Schleswig ZIP Codes — Crawford County, IA

There is one unique ZIP code in Schleswig, Iowa and it is 51461. Area code: 712.

ZIP codes

54.40

sq mi land

0.04

sq mi water

712

area code

Schleswig, IA ZIP code map

About Schleswig, IA

Schleswig is a quaint city located in Crawford County, Iowa. Known for its friendly community and strong local traditions, it embodies the charm of small-town America. The city's serene atmosphere and rural landscape make it a peaceful place to live or visit.

Location & geography

Schleswig spans a total area of 54.40 square miles, including a minimal water area of 0.04 square miles. The city is situated approximately 18 miles southwest of Denison, the county seat of Crawford County, and about 24 miles northwest of Carroll. The terrain is predominantly flat and rural, featuring agriculture and open spaces, which are characteristic of this region in Iowa.

Community & economy

The community of Schleswig is characterized by its warm hospitality and strong family values. Key industries in the area include agriculture, local retail, and small manufacturing, which contribute to the economy. Daily life in Schleswig often revolves around community events, family gatherings, and a connection to the rich agricultural heritage of the surrounding area.

Transportation

Schleswig is accessible via Iowa Highway 39, which provides connectivity to neighboring towns and cities. The nearest major airport is Sioux City Gateway Airport, located about 60 miles to the west, offering regional flights and larger airport facilities. Local transportation options may be limited, but residents often rely on personal vehicles for commuting.

History

Schleswig was founded in the late 19th century, reflecting the wave of settlement and development that took place in rural Iowa during that time. The city has historically been influenced by agriculture, which remains a key part of its identity. Notable events include community celebrations and festivals that honor its agricultural roots and bring residents together.

Did you know?

A surprising fact about Schleswig is that it has maintained a population that cherishes its agricultural roots while also embracing modern community initiatives. Additionally, it is known for its active community gatherings that celebrate various cultural and seasonal events.

ZIP codes for Schleswig, IA (1)

ZIP code	City	County	Map
51461	Schleswig	Crawford	View map

Demographics & statistics

1,187

Population

37.2

Median age

$69,500

Median household income

$43,764

Per capita income

$133,900

Median home value

$489

Median monthly rent

76.0%

Home ownership

11.0%

Poverty rate

4.2%

Unemployment

444

Housing units

21.1%

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	287	24.2%
18 and over	900	75.8%
65 and over	165	13.9%
Median age	37.2 years

Race & ethnicity

White 68.9%

Hispanic or Latino 12.8%

Two or more races 10.9%

Other race 4%

Asian 2.4%

Black or African American 1%

Group	Count	%
White	938	68.9%
Hispanic or Latino	174	12.8%
Two or more races	149	10.9%
Other race	55	4%
Asian	32	2.4%
Black or African American	13	1%

Household income

Under $10k 5.8%

$10k–$15k 3.6%

$15k–$25k 6.5%

$25k–$35k 6.7%

$35k–$50k 15.1%

$50k–$75k 19.8%

$75k–$100k 18.7%

$100k–$150k 9.1%

$150k–$200k 3.4%

$200k+ 11.3%

Range	% of households
Under $10k	5.8%
$10k–$15k	3.6%
$15k–$25k	6.5%
$25k–$35k	6.7%
$35k–$50k	15.1%
$50k–$75k	19.8%
$75k–$100k	18.7%
$100k–$150k	9.1%
$150k–$200k	3.4%
$200k+	11.3%
Median income	$69,500

Housing

Home values

Under $50k 5.2%

$50k–$100k 30.3%

$100k–$150k 20.9%

$150k–$200k 17.5%

$200k–$300k 17.2%

$300k–$500k 5.2%

$500k–$1M 0.3%

$1M+ 3.4%

Housing overview

Metric	Value
Median home value	$133,900
Median rent / month	$489
Owner occupied	76.0%
Renter occupied	24.0%
Vacant	10.8%
Single-family detached	89.2%
Large apartment buildings	2.5%
Mobile homes	0.2%
Median rooms	6.8
Avg household size (owned)	2.46

Year built

Era	%
2020 or later	0.0%
2010–2019	2.8%
2000–2009	5.3%
1990–1999	4.1%
1980–1989	3.2%
1970–1979	13.1%
1960–1969	14.3%
1950–1959	6.2%
1940–1949	6.9%
1939 or earlier	44.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	6.2%
2 bedrooms	21.2%
3 bedrooms	36.5%
4 bedrooms	28.8%
5+ bedrooms	6.7%

Vehicles per household

Vehicles	% of households
No vehicle	4.2%
1 vehicle	23.0%
2 vehicles	41.5%
3 or more	31.3%

Heating fuel

Fuel type	%
Utility gas	0.6%
Electricity	55.4%
Propane / LP gas	33.5%
Fuel oil	4.4%
Wood	2.2%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	232	46.0%
Cohabiting couple	65	12.9%
Male householder, no spouse	114	22.6%
Female householder, no spouse	93	18.5%
Households with children under 18	160	31.7%
Households with seniors (65+)	113	22.4%
Average household size	2.36

Marital status

Status	Male	Female
Never married	39.1%	19.2%
Married	50.2%	61.8%
Separated	0.0%	0.5%
Widowed	2.9%	7.8%
Divorced	7.8%	10.7%

Education

Less than 9th grade 5.9%

Some HS, no diploma 5.7%

HS graduate 37.3%

Some college, no degree 22.0%

Associate's degree 8.0%

Bachelor's degree 14.6%

Graduate / professional 6.5%

Metric	%
HS diploma or higher	88.4%
Bachelor's or higher	21.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	24	10.4%
Kindergarten	23	10.0%
Elementary school	91	39.6%
High school	37	16.1%
College / grad school	55	23.9%

Employment

Industry of employment

Manufacturing 26.0%

Education & healthcare 15.4%

Agriculture & mining 14.9%

Transportation & utilities 7.9%

Retail trade 6.9%

Construction 6.7%

Finance & real estate 6.1%

Public administration 4.2%

Arts, food & hospitality 3.7%

Wholesale trade 3.0%

Professional & management 2.9%

Other services 1.8%

Information 0.5%

Occupation

Category	%
Management, business & arts	36.0%
Service	5.8%
Sales & office	13.6%
Natural resources & construction	19.4%
Production & transportation	25.2%

Employment type

Type	%
Private sector	76.1%
Government	10.4%
Self-employed	13.2%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	77.9%
Carpool	8.6%
Public transit	0.0%
Walk	1.0%
Other means	1.8%
Avg commute (minutes)	26.8

Poverty

All people 11.0%

Under 18 years 13.9%

18 and over 10.1%

Married-couple families 3.9%

Female-led households 25.6%

Income support

Source	% of households
Social Security	26.4%
Retirement income	18.1%
Supplemental Security	7.3%
Cash public assistance	5.0%
Food stamps / SNAP	7.9%

Health indicators

Condition	%
High blood pressure	34.5%
High cholesterol	35.2%
Heart disease	7.4%
Stroke	3.3%
Asthma	9.0%
Arthritis	25.9%
Kidney disease	3.1%
Pulmonary disease	7.2%
Cancer	7.8%

Behavior / access	%
Binge drinking	20.5%
No physical activity	26.7%
Less than 7 hrs sleep	31.0%
Fair or poor health	13.1%
Poor mental health	12.8%
Poor physical health	9.9%
No health insurance	9.9%
Visited doctor (checkup)	74.5%
Visited dentist	67.6%
Cholesterol screening	89.7%
Teeth loss	13.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	48	5.3%

Disability	%
Any disability	14.8%
Under 18	0.7%
18–64 years	15.2%
65 and over	37.6%

Health insurance coverage

Type	%
Private insurance	70.3%
Public insurance	31.1%
Uninsured under 19	25.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,052	88.6%
Spanish	71	6.7%
Other Indo-European	45	4.3%
Asian & Pacific Islander	5	0.5%
Other languages	21	2.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,125	94.8%
Born in same state	1,113	93.8%
Born in different state	947	79.8%
Foreign born	12	1.0%
Naturalized citizen	62	5.2%
Not a US citizen	26	41.9%

Ancestry

Ancestry	Count	%
Italian	120	10.1%
Arab	45	3.8%
French	39	3.3%
Polish	37	3.1%

Ancestry	Count	%
Dutch	15	1.3%
English	5	0.4%
German	4	0.3%

Technology access

Metric	% of households
Computer access	42.5%
Internet access	88.5%

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

Frequently asked questions

What ZIP codes does Schleswig, IA have?

Schleswig, IA has one ZIP code: 51461. Each ZIP code serves a distinct delivery area within the city and surrounding region.