,391

Total Housing Units

13,709

Occupied Units

682

Vacant Units

2.91

Avg Household Size

Occupancy Type

Owner 69.2%

Renter 30.8%

$346,100

Median Home Value

-9% vs state

$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

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 →

83605

39,649
83687

29,697
83651

28,611
83607

21,732
83644

9,976
83656

582

What this shows Among its immediate neighbors, ZIP 83605 ranks the most populous — useful context the national average alone can't give.

83644

$97,293
83607

$85,399
83687

$76,682
83651

$69,914
83605

$68,427
83656

$64,750

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.

ZIP Code	City	Population	Distance
83651	Nampa, ID	28,611	5.4 mi
83607	Caldwell, ID	21,732	5.7 mi
83644	Middleton, ID	9,976	7.1 mi
83687	Nampa, ID	29,697	7.3 mi
83656	Notus, ID	582	8.4 mi

More ZIP Codes in Canyon County

Canyon County Caldwell, ID Idaho

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.