Castana ZIP Codes — Monona County, IA

There is one unique ZIP code in Castana, Iowa and it is 51010. Area code: 712.

ZIP codes

72.03

sq mi land

0.41

sq mi water

712

area code

Castana, IA ZIP code map

About Castana, IA

Castana, Iowa, is a small yet charming community nestled in Monona County. This city embodies a tight-knit atmosphere where residents enjoy a slower pace of life. With its rich history and proximity to various outdoor activities, Castana offers a unique blend of rural charm and community spirit.

Location & geography

Castana is located in the western part of Iowa, approximately 14 miles northeast of Sioux City. The city is surrounded by natural beauty, with a land area of 72.03 square miles and a water area of 0.41 square miles. This diverse terrain offers various outdoor recreational opportunities, making it an appealing location for nature enthusiasts.

Community & economy

The character of Castana is marked by its friendly residents and strong sense of community. Primarily an agricultural area, the local economy thrives on farming and related industries. Daily life in Castana revolves around communal activities, local events, and the enjoyment of the surrounding natural landscapes.

Transportation

Castana is accessible via Highway 30, which connects it to other significant routes throughout the region. The nearest major airport is Sioux Gateway Airport, located about 15 miles away in Sioux City. Public transportation options may be limited, making personal vehicles the primary mode of travel for residents and visitors.

History

Castana was founded in the late 19th century and has a rich agricultural history that has shaped its development. The city played a significant role in the surrounding agricultural industries, contributing to the overall prosperity of Monona County. Notable events in the city's history include its founding celebrations and community events that bring residents together.

Did you know?

One little-known fact about Castana is that it boasts a rich heritage tied to Native American history. The area's name is derived from a Native American term, which adds to its cultural significance and historical depth.

ZIP codes for Castana, IA (1)

ZIP code	City	County	Map
51010	Castana	Monona	View map

Demographics & statistics

411

Population

60.0

Median age

$71,779

Median household income

$40,211

Per capita income

$108,300

Median home value

$714

Median monthly rent

82.6%

Home ownership

8.0%

Poverty rate

1.8%

Unemployment

209

Housing units

6.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	53	12.9%
18 and over	358	87.1%
65 and over	114	27.7%
Median age	60.0 years

Race & ethnicity

White 98.5%

Two or more races 1.5%

Group	Count	%
White	405	98.5%
Two or more races	6	1.5%

Household income

$10k–$15k 3.3%

$15k–$25k 10.3%

$25k–$35k 7.5%

$35k–$50k 8.5%

$50k–$75k 23.9%

$75k–$100k 14.6%

$100k–$150k 29.1%

$150k–$200k 2.3%

$200k+ 0.5%

Range	% of households
$10k–$15k	3.3%
$15k–$25k	10.3%
$25k–$35k	7.5%
$35k–$50k	8.5%
$50k–$75k	23.9%
$75k–$100k	14.6%
$100k–$150k	29.1%
$150k–$200k	2.3%
$200k+	0.5%
Median income	$71,779

Housing

Home values

Under $50k 18.2%

$50k–$100k 26.1%

$100k–$150k 25.6%

$150k–$200k 10.2%

$200k–$300k 11.4%

$300k–$500k 5.1%

$1M+ 3.4%

Housing overview

Metric	Value
Median home value	$108,300
Median rent / month	$714
Owner occupied	82.6%
Renter occupied	17.4%
Vacant	13.4%
Single-family detached	84.6%
Large apartment buildings	0.0%
Mobile homes	9.3%
Median rooms	7.3
Avg household size (owned)	2.03

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	22.8%
1990–1999	4.9%
1980–1989	8.5%
1970–1979	3.3%
1960–1969	9.8%
1950–1959	12.2%
1940–1949	3.7%
1939 or earlier	35.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.1%
2 bedrooms	42.3%
3 bedrooms	39.8%
4 bedrooms	11.8%
5+ bedrooms	2.0%

Vehicles per household

Vehicles	% of households
No vehicle	4.7%
1 vehicle	6.1%
2 vehicles	47.9%
3 or more	41.3%

Heating fuel

Fuel type	%
Utility gas	2.3%
Electricity	30.0%
Propane / LP gas	40.8%
Fuel oil	7.5%
Wood	11.7%
No fuel used	4.2%

Households & families

Household type	Count	%
Married-couple family	99	46.5%
Cohabiting couple	28	13.1%
Male householder, no spouse	47	22.1%
Female householder, no spouse	39	18.3%
Households with children under 18	36	16.9%
Households with seniors (65+)	85	39.9%
Average household size	1.93

Marital status

Status	Male	Female
Never married	8.6%	14.3%
Married	61.1%	51.5%
Separated	0.0%	0.0%
Widowed	4.6%	19.9%
Divorced	25.7%	14.3%

Education

Less than 9th grade 0.0%

Some HS, no diploma 2.9%

HS graduate 48.2%

Some college, no degree 30.0%

Associate's degree 12.1%

Bachelor's degree 6.8%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	97.1%
Bachelor's or higher	6.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1	1.7%
Kindergarten	0	0.0%
Elementary school	30	51.7%
High school	16	27.6%
College / grad school	11	19.0%

Employment

Industry of employment

Education & healthcare 21.3%

Retail trade 14.2%

Manufacturing 12.7%

Transportation & utilities 12.4%

Arts, food & hospitality 9.7%

Construction 7.9%

Professional & management 7.5%

Finance & real estate 4.1%

Agriculture & mining 3.7%

Public administration 3.4%

Other services 1.5%

Wholesale trade 1.1%

Information 0.4%

Occupation

Category	%
Management, business & arts	27.3%
Service	25.8%
Sales & office	11.6%
Natural resources & construction	13.1%
Production & transportation	22.1%

Employment type

Type	%
Private sector	88.4%
Government	6.4%
Self-employed	5.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.8%
Carpool	3.4%
Public transit	1.9%
Walk	0.4%
Other means	0.4%
Avg commute (minutes)	42.5

Poverty

All people 8.0%

Under 18 years 11.3%

18 and over 7.5%

Married-couple families 3.0%

Female-led households 50.0%

Income support

Source	% of households
Social Security	44.6%
Retirement income	22.5%
Supplemental Security	0.0%
Cash public assistance	6.1%
Food stamps / SNAP	6.6%

Health indicators

Condition	%
High blood pressure	36.9%
High cholesterol	36.9%
Heart disease	7.4%
Stroke	3.4%
Asthma	9.3%
Arthritis	27.2%
Kidney disease	3.1%
Pulmonary disease	7.9%
Cancer	7.6%

Behavior / access	%
Binge drinking	20.9%
No physical activity	25.0%
Less than 7 hrs sleep	30.8%
Fair or poor health	13.9%
Poor mental health	13.4%
Poor physical health	10.6%
No health insurance	9.1%
Visited doctor (checkup)	75.5%
Visited dentist	64.6%
Cholesterol screening	89.4%
Teeth loss	13.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	29	8.1%

Disability	%
Any disability	8.8%
Under 18	0.0%
18–64 years	7.4%
65 and over	15.8%

Health insurance coverage

Type	%
Private insurance	74.5%
Public insurance	35.5%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	405	98.5%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	411	100.0%
Born in same state	411	100.0%
Born in different state	329	80.0%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	103	25.1%
Polish	64	15.6%
Italian	34	8.3%

Ancestry	Count	%
Dutch	24	5.8%
English	15	3.6%
Arab	4	1%

Technology access

Metric	% of households
Computer access	51.8%
Internet access	91.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Castana, IA have?

Castana, IA has one ZIP code: 51010. Each ZIP code serves a distinct delivery area within the city and surrounding region.