North Sioux City ZIP Code List — Union County, SD

There is one unique ZIP code in North Sioux City, South Dakota and it is 57049. Area code: 605.

ZIP codes

14.17

sq mi land

1.47

sq mi water

605

area code

North Sioux City, SD ZIP code map

About North Sioux City, SD

North Sioux City is a vibrant city located in the state of South Dakota. Nestled in Union County, it serves as an attractive suburb to the larger Sioux City, Iowa metropolitan area. With its rich community spirit and accessible amenities, North Sioux City is an appealing place for families and individuals alike.

Location & geography

North Sioux City is situated in the southeastern part of South Dakota, directly adjacent to the Missouri River. It is conveniently located just a few miles from Sioux City, Iowa, and is also near communities such as Dakota Dunes, South Dakota, and South Sioux City, Nebraska. The city covers a total area of 14.17 square miles, with 1.47 square miles classified as water, contributing to its picturesque landscape.

Community & economy

The character of North Sioux City is defined by its friendly and welcoming atmosphere, making it a great place for residents. The local community thrives on a mix of small businesses and industries, fostering a sense of camaraderie among its citizens. Daily life includes a range of recreational activities, local events, and gatherings that bring people together.

Transportation

North Sioux City is easily accessible via major highways, including Interstate 29, which connects the city to other parts of South Dakota and neighboring states. The nearest airport is the Sioux Gateway Airport, located just a short drive away in Sioux City, Iowa, catering to both passenger and cargo flights. Public transportation options in the area help residents commute to nearby cities.

History

North Sioux City was founded in conjunction with the growth of demand for transport along the Missouri River, marking it as a vital hub in the region. Key industries have included agriculture and retail, with developments catering to the needs of growing populations. Over the years, the city has celebrated various events that showcase its history and community spirit.

Did you know?

One surprising fact about North Sioux City is that it has a notable annual event known as the North Sioux City Days, which celebrates the local community with parades, food, and entertainment. Additionally, it is recognized for its unique place as a vibrant suburb that meshes rural charm with urban convenience.

ZIP codes for North Sioux City, SD (1)

ZIP code	City	County	Map
57049	North Sioux City	Union	View map

Demographics & statistics

7,661

Population

38.0

Median age

$88,948

Median household income

$57,813

Per capita income

$377,700

Median home value

$1,104

Median monthly rent

60.4%

Home ownership

9.4%

Poverty rate

2.5%

Unemployment

2,090

Housing units

46.4%

Bachelor's or higher

Age distribution

Male Female

138

Under 5

140

266

5–9

270

310

10–14

315

242

15–19

246

302

20–24

307

494

25–34

501

442

35–44

449

409

45–54

415

262

55–59

266

259

60–64

263

478

65–74

485

155

75–84

158

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,778	23.2%
18 and over	5,883	76.8%
65 and over	1,365	17.8%
Median age	38.0 years

Race & ethnicity

White 83%

Two or more races 5.8%

Hispanic or Latino 4.1%

Asian 3.2%

Other race 1.7%

American Indian / Alaska Native 1.5%

Black or African American 0.7%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	6,629	83%
Two or more races	460	5.8%
Hispanic or Latino	330	4.1%
Asian	258	3.2%
Other race	136	1.7%
American Indian / Alaska Native	117	1.5%
Black or African American	52	0.7%
Native Hawaiian / Pacific Islander	9	0.1%

Household income

Under $10k 3.6%

$10k–$15k 3.8%

$15k–$25k 2.9%

$25k–$35k 4.7%

$35k–$50k 11.9%

$50k–$75k 13.5%

$75k–$100k 15.6%

$100k–$150k 18.0%

$150k–$200k 11.2%

$200k+ 14.7%

Range	% of households
Under $10k	3.6%
$10k–$15k	3.8%
$15k–$25k	2.9%
$25k–$35k	4.7%
$35k–$50k	11.9%
$50k–$75k	13.5%
$75k–$100k	15.6%
$100k–$150k	18.0%
$150k–$200k	11.2%
$200k+	14.7%
Median income	$88,948

Housing

Home values

Under $50k 5.6%

$50k–$100k 4.8%

$100k–$150k 5.6%

$150k–$200k 7.4%

$200k–$300k 13.8%

$300k–$500k 36.5%

$500k–$1M 23.9%

$1M+ 2.5%

Housing overview

Metric	Value
Median home value	$377,700
Median rent / month	$1,104
Owner occupied	60.4%
Renter occupied	39.6%
Vacant	3.3%
Single-family detached	54.3%
Large apartment buildings	17.6%
Mobile homes	3.6%
Median rooms	5.6
Avg household size (owned)	2.69

Year built

Era	%
2020 or later	0.0%
2010–2019	25.0%
2000–2009	27.8%
1990–1999	24.6%
1980–1989	5.1%
1970–1979	9.1%
1960–1969	3.0%
1950–1959	1.0%
1940–1949	1.0%
1939 or earlier	3.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	12.5%
2 bedrooms	27.8%
3 bedrooms	27.8%
4 bedrooms	18.0%
5+ bedrooms	13.2%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	31.7%
2 vehicles	46.9%
3 or more	20.1%

Heating fuel

Fuel type	%
Utility gas	47.2%
Electricity	44.1%
Propane / LP gas	5.4%
Wood	0.7%
No fuel used	2.6%

Households & families

Household type	Count	%
Married-couple family	1,772	54.1%
Cohabiting couple	278	8.5%
Male householder, no spouse	513	15.7%
Female householder, no spouse	713	21.8%
Households with children under 18	909	27.7%
Households with seniors (65+)	902	27.5%
Average household size	2.34

Marital status

Status	Male	Female
Never married	31.6%	22.6%
Married	57.4%	61.1%
Separated	1.0%	1.8%
Widowed	1.8%	7.9%
Divorced	8.2%	6.6%

Education

Less than 9th grade 0.9%

Some HS, no diploma 2.7%

HS graduate 23.6%

Some college, no degree 17.2%

Associate's degree 9.2%

Bachelor's degree 28.0%

Graduate / professional 18.3%

Metric	%
HS diploma or higher	96.4%
Bachelor's or higher	46.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	79	4.1%
Kindergarten	72	3.7%
Elementary school	988	50.8%
High school	444	22.8%
College / grad school	361	18.6%

Employment

Industry of employment

Education & healthcare 24.6%

Manufacturing 13.4%

Retail trade 11.7%

Finance & real estate 10.0%

Professional & management 7.8%

Construction 7.4%

Arts, food & hospitality 7.0%

Transportation & utilities 5.0%

Wholesale trade 4.7%

Information 2.8%

Other services 2.4%

Agriculture & mining 1.6%

Public administration 1.5%

Occupation

Category	%
Management, business & arts	50.6%
Service	13.0%
Sales & office	20.9%
Natural resources & construction	7.4%
Production & transportation	8.1%

Employment type

Type	%
Private sector	86.8%
Government	9.9%
Self-employed	3.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.0%
Carpool	5.3%
Public transit	0.0%
Walk	0.0%
Other means	0.5%
Avg commute (minutes)	13.8

Poverty

All people 9.4%

Under 18 years 9.4%

18 and over 9.3%

Married-couple families 2.9%

Female-led households 37.1%

Income support

Source	% of households
Social Security	27.1%
Retirement income	22.3%
Supplemental Security	0.8%
Cash public assistance	1.2%
Food stamps / SNAP	6.0%

Health indicators

Condition	%
High blood pressure	28.1%
High cholesterol	29.7%
Heart disease	5.7%
Stroke	2.5%
Asthma	8.6%
Arthritis	22.4%
Kidney disease	2.5%
Pulmonary disease	5.0%
Cancer	6.5%

Behavior / access	%
Binge drinking	21.6%
No physical activity	20.2%
Less than 7 hrs sleep	28.6%
Fair or poor health	9.7%
Poor mental health	10.4%
Poor physical health	7.7%
No health insurance	10.5%
Visited doctor (checkup)	74.8%
Visited dentist	70.8%
Cholesterol screening	89.4%
Teeth loss	11.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	465	7.9%

Disability	%
Any disability	10.2%
Under 18	6.5%
18–64 years	5.1%
65 and over	31.9%

Health insurance coverage

Type	%
Private insurance	83.6%
Public insurance	27.9%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,383	96.4%
Spanish	131	1.8%
Other Indo-European	19	0.3%
Asian & Pacific Islander	77	1.0%
Other languages	7	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,293	95.2%
Born in same state	7,266	94.8%
Born in different state	1,180	15.4%
Foreign born	27	0.4%
Naturalized citizen	368	4.8%
Not a US citizen	162	44.0%

Ancestry

Ancestry	Count	%
Italian	1,010	13.2%
French	662	8.6%
English	354	4.6%
Arab	309	4%

Ancestry	Count	%
Polish	286	3.7%
Dutch	146	1.9%
German	31	0.4%

Technology access

Metric	% of households
Computer access	42.8%
Internet access	95.8%

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

Frequently asked questions

What is the ZIP code for North Sioux City, SD?

North Sioux City, SD has one ZIP code: 57049.

What is the main ZIP code for North Sioux City, SD?

The primary ZIP code for North Sioux City, SD is 57049. The city uses area code 605 for phone service.

What county is North Sioux City, SD in?

North Sioux City is located in Union County, South Dakota.

How many ZIP codes are in North Sioux City, SD?

North Sioux City, SD has 1 ZIP code.

What ZIP code covers the downtown area and business district of North Sioux City along 4th Street?

The downtown business district of North Sioux City is located in ZIP code 57049, which encompasses the city's main commercial corridor along 4th Street and surrounding areas.

What is the ZIP code for North Sioux City's residential neighborhoods near the Big Sioux River?

Residential neighborhoods in North Sioux City, including those near the Big Sioux River on the city's eastern border, are served by ZIP code 57049.