Zip code 83321: Castleford, Idaho

Q: What city is zip code 83321?

83321 is assigned to Castleford, Idaho. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 83321 in?

83321 is in Twin Falls County, Idaho.

Q: What is the population of 83321?

About 482 people live in 83321, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 83321?

The median household income in 83321 is $60,000.

Q: What zip codes are near 83321?

The closest zip codes to 83321 are 83301, 83316, 83328, 83302, 83303.

Residential delivery areaTwin Falls CountyMountain Time

Population

482

Small sample: rough estimates

Median household income

$60K

U.S. $81K

Median home value

—

U.S. $333K

Median rent

$925/mo

U.S. $1,413

Median age

46.8

U.S. 38.9

Land area

181 sq mi

3 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 83321

83321 is a rural zip code in Castleford, Idaho (Twin Falls County), covering 181 sq mi of land. About 482 people live here, or 3 per square mile. The median resident is 46.8 years old, compared with 38.9 nationally. With so few residents, the Census figures below are rough estimates with wide margins of error.

The median household earns $60,000 a year, 26% below the national median of $80,734. 14.8% of residents live below the poverty line (U.S.: 12.5%). 67% of occupied homes are lived in by their owners, and renters pay a median of $925 a month.

24% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 21.4 minutes each way, and 2% of workers work from home. The most common jobs among working residents are in construction and repair; farming, fishing and forestry; and production and manufacturing. 24% of households speak a language other than English at home, most often Spanish.

How 83321 compares

Sorted from highest to lowest national percentile

Only about 482 people live here, so these survey estimates have wide margins of error.

Uninsured rate20.5%
95th
WeaknessU.S. 8.4% · ID 9.1%14th of 256 in ID
Residents 65 and older26.1%
93rd
U.S. 17.2% · ID 17%76th of 256 in ID
Median age46.8
91st
U.S. 38.9 · ID 37.390th of 256 in ID
Self-employed workers14.5%
89th
U.S. 10% · ID 12.5%123rd of 256 in ID
Tech workers4.5%
74th
U.S. 3.8% · ID 2.7%25th of 256 in ID
Poverty rate14.8%
69th
U.S. 12.5% · ID 10.6%61st of 256 in ID
Housing vacancy9.1%
67th
U.S. 10.1% · ID 10.3%147th of 256 in ID
Unemployment rate5.7%
64th
U.S. 5.2% · ID 3.7%48th of 256 in ID
Veterans6.8%
63rd
U.S. 6.2% · ID 8%167th of 256 in ID
Diversity index55.5
62nd
U.S. 61.4 · ID 36.211th of 256 in ID
Residents under 1823.4%
62nd
U.S. 22% · ID 24.1%113th of 256 in ID
Foreign-born residents12.7%
59th
U.S. 14.1% · ID 5.9%29th of 256 in ID
Homeownership rate66.7%
45th
U.S. 65.2% · ID 72.1%216th of 256 in ID
Bachelor's degree or higher24.3%
32nd
U.S. 35.7% · ID 31.8%115th of 256 in ID
Median household income$60,000
20th
WeaknessU.S. $80,734 · ID $77,800189th of 242 in ID
Average commute21.4 min
20th
StrengthU.S. 26.4 min · ID 21.6 min151st of 233 in ID
Government workers10%
19th
U.S. 14.5% · ID 15%208th of 256 in ID
Broadband access86.7%
18th
WeaknessU.S. 91% · ID 91.9%194th of 256 in ID
Median gross rent$925
15th
U.S. $1,413 · ID $1,238114th of 191 in ID
Rent-burdened renters38.9%
14th
StrengthU.S. 51.1% · ID 46.9%126th of 234 in ID
Per capita income$26,022
10th
WeaknessU.S. $44,673 · ID $38,952234th of 256 in ID
Median earnings per worker$32,500
5th
WeaknessU.S. $49,666 · ID $43,421220th of 253 in ID
Income inequality (Gini)0.367
5th
StrengthU.S. 0.483 · ID 0.444186th of 255 in ID
Healthcare workers5%
4th
U.S. 9.7% · ID 9.5%180th of 256 in ID
Population482
1st
U.S. 334,922,499 · ID 1,934,262202nd of 256 in ID
Population density3/sq mi
1st
U.S. 95/sq mi · ID 23/sq mi219th of 256 in ID
Work from home2%
1st
U.S. 15.1% · ID 13.3%233rd of 256 in ID

Measure	83321	Twin Falls	ID	U.S.	National percentile	Rank in ID
Uninsured rateWeakness	20.5%	10.2%	9.1%	8.4%	95th	14th of 256
Residents 65 and older	26.1%	16.6%	17%	17.2%	93rd	76th of 256
Median age	46.8	36.1	37.3	38.9	91st	90th of 256
Self-employed workers	14.5%	13.5%	12.5%	10%	89th	123rd of 256
Tech workers	4.5%	1.2%	2.7%	3.8%	74th	25th of 256
Poverty rate	14.8%	11.5%	10.6%	12.5%	69th	61st of 256
Housing vacancy	9.1%	4.6%	10.3%	10.1%	67th	147th of 256
Unemployment rate	5.7%	3%	3.7%	5.2%	64th	48th of 256
Veterans	6.8%	7.4%	8%	6.2%	63rd	167th of 256
Diversity index	55.5	39.9	36.2	61.4	62nd	11th of 256
Residents under 18	23.4%	26.3%	24.1%	22%	62nd	113th of 256
Foreign-born residents	12.7%	8.5%	5.9%	14.1%	59th	29th of 256
Homeownership rate	66.7%	70.5%	72.1%	65.2%	45th	216th of 256
Bachelor's degree or higher	24.3%	23.5%	31.8%	35.7%	32nd	115th of 256
Median household incomeWeakness	$60,000	$67,409	$77,800	$80,734	20th	189th of 242
Average commuteStrength	21.4 min	17.8 min	21.6 min	26.4 min	20th	151st of 233
Government workers	10%	12.1%	15%	14.5%	19th	208th of 256
Broadband accessWeakness	86.7%	91.1%	91.9%	91%	18th	194th of 256
Median gross rent	$925	$1,089	$1,238	$1,413	15th	114th of 191
Rent-burdened rentersStrength	38.9%	51.8%	46.9%	51.1%	14th	126th of 234
Per capita incomeWeakness	$26,022	$35,344	$38,952	$44,673	10th	234th of 256
Median earnings per workerWeakness	$32,500	$40,116	$43,421	$49,666	5th	220th of 253
Income inequality (Gini)Strength	0.367	0.442	0.444	0.483	5th	186th of 255
Healthcare workers	5%	9%	9.5%	9.7%	4th	180th of 256
Population	482	93,734	1,934,262	334,922,499	1st	202nd of 256
Population density	3/sq mi	49/sq mi	23/sq mi	95/sq mi	1st	219th of 256
Work from home	2%	7.4%	13.3%	15.1%	1st	233rd of 256

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

14%

5–17

18–24

25–34

10%

35–44

15%

45–54

13%

55–64

17%

65–74

75+

Median age

46.8

Under 18

23.4%

65 and over

26.1%

Race and ethnicity

White55%
Black0%
Hispanic37%
Asian0%
Native American0%
Pacific Islander0%
Other3%
Multiracial5%

Diversity index

55.5

U.S. 61.4

Foreign-born

12.7%

U.S. 14.1%

Born in state

61.6%

Language spoken at home (households)

English only

76%

Spanish

22%

Other Indo-European

Asian / Pacific

Other

Households

Households: 210
Average household size: 2.3
Family households: 81%
Married couples: 67.6%
Living alone: 17.1%
Veterans (of adults): 6.8%
Male / female: 59% / 41%

Income and poverty

Household income distribution

<$25k

20%

$25–50k

19%

$50–75k

25%

$75–100k

18%

$100–150k

14%

$150–200k

$200k+

Median household income

83321

$60,000

Twin Falls Co.

$67,409

Idaho

$77,800

United States

$80,734

Per capita income

$26,022

U.S. $44,673

Poverty rate

14.8%

U.S. 12.5%

Households earning $150K+

3.8%

U.S. 23%

Income inequality (Gini)

0.367

U.S. 0.483

Housing

Median home value

83321

—

Twin Falls Co.

$337,900

Idaho

$418,600

United States

$332,700

Median gross rent

83321

$925

Twin Falls Co.

$1,089

Idaho

$1,238

United States

$1,413

Types of housing

Single-family

81%

2–4 units

5–19 units

20+ units

Mobile home

16%

Boat, RV, van

Housing units: 231
Owner-occupied: 66.7%
Vacant: 9.1%
Median year built: 1980
Median rooms: 5.9
Renters paying 30%+ of income: 38.9%
Renters paying 50%+ of income: 8.3%
Home value to income: —

Work and commute

How people get to work

Drove alone

89%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

17%

10–19

27%

20–29

20%

30–44

25%

45–59

11%

60+

0.5%

Average commute

21.4 min

U.S. 26.4 min

Unemployment

5.7%

U.S. 5.2%

In labor force

56.8%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Construction and repair

20%

Farming, fishing and forestry

14%

Production

13%

Transportation and moving

13%

Education

Office and admin

Healthcare

Sales

Computer and math

Management

Food service

Arts, media and sports

Legal and social services

Business and finance

Engineering and science

Police and fire

Cleaning and personal care

Industries

Agriculture and mining

28%

Manufacturing

14%

Construction

11%

Transportation, warehousing and utilities

Health care and social assistance

Education

Professional and technical services

Retail

Other services

Wholesale

Restaurants and hotels

Information

Finance, insurance and real estate

Public administration

Admin, support and management

Arts and recreation

Median earnings per worker

$32,500

U.S. $49,666

Self-employed

14.5%

U.S. 10%

Government workers

10%

U.S. 14.5%

Nonprofit workers

U.S. 8.8%

Median earnings by type of work

Type of work	83321	U.S.
Management, business, science and arts	$27,083	$74,888
Service	—	$26,804
Sales and office	$33,750	$40,476
Construction and maintenance	$29,500	$49,199
Production and transportation	$40,250	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

22%

High school

22%

Some college

23%

Associate's

Bachelor's

17%

Graduate

High school graduate or higher: 78%
Bachelor's degree or higher: 24.3%
Graduate or professional degree: 7.6%
Households with broadband: 86.7%
Cable, fiber or DSL: 60%
No internet access: 13.3%
Without health insurance: 20.5%
Limited-English households: 4.8%

Geography

City (USPS): Castleford
State: Idaho
County: Twin Falls County
Center point: 42.3456° N, 114.8474° W
Land area: 181 sq mi
Water area: 0.1 sq mi
Time zone: Mountain Time (UTC-7, UTC-6 in summer)
Zip type: Residential delivery area

Zip codes near 83321

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
83301	Twin Falls, ID	17 mi	63,592	$62,647	$334,000
83316	Buhl, ID	19 mi	10,456	$69,593	$310,300
83328	Filer, ID	20 mi	6,320	$70,851	$331,300
83302	Rogerson, ID	20 mi	35	$108,281	—
83303	Twin Falls, ID · PO box	25 mi	—	—	—
83341	Kimberly, ID	25 mi	9,531	$99,100	$411,400
83334	Hansen, ID	29 mi	2,227	$64,583	$272,800
83355	Wendell, ID	29 mi	5,469	$65,764	$283,300
89825	Jackpot, NV	31 mi	1,415	—	$157,900
83332	Hagerman, ID	32 mi	2,569	$64,792	$226,200
83338	Jerome, ID	34 mi	21,944	$72,072	$269,000
83325	Eden, ID	35 mi	944	$76,375	$240,000

Questions about 83321

What city is zip code 83321?

83321 is assigned to Castleford, Idaho. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 83321 in?

83321 is in Twin Falls County, Idaho.

What is the population of 83321?

About 482 people live in 83321, according to the Census Bureau's American Community Survey.

What time zone is 83321 in?

83321 is in Mountain Time.

What is the median household income in 83321?

The median household income in 83321 is $60,000.

What zip codes are near 83321?

The closest zip codes to 83321 are 83301, 83316, 83328, 83302, 83303.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 83321, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.