Martin is a city in Bennett County, South Dakota, home to about 947 people across 0.6 square miles. Its ZIP code is 57551.
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| Nearest major airport | Denver International Airport (DEN)275 miles away |
|---|---|
| Closer regional airport | Chadron Municipal Airport (CDR)72 miles away |
| Nearest city of 250,000+ | Aurora, CO285 miles away |
| Nearest city of 1 million+ | Chicago, IL721 miles away |
Straight-line distances from the center of Martin; 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.
Martin had 938 residents in the 2020 census, down 15% since 2000.
It’s the 85th largest of 440 towns in South Dakota by population.
Bennett County grew from 96 residents in 1910 to 3,381 in 2020.
Bennett County, 1910–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 13°F. About 20.8 inches of rain and melted snow fall in a typical year, with about 48 inches of snow.
Source: NOAA 1991–2020 climate normals, Martin, SD weather station (about a mile away).
607 jobs at 60 businesses in Bennett County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
13 doctors and other health care providers list an office in Martin.
Nearest hospitals
Providers with an office here
| Dentists | 3 |
|---|---|
| Nurse practitioners and physician assistants | 10 |
| 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 (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Counts are within about 1 mile 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 Bennett County School District 03-1. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Bennett County Elementary School - 03Martin | Pre-K–5 | 217 | Public | 0.3 mi |
| Bennett County Middle School - 06Martin | 6–8 | 100 | Public | 0.2 mi |
| Bennett County High School - 01Martin | 9–12 | 125 | Public | 0.2 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.
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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.