North Sioux City is a city in Union County, South Dakota, home to about 3,045 people across 2.7 square miles. It has no ZIP code of its own: it’s part of 57049.
Homes sold for a median of $174 per square foot in the three months ending August 2026, a balanced market.
Mostly Dakota Dunes; part is in North Sioux City
Each card is that ZIP code’s whole market, including any part outside North Sioux City. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up North Sioux City’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows North Sioux City well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Eppley Airfield (OMA)90 miles away |
|---|---|
| Closer regional airport | Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)11 miles away |
| Nearest city of 250,000+ | Omaha, NE90 miles away |
| Nearest city of 1 million+ | Chicago, IL454 miles away |
Straight-line distances from the center of North Sioux City; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
North Sioux City had 3,042 residents in the 2020 census, up 33% since 2000.
It’s the 25th largest of 440 towns in South Dakota by population.
Union County grew from 11,153 residents in 1900 to 16,811 in 2020.
Union County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 9°F. About 30.4 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Sioux City Ang, IA weather station (11 miles away).
9,844 jobs at 555 businesses in Union County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
261 doctors and other health care providers list an office in North Sioux City.
Nearest hospitals
Providers with an office here
| Primary care doctors | 9 |
|---|---|
| Specialist doctors | 93 |
| Dentists | 11 |
| Nurse practitioners and physician assistants | 80 |
| Mental health providers | 7 |
| Physical and occupational therapists | 50 |
| Optometrists | 4 |
| Chiropractors | 7 |
| Pharmacies | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (2 nearby)
Grocery stores
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Dakota Valley School District 61-8. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Dakota Valley Elementary - 02North Sioux City | K–3 | 386 | Public | 1.8 mi |
| Dakota Valley Upper Elementary - 04North Sioux City | 4–5 | 179 | Public | 1.9 mi |
| Dakota Valley Middle School - 03North Sioux City | 6–8 | 345 | Public | 1.9 mi |
| Dakota Valley High School - 01North Sioux City | 9–12 | 431 | Public | 1.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
Buying or selling around North Sioux City? Tell us what you need and when. No agents advertise here yet, so we’ll keep your request for up to 30 days and send it to local agents who join. No obligation, and you choose who to work with.
Loading map…
Shares ZIP codes with Dakota Dunes.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.