Le Mars ZIP Codes — Plymouth County, IA

There is one unique ZIP code in Le Mars, Iowa and it is 51031. Area code: 712.

ZIP codes

234.15

sq mi land

0.01

sq mi water

712

area code

Le Mars, IA ZIP code map

About Le Mars, IA

Le Mars, Iowa is a charming city located in the northwest part of the state. Known as the 'Ice Cream Capital of the World,' it boasts a rich cultural heritage and vibrant community spirit. With a unique blend of small-town charm and a variety of amenities, Le Mars attracts both residents and visitors alike.

Location & geography

Le Mars is situated in Plymouth County, and it is approximately 35 miles northwest of Sioux City. The city is part of a rolling landscape typical of Iowa, featuring farmland and prairie, with only a small water area of 0.01 square miles. Nearby cities include Orange City, which is about 15 miles to the east, and Sioux Center, located around 20 miles to the southeast.

Community & economy

The community of Le Mars is characterized by its friendly atmosphere and active involvement in local events. Agriculture and food processing are significant industries in the area, with many residents working in related fields. Daily life in Le Mars is enhanced by various recreational opportunities, including parks, schools, and community activities that foster a strong sense of camaraderie.

Transportation

Le Mars is accessible via U.S. Highway 75, which runs through the city and connects it to other major routes in the region. The nearest commercial airport is Sioux Gateway Airport, located approximately 35 miles to the south in Sioux City. Public transit options may be limited, but local taxi services and rideshare options are available.

History

Le Mars was founded in the late 19th century and quickly grew as a center for agriculture and industry, particularly in the dairy sector. The city is known for its historical significance in the ice cream industry, with local manufacturers claiming the title of the 'Ice Cream Capital of the World' since the 1930s. Notable events in its history include annual celebrations that support local businesses and foster community pride.

Did you know?

One surprising fact about Le Mars is that it is home to the Blue Bunny Ice Cream parlor, which serves as a major attraction for visitors. Additionally, the city features a beautiful downtown area with murals that showcase its rich history and vibrant culture.

ZIP codes for Le Mars, IA (1)

ZIP code	City	County	Map
51031	Le Mars	Plymouth	View map

Demographics & statistics

12,595

Population

39.5

Median age

$75,540

Median household income

$38,839

Per capita income

$190,300

Median home value

$835

Median monthly rent

69.5%

Home ownership

6.3%

Poverty rate

2.2%

Unemployment

3,843

Housing units

25.8%

Bachelor's or higher

Age distribution

Male Female

386

Under 5

379

474

5–9

464

463

10–14

453

423

15–19

414

372

20–24

365

720

25–34

705

792

35–44

776

826

45–54

809

354

55–59

346

442

60–64

432

630

65–74

617

253

75–84

248

228

85+

224

← Male

Female →

Age summary

Group	Count	%
Under 18	3,210	25.5%
18 and over	9,385	74.5%
65 and over	2,200	17.5%
Median age	39.5 years

Race & ethnicity

White 87.3%

Hispanic or Latino 3.9%

Black or African American 3%

Other race 2.7%

Two or more races 2.1%

Native Hawaiian / Pacific Islander 0.7%

Asian 0.2%

American Indian / Alaska Native 0.1%

Group	Count	%
White	11,436	87.3%
Hispanic or Latino	506	3.9%
Black or African American	392	3%
Other race	351	2.7%
Two or more races	281	2.1%
Native Hawaiian / Pacific Islander	97	0.7%
Asian	20	0.2%
American Indian / Alaska Native	18	0.1%

Household income

Under $10k 3.0%

$10k–$15k 3.2%

$15k–$25k 7.9%

$25k–$35k 4.9%

$35k–$50k 8.7%

$50k–$75k 21.7%

$75k–$100k 18.4%

$100k–$150k 17.3%

$150k–$200k 7.0%

$200k+ 7.8%

Range	% of households
Under $10k	3.0%
$10k–$15k	3.2%
$15k–$25k	7.9%
$25k–$35k	4.9%
$35k–$50k	8.7%
$50k–$75k	21.7%
$75k–$100k	18.4%
$100k–$150k	17.3%
$150k–$200k	7.0%
$200k+	7.8%
Median income	$75,540

Housing

Home values

Under $50k 7.0%

$50k–$100k 7.0%

$100k–$150k 16.5%

$150k–$200k 24.3%

$200k–$300k 20.9%

$300k–$500k 21.1%

$500k–$1M 3.1%

Housing overview

Metric	Value
Median home value	$190,300
Median rent / month	$835
Owner occupied	69.5%
Renter occupied	30.5%
Vacant	5.2%
Single-family detached	67.9%
Large apartment buildings	3.1%
Mobile homes	6.5%
Median rooms	6.0
Avg household size (owned)	2.70

Year built

Era	%
2020 or later	0.5%
2010–2019	7.2%
2000–2009	8.1%
1990–1999	12.7%
1980–1989	7.3%
1970–1979	19.0%
1960–1969	9.5%
1950–1959	8.2%
1940–1949	3.1%
1939 or earlier	24.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	6.4%
2 bedrooms	30.9%
3 bedrooms	32.1%
4 bedrooms	21.0%
5+ bedrooms	8.3%

Vehicles per household

Vehicles	% of households
No vehicle	5.0%
1 vehicle	29.4%
2 vehicles	40.8%
3 or more	24.9%

Heating fuel

Fuel type	%
Utility gas	55.0%
Electricity	33.3%
Propane / LP gas	9.9%
Fuel oil	0.8%
Solar	0.1%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	2,871	56.0%
Cohabiting couple	186	3.6%
Male householder, no spouse	928	18.1%
Female householder, no spouse	1,143	22.3%
Households with children under 18	1,691	33.0%
Households with seniors (65+)	1,636	31.9%
Average household size	2.42

Marital status

Status	Male	Female
Never married	30.1%	19.6%
Married	59.9%	60.0%
Separated	0.8%	1.0%
Widowed	3.0%	10.8%
Divorced	6.3%	8.6%

Education

Less than 9th grade 3.2%

Some HS, no diploma 1.9%

HS graduate 35.1%

Some college, no degree 19.5%

Associate's degree 14.5%

Bachelor's degree 18.7%

Graduate / professional 7.0%

Metric	%
HS diploma or higher	94.9%
Bachelor's or higher	25.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	352	11.4%
Kindergarten	361	11.6%
Elementary school	1,170	37.8%
High school	798	25.8%
College / grad school	418	13.5%

Employment

Industry of employment

Manufacturing 24.1%

Education & healthcare 19.3%

Retail trade 8.7%

Transportation & utilities 8.5%

Agriculture & mining 6.8%

Professional & management 5.5%

Finance & real estate 5.2%

Other services 5.2%

Construction 4.5%

Arts, food & hospitality 4.2%

Public administration 3.6%

Wholesale trade 2.5%

Information 1.8%

Occupation

Category	%
Management, business & arts	33.1%
Service	14.6%
Sales & office	18.2%
Natural resources & construction	12.4%
Production & transportation	21.7%

Employment type

Type	%
Private sector	83.2%
Government	11.5%
Self-employed	5.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	80.0%
Carpool	9.7%
Public transit	0.0%
Walk	3.7%
Other means	0.9%
Avg commute (minutes)	16.5

Poverty

All people 6.3%

Under 18 years 6.0%

18 and over 6.4%

Married-couple families 2.3%

Female-led households 13.3%

Income support

Source	% of households
Social Security	34.1%
Retirement income	19.6%
Supplemental Security	4.0%
Cash public assistance	2.2%
Food stamps / SNAP	6.0%

Health indicators

Condition	%
High blood pressure	32.9%
High cholesterol	32.1%
Heart disease	6.4%
Stroke	2.9%
Asthma	9.2%
Arthritis	23.3%
Kidney disease	2.8%
Pulmonary disease	6.4%
Cancer	7.2%

Behavior / access	%
Binge drinking	20.9%
No physical activity	23.2%
Less than 7 hrs sleep	28.0%
Fair or poor health	12.1%
Poor mental health	12.9%
Poor physical health	9.2%
No health insurance	9.3%
Visited doctor (checkup)	74.8%
Visited dentist	69.6%
Cholesterol screening	88.6%
Teeth loss	12.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	724	7.7%

Disability	%
Any disability	13.4%
Under 18	1.5%
18–64 years	10.9%
65 and over	40.2%

Health insurance coverage

Type	%
Private insurance	78.6%
Public insurance	29.7%
Uninsured under 19	6.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,830	93.9%
Spanish	697	5.9%
Other Indo-European	519	4.4%
Asian & Pacific Islander	16	0.1%
Other languages	42	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	11,796	93.7%
Born in same state	11,629	92.3%
Born in different state	9,117	72.4%
Foreign born	167	1.3%
Naturalized citizen	799	6.3%
Not a US citizen	256	32.0%

Ancestry

Ancestry	Count	%
Italian	1,495	11.9%
English	948	7.5%
French	617	4.9%

Ancestry	Count	%
Arab	460	3.7%
Polish	403	3.2%
Dutch	80	0.6%

Technology access

Metric	% of households
Computer access	40.7%
Internet access	92.7%

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

Frequently asked questions

What ZIP codes does Le Mars, IA have?

Le Mars, IA has one ZIP code: 51031. Each ZIP code serves a distinct delivery area within the city and surrounding region.